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Cover Page - USD ($)	12 Months Ended
Cover Page - USD ($)	Jun. 30, 2019	Aug. 30, 2019	Dec. 31, 2018
Cover page.
Document Type	10-K
Document Annual Report	true
Document Period End Date	Jun. 30, 2019
Document Transition Report	false
Entity File Number	001-34630
Entity Registrant Name	Aspen Technology, Inc
Entity Central Index Key	0000929940
Amendment Flag	false
Current Fiscal Year End Date	--06-30
Document Fiscal Year Focus	2019
Document Fiscal Period Focus	FY
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	04-2739697
Entity Address, Address Line One	20 Crosby Drive
Entity Address, City or Town	Bedford
Entity Address, State or Province	MA
Entity Address, Postal Zip Code	01730
City Area Code	781
Local Phone Number	221-6400
Title of 12(b) Security	Common stock, $0.10 par value per share
Trading Symbol	AZPN
Security Exchange Name	NASDAQ
Entity Well-known Seasoned Issuer	Yes
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Public Float			$ 5,131,947,302
Common stock held by non-affiliates			62,447,643
Share price as of December 31, 2018			$ 82.18
Entity Common Stock, Shares Outstanding		68,367,624
Documents Incorporated by Reference [Text Block]	Portions of the registrant's Proxy Statement related to its 2019 Annual Meeting of Stockholders to be filed with the Securities and Exchange Commission pursuant to Regulation 14A not later than 120 days after the end of the fiscal year covered by this Form 10-K are incorporated by reference in Part III, Items 10-14 of this Form 10-K.

Cover Page Explanatory Note (Details) - USD ($) $ in Thousands	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018
Contract assets	$ 619,703
Deferred income taxes	159,071				$ 0
Accounts Receivable, Net, Current	47,784				21,910
Retained earnings	$ 1,259,984				305,208
Accounting Standards Update 2014-09 (Topic 606) [Member]
Contract assets					557,377
Deferred income taxes		$ 135,535	$ 137,872	$ 140,197	184,901
Accounts Receivable, Net, Current		41,640	52,933	50,346	41,810
Retained earnings		1,156,120	1,094,533	1,035,316	997,250
Restatement Adjustment [Member]
Contract assets				(84,000)	87,600
Deferred income taxes				19,400	19,400
Accounts Receivable, Net, Current				3,700
Retained earnings				68,300	68,300
Restatement Adjustment [Member] \| Accounting Standards Update 2014-09 (Topic 606) [Member]
Deferred income taxes		(19,366)	(19,366)	(19,366)	(29,224)
Accounts Receivable, Net, Current		(3,653)	(3,653)	(3,653)	0
Retained earnings		$ (68,257)	$ (68,257)	$ (68,257)	$ (68,257)

CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2017
Revenue:
Revenue	$ 598,345	$ 499,514	$ 482,942
Cost of revenue:
Total cost of revenue	57,816
Gross profit	540,529	448,870	435,476
Operating expenses:
Selling and marketing	111,374	101,077	92,633
Research and development	83,122
General and administrative	63,231	56,076	51,297
Total operating expenses	257,727	239,229	223,460
Income from operations	282,802	209,641	212,016
Interest income	28,457	231	808
Interest (expense)	(8,733)
Other income (expense), net	664
Income before income taxes	303,190
Provision for (benefit from) income taxes	40,456	54,655	48,150
Net income	$ 262,734	$ 148,688	$ 162,196
Net income per common share:
Basic (in dollars per share)	$ 3.76	$ 2.06	$ 2.12
Diluted (in dollars per share)	$ 3.71	$ 2.04	$ 2.11
Weighted average shares outstanding:
Basic (in shares)	69,925	72,140	76,491
Diluted (in shares)	70,787	72,956	76,978
License [Member]
Revenue:
Revenue	$ 404,122	$ 0	$ 0
Cost of revenue:
Total cost of revenue	7,060
Maintenance [Member]
Revenue:
Revenue	165,436	0	0
Cost of revenue:
Total cost of revenue	19,208
Services and other [Member]
Revenue:
Revenue	28,787	28,473	29,430
Cost of revenue:
Total cost of revenue	$ 31,548
Accounting Standards Update 2014-09 (Topic 606) [Member]
Revenue:
Revenue		518,859	494,427
Cost of revenue:
Total cost of revenue		50,644	47,466
Gross profit		468,215	446,961
Operating expenses:
Selling and marketing		99,737	91,977
Research and development		82,076	79,530
General and administrative		67,181	58,735
Total operating expenses		248,994	230,242
Income from operations		219,221	216,719
Interest income		24,954	22,942
Interest (expense)		(5,691)	(3,787)
Other income (expense), net		(838)	1,309
Income before income taxes		237,646	237,183
Provision for (benefit from) income taxes		(56,057)	57,797
Net income		$ 293,703	$ 179,386
Net income per common share:
Basic (in dollars per share)		$ 4.07	$ 2.35
Diluted (in dollars per share)		$ 4.03	$ 2.33
Weighted average shares outstanding:
Basic (in shares)		72,140	76,491
Diluted (in shares)		72,956	76,978
Accounting Standards Update 2014-09 (Topic 606) [Member] \| License [Member]
Revenue:
Revenue		$ 326,549	$ 307,259
Cost of revenue:
Total cost of revenue		5,236	4,231
Accounting Standards Update 2014-09 (Topic 606) [Member] \| Maintenance [Member]
Revenue:
Revenue		161,065	157,012
Cost of revenue:
Total cost of revenue		17,408	16,821
Accounting Standards Update 2014-09 (Topic 606) [Member] \| Services and other [Member]
Revenue:
Revenue		31,245	30,156
Cost of revenue:
Total cost of revenue		$ 28,000	$ 26,414

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2017
Net income	$ 262,734	$ 148,688	$ 162,196
Other comprehensive loss:
Foreign currency translation adjustments	(1,052)
Total other comprehensive loss	(1,052)
Comprehensive income	$ 261,682
Accounting Standards Update 2014-09 (Topic 606) [Member]
Net income		293,703	179,386
Other comprehensive loss:
Foreign currency translation adjustments		(71)	(1,192)
Total other comprehensive loss		(71)	(1,192)
Comprehensive income		$ 293,632	$ 178,194

- Definition

The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

+ References + Details

CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2016
Current assets:
Cash and cash equivalents	$ 71,926				$ 96,165
Accounts receivable, net	47,784				21,910
Current contract assets	294,193				0
Prepaid expenses and other current assets	12,628
Prepaid income taxes	2,509
Total current assets	429,040
Property, equipment and leasehold improvements, net	7,234				9,806
Computer software development costs, net	1,306
Goodwill	78,383
Intangible assets, net	33,607				35,310
Non-current contract assets	325,510				0
Contract costs	24,982				0
Non-current deferred tax assets	1,669				11,090
Other non-current assets	1,334
Total assets	903,065				264,924
Current liabilities:
Accounts payable	5,891
Accrued expenses and other current liabilities	54,594				39,515
Income taxes payable	14,952
Borrowings under credit agreement	220,000
Current deferred revenue	25,318				286,845
Total current liabilities	320,755
Non-current deferred revenue	19,573				28,259
Deferred income taxes	159,071				0
Other non-current liabilities	10,381				18,492
Commitments and contingencies (Note 16)
Series D redeemable convertible preferred stock, $0.10 par value—Authorized—3,636 shares as of June 30, 2019 and 2018 Issued and outstanding—none as of June 30, 2019 and 2018	0
Stockholders' deficit:
Common stock, $0.10 par value—Authorized—210,000,000 shares Issued—103,642,292 shares at June 30, 2019 and 103,130,300 shares at June 30, 2018 Outstanding—68,624,566 shares at June 30, 2019 and 71,186,701 shares at June 30, 2018	10,365
Additional paid-in capital	739,099
Retained earnings	1,259,984				305,208
Accumulated other comprehensive income	336
Treasury stock, at cost— 35,017,726 shares of common stock at June 30, 2019 and 31,943,599 shares at June 30, 2018	(1,616,499)
Total stockholders' equity	393,285						$ (75,034)
Total liabilities and stockholders' equity	$ 903,065				264,924
Accounting Standards Update 2014-09 (Topic 606) [Member]
Current assets:
Cash and cash equivalents		$ 65,592	$ 54,428	$ 52,048	96,165	$ 101,954	318,336
Accounts receivable, net		41,640	52,933	50,346	41,810
Current contract assets		270,732	265,686	238,495	237,537
Current contract costs		0	0	0	0
Prepaid expenses and other current assets		11,124	10,330	12,992	10,509
Prepaid income taxes		1,573	921	1,422	2,601
Total current assets		390,661	384,298	355,303	388,622
Property, equipment and leasehold improvements, net		7,589	8,311	9,006	9,806
Computer software development costs, net		1,452	691	695	646
Goodwill		73,534	74,802	75,649	75,590
Intangible assets, net		31,756	32,889	34,192	35,310
Non-current contract assets		318,752	338,060	353,449	319,840
Contract costs		24,325	23,046	21,296	20,500
Non-current deferred tax assets		1,696	1,651	1,176	1,232
Other non-current assets		1,279	1,075	1,279	1,297
Total assets		851,044	864,823	852,045	852,843
Current liabilities:
Accounts payable		4,023	5,249	2,501	4,230
Accrued expenses and other current liabilities		42,746	36,688	32,000	39,515
Income taxes payable		35,582	43,573	46,869	1,698
Borrowings under credit agreement		220,000	220,000	170,000	170,000
Current deferred revenue		24,415	23,145	23,737	15,150
Total current liabilities		326,766	328,655	275,107	230,593
Non-current deferred revenue		19,312	18,167	15,046	12,354
Deferred income taxes		135,535	137,872	140,197	184,901
Other non-current liabilities		12,403	16,192	16,833	17,068
Commitments and contingencies (Note 16)
Series D redeemable convertible preferred stock, $0.10 par value—Authorized—3,636 shares as of June 30, 2019 and 2018 Issued and outstanding—none as of June 30, 2019 and 2018		0	0	0	0
Stockholders' deficit:
Common stock, $0.10 par value—Authorized—210,000,000 shares Issued—103,642,292 shares at June 30, 2019 and 103,130,300 shares at June 30, 2018 Outstanding—68,624,566 shares at June 30, 2019 and 71,186,701 shares at June 30, 2018		10,348	10,340	10,328	10,313
Additional paid-in capital		730,830	725,493	724,752	715,475
Retained earnings		1,156,120	1,094,533	1,035,316	997,250
Accumulated other comprehensive income		1,229	70	965	1,388
Treasury stock, at cost— 35,017,726 shares of common stock at June 30, 2019 and 31,943,599 shares at June 30, 2018		(1,541,499)	(1,466,499)	(1,366,499)	(1,316,499)
Total stockholders' equity		357,028	363,937	404,862	407,927	$ 286,243	$ 454,803
Total liabilities and stockholders' equity		$ 851,044	$ 864,823	$ 852,045	$ 852,843

CONSOLIDATED BALANCE SHEETS (Parenthetical) - $ / shares	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018
Statement of Financial Position [Abstract]
Series D redeemable convertible preferred stock, par value (in dollars per share)	$ 0.10	$ 0.10	$ 0.10	$ 0.10	$ 0.10
Series D redeemable convertible preferred stock, authorized	3,636	3,636	3,636	3,636	3,636
Series D redeemable convertible preferred stock, issued	0	0	0	0	0
Series D redeemable convertible preferred stock, outstanding	0	0	0	0	0
Common stock, par value (in dollars per share)	$ 0.10	$ 0.10	$ 0.10	$ 0.10	$ 0.10
Common stock, authorized	210,000,000	210,000,000	210,000,000	210,000,000	210,000,000
Common stock, issued	103,642,292	103,478,590	103,395,683	103,279,138	103,130,300
Common stock, outstanding	68,624,566	69,108,515	69,803,177	70,862,163	71,186,701
Treasury stock, shares	35,017,726	34,370,075	33,592,506	32,416,975	31,943,599

CONSOLIDATED STATEMENTS OF STOCKHOLDERS' (DEFICIT) EQUITY - USD ($) $ in Thousands	Total	Common Stock	Additional Paid-in Capital	Retained (Deficit) Earnings	Accumulated Other Comprehensive Income	Treasury Stock
Retained earnings \| Adjustments for Topic 606	$ 529,837
Balance at Jun. 30, 2016	(75,034)	$ 10,203	$ 659,287	$ (5,676)	$ 2,651	$ (741,499)
Balance (Accounting Standards Update 2014-09 (Topic 606) [Member]) at Jun. 30, 2016	454,803	$ 10,203	659,287	524,161	2,651	$ (741,499)
Balance (in shares) at Jun. 30, 2016		102,031,960				21,854,010
Balance (in shares) (Accounting Standards Update 2014-09 (Topic 606) [Member]) at Jun. 30, 2016		102,031,960				21,854,010
Comprehensive income (loss):
Net income	162,196
Net income \| Adjustments for Topic 606	17,190
Net income \| Accounting Standards Update 2014-09 (Topic 606) [Member]	179,386			179,386
Other comprehensive loss \| Accounting Standards Update 2014-09 (Topic 606) [Member]	(1,192)				(1,192)
Exercise of stock options \| Accounting Standards Update 2014-09 (Topic 606) [Member]	9,273	$ 34	9,239
Exercise of stock options (in shares) \| Accounting Standards Update 2014-09 (Topic 606) [Member]		332,937
Issuance of restricted stock units and net share settlement related to withholding taxes \| Accounting Standards Update 2014-09 (Topic 606) [Member]	(5,792)	$ 20	(5,812)
Issuance of restricted stock units and net share settlement related to withholding taxes (in shares) \| Accounting Standards Update 2014-09 (Topic 606) [Member]		202,232
Repurchase of common stock	(275,000)
Repurchase of common stock \| Accounting Standards Update 2014-09 (Topic 606) [Member]	$ (375,000)					$ (375,000)
Repurchase of common stock (in shares)	5,185,257
Repurchase of common stock (in shares) \| Accounting Standards Update 2014-09 (Topic 606) [Member]						7,291,966
Stock-based compensation \| Accounting Standards Update 2014-09 (Topic 606) [Member]	$ 18,800		18,800
Excess tax benefits from stock-based compensation \| Accounting Standards Update 2014-09 (Topic 606) [Member]	5,965		5,965
Balance (Accounting Standards Update 2014-09 (Topic 606) [Member]) at Jun. 30, 2017	286,243	$ 10,257	687,479	703,547	1,459	$ (1,116,499)
Balance (in shares) (Accounting Standards Update 2014-09 (Topic 606) [Member]) at Jun. 30, 2017		102,567,129				29,145,976
Comprehensive income (loss):
Net income	148,688
Net income \| Adjustments for Topic 606	145,015
Net income \| Accounting Standards Update 2014-09 (Topic 606) [Member]	293,703			293,703
Other comprehensive loss \| Accounting Standards Update 2014-09 (Topic 606) [Member]	(71)				(71)
Exercise of stock options \| Accounting Standards Update 2014-09 (Topic 606) [Member]	13,431	$ 36	13,395
Exercise of stock options (in shares) \| Accounting Standards Update 2014-09 (Topic 606) [Member]		362,515
Issuance of restricted stock units and net share settlement related to withholding taxes \| Accounting Standards Update 2014-09 (Topic 606) [Member]	(8,067)	$ 20	(8,087)
Issuance of restricted stock units and net share settlement related to withholding taxes (in shares) \| Accounting Standards Update 2014-09 (Topic 606) [Member]		200,656
Repurchase of common stock \| Accounting Standards Update 2014-09 (Topic 606) [Member]	$ (200,000)					$ (200,000)
Repurchase of common stock (in shares)	2,797,623
Repurchase of common stock (in shares) \| Accounting Standards Update 2014-09 (Topic 606) [Member]						2,797,623
Stock-based compensation \| Accounting Standards Update 2014-09 (Topic 606) [Member]	$ 22,688		22,688
Balance (Accounting Standards Update 2014-09 (Topic 606) [Member]) at Jun. 30, 2018	$ 407,927	$ 10,313	715,475	997,250	1,388	$ (1,316,499)
Balance (in shares) at Jun. 30, 2018	103,130,300
Balance (in shares) (Accounting Standards Update 2014-09 (Topic 606) [Member]) at Jun. 30, 2018		103,130,300				31,943,599
Retained earnings	$ 305,208
Retained earnings \| Adjustments for Topic 606	692,042
Retained earnings \| Accounting Standards Update 2014-09 (Topic 606) [Member]	997,250
Comprehensive income (loss):
Net income	38,066
Balance (Accounting Standards Update 2014-09 (Topic 606) [Member]) at Sep. 30, 2018	$ 404,862
Balance (in shares) at Sep. 30, 2018	103,279,138
Balance (Accounting Standards Update 2014-09 (Topic 606) [Member]) at Jun. 30, 2018	$ 407,927	$ 10,313	715,475	997,250	1,388	$ (1,316,499)
Balance (in shares) at Jun. 30, 2018	103,130,300
Balance (in shares) (Accounting Standards Update 2014-09 (Topic 606) [Member]) at Jun. 30, 2018		103,130,300				31,943,599
Comprehensive income (loss):
Net income	$ 262,734			262,734
Other comprehensive loss	(1,052)				(1,052)
Exercise of stock options	10,830	$ 27	10,803
Exercise of stock options (in shares)		266,014
Issuance of restricted stock units and net share settlement related to withholding taxes	(14,727)	$ 25	(14,752)
Issuance of restricted stock units and net share settlement related to withholding taxes (in shares)		245,978
Repurchase of common stock	$ (300,000)					$ (300,000)
Repurchase of common stock (in shares)	3,074,127					3,074,127
Stock-based compensation	$ 27,573		27,573
Balance at Jun. 30, 2019	$ 393,285	$ 10,365	739,099	1,259,984	336	$ (1,616,499)
Balance (in shares) at Jun. 30, 2019	103,642,292	103,642,292				35,017,726
Retained earnings \| Accounting Standards Update 2014-09 (Topic 606) [Member]	$ 1,035,316
Balance (Accounting Standards Update 2014-09 (Topic 606) [Member]) at Sep. 30, 2018	$ 404,862
Balance (in shares) at Sep. 30, 2018	103,279,138
Comprehensive income (loss):
Net income	$ 59,217
Balance (Accounting Standards Update 2014-09 (Topic 606) [Member]) at Dec. 31, 2018	$ 363,937
Balance (in shares) at Dec. 31, 2018	103,395,683
Retained earnings \| Accounting Standards Update 2014-09 (Topic 606) [Member]	$ 1,094,533
Comprehensive income (loss):
Net income	61,587
Balance (Accounting Standards Update 2014-09 (Topic 606) [Member]) at Mar. 31, 2019	$ 357,028
Balance (in shares) at Mar. 31, 2019	103,478,590
Retained earnings \| Accounting Standards Update 2014-09 (Topic 606) [Member]	$ 1,156,120
Comprehensive income (loss):
Net income	103,865
Balance at Jun. 30, 2019	$ 393,285	$ 10,365	$ 739,099	$ 1,259,984	$ 336	$ (1,616,499)
Balance (in shares) at Jun. 30, 2019	103,642,292	103,642,292				35,017,726
Retained earnings	$ 1,259,984

CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2017
Cash flows from operating activities:
Net income	$ 262,734	$ 148,688	$ 162,196
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	8,143
Net foreign currency (gains) losses	(1,251)
Stock-based compensation	27,573
Deferred income taxes	(26,839)	3,193	(4,286)
Provision for bad debts	645
Tax benefits from stock-based compensation	0
Excess tax benefits from stock-based compensation	0
Other non-cash operating activities	429
Changes in assets and liabilities:
Accounts receivable	(6,626)	(4,327)	(7,480)
Contract assets	(59,322)	0	0
Contract costs	(4,482)	0	0
Prepaid expenses, prepaid income taxes, and other assets	(2,411)
Accounts payable, accrued expenses, income taxes payable and other liabilities	21,921
Deferred revenue	17,799	13,700	18,477
Net cash provided by operating activities	238,313	206,936	182,386
Cash flows from investing activities:
Purchases of marketable securities	0
Maturities of marketable securities	0
Purchase of property, equipment and leasehold improvements	(436)
Payments for business acquisitions, net of cash acquired	(6,098)
Payments for capitalized computer software costs	(1,131)
Net cash used in investing activities	(7,665)
Cash flows from financing activities:
Proceeds from issuances of shares of common stock	10,864
Repurchases of common stock	(299,214)
Payment of tax withholding obligations related to restricted stock	(14,477)
Deferred business acquisition payments	(1,700)
Excess tax benefits from stock-based compensation	0
Proceeds from credit agreement	50,000
Payments of credit agreement issuance costs	0
Net cash used in financing activities	(254,527)
Effect of exchange rate changes on cash and cash equivalents	(360)
Decrease in cash and cash equivalents	(24,239)
Cash and cash equivalents, beginning of year	96,165
Cash and cash equivalents, end of year	71,926	96,165
Supplemental disclosure of cash flow information:
Income tax paid, net	53,153
Interest paid	8,121
Supplemental disclosure of non-cash investing and financing activities:
Change in purchases of property, equipment and leasehold improvements included in accounts payable and accrued expenses	104
Change in repurchases of common stock included in accounts payable and accrued expenses	786
Accounting Standards Update 2014-09 (Topic 606) [Member]
Cash flows from operating activities:
Net income		293,703	179,386
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization		6,544	6,405
Net foreign currency (gains) losses		980	(1,036)
Stock-based compensation		22,688	18,800
Deferred income taxes		(110,308)	5,273
Provision for bad debts		1,418	199
Tax benefits from stock-based compensation		0	5,965
Excess tax benefits from stock-based compensation		0	(5,965)
Other non-cash operating activities		421	602
Changes in assets and liabilities:
Accounts receivable		846	(8,164)
Contract assets		3,640	(4,327)
Contract costs		(617)	(203)
Prepaid expenses, prepaid income taxes, and other assets		3,821	(2,421)
Accounts payable, accrued expenses, income taxes payable and other liabilities		1,156	(9,070)
Deferred revenue		(17,356)	(3,058)
Net cash provided by operating activities		206,936	182,386
Cash flows from investing activities:
Purchases of marketable securities		0	(683,748)
Maturities of marketable securities		0	686,346
Purchase of property, equipment and leasehold improvements		(331)	(2,720)
Payments for business acquisitions, net of cash acquired		(33,700)	(36,171)
Payments for capitalized computer software costs		(329)	(405)
Net cash used in investing activities		(34,360)	(36,698)
Cash flows from financing activities:
Proceeds from issuances of shares of common stock		13,466	9,273
Repurchases of common stock		(205,049)	(371,491)
Payment of tax withholding obligations related to restricted stock		(7,896)	(5,764)
Deferred business acquisition payments		(8,649)	0
Excess tax benefits from stock-based compensation		0	5,965
Proceeds from credit agreement		30,000	0
Payments of credit agreement issuance costs		(351)	0
Net cash used in financing activities		(178,479)	(362,017)
Effect of exchange rate changes on cash and cash equivalents		114	(53)
Decrease in cash and cash equivalents		(5,789)	(216,382)
Cash and cash equivalents, beginning of year	$ 96,165	101,954	318,336
Cash and cash equivalents, end of year		96,165	101,954
Supplemental disclosure of cash flow information:
Income tax paid, net		50,557	65,536
Interest paid		5,038	3,444
Supplemental disclosure of non-cash investing and financing activities:
Change in purchases of property, equipment and leasehold improvements included in accounts payable and accrued expenses		(61)	(47)
Change in repurchases of common stock included in accounts payable and accrued expenses		$ (5,049)	$ 3,509

Operations	12 Months Ended
Operations	Jun. 30, 2019
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Operations	Operations Aspen Technology, Inc., together with its subsidiaries, is a leading global supplier of asset optimization solutions that optimize asset design, operations and maintenance lifecycle in complex, industrial environments. Our aspenONE software and related services have been developed specifically for companies in the process and other capital-intensive industries such as energy, chemicals, engineering and construction, as well as pharmaceuticals, transportation, power, metals and mining, pulp and paper, and consumer packaged goods. Customers use our solutions to improve their competitiveness and profitability by increasing throughput, energy efficiency, and production, reducing unplanned downtime, enhancing capital efficiency, and decreasing working capital requirements over the entire asset lifecycle to support operational excellence. We operate globally in 32 countries as of June 30, 2019.

Significant Accounting Policies	12 Months Ended
Significant Accounting Policies	Jun. 30, 2019
Accounting Policies [Abstract]
Significant Accounting Policies	Significant Accounting Policies (a) Principles of Consolidation The accompanying consolidated financial statements include the accounts of Aspen Technology, Inc. and our wholly owned subsidiaries. All intercompany balances and transactions have been eliminated in consolidation. Restatement In connection with the restatement of the fiscal 2019 unaudited quarterly financial statements described in Note 19, "Quarterly Financial Data (Unaudited)," to our Consolidated Financial Statements, we have restated the adjusted June 30, 2018 balance sheet as previously presented in such quarterly financial statements. Refer to Note 19 for further information. Reclassifications Certain line items in prior period financial statements have been reclassified to conform to currently reported presentations. (b) Management Estimates The preparation of financial statements in conformity with accounting principles generally accepted in the United States of America requires management to make estimates and assumptions. These estimates and assumptions affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenue and expenses during the reporting period. Actual results could differ from those estimates. (c) Cash and Cash Equivalents Cash and cash equivalents consist of short-term money market instruments. (d) Computer Software Development Costs Certain computer software development costs are capitalized in the accompanying consolidated balance sheets. Capitalization of computer software development costs begins upon establishing technological feasibility defined as meeting specifications determined by the program design. Amortization of capitalized computer software development costs is provided on a product-by-product basis using the greater of (a) the amount computed using the ratio that current gross revenue for a product bears to total of current and anticipated future gross revenue for that product or (b) the straight-line method, beginning upon commercial release of the product, and continuing over the remaining estimated economic life of the product, not to exceed three years. Total computer software costs capitalized were $1.1 million, $0.4 million and $0.4 million during the years ended June 30, 2019, 2018 and 2017, respectively. Total amortization expense charged to operations was approximately $0.5 million, $0.4 million and $0.5 million for the years ended June 30, 2019, 2018 and 2017, respectively. Computer software development accumulated amortization totaled $75.1 million and $74.7 million as of June 30, 2019 and 2018, respectively. Weighted average remaining useful life of computer software development costs was 2.5 years and 1.0 years at June 30, 2019 and 2018, respectively. At each balance sheet date, we evaluate the unamortized capitalized software costs for potential impairment by comparing the balance to the net realizable value of the products. During the years ending June 30, 2019, 2018 and 2017, our computer software development costs were not considered impaired and as such, we did not recognize impairment losses during the periods then ended. (e) Foreign Currency Translation The determination of the functional currency of subsidiaries is based on the subsidiaries' financial and operational environment. Gains and losses from foreign currency translation related to entities whose functional currency is not our reporting currency are credited or charged to accumulated other comprehensive income included in stockholders' equity in the consolidated balance sheets. In all instances, foreign currency transaction and remeasurement gains or losses are credited or charged to the consolidated statements of operations as incurred as a component of other income (expense), net. Net foreign currency transaction and remeasurement gains were $0.7 million in fiscal 2019, losses were $(0.8) million in fiscal 2018, and gains were $0.6 million in fiscal 2017. (f) Concentration of Credit Risk Financial instruments that potentially subject us to concentrations of credit risk are principally cash and cash equivalents and accounts receivable. Our cash is held in financial institutions and our cash equivalents are invested in money market mutual funds that we believe to be of high credit quality. Concentration of credit risk with respect to receivables is limited to certain customers to which we make substantial sales. To reduce risk, we assess the financial strength of our customers. We do not require collateral or other security in support of our receivables. As of June 30, 2019, we had no customer receivable balances that individually represented 10% or more of our net accounts receivable. As of June 30, 2018, we had one customer receivable balance that represented approximately 12% of our total receivables, and was collected subsequent to June 30, 2018. (g) Computer Software Developed for Internal Use and Long-Lived Assets Computer Software Developed for Internal Use: Computer software developed for internal use is capitalized in accordance with ASC Topic 350-40, Intangibles Goodwill and Other—Internal Use Software. We capitalize costs incurred to develop internal-use software during the application development stage after determining software technological requirements and obtaining management approval for funding projects probable of completion. In fiscal 2019, 2018 and 2017, there were no capitalized direct labor costs associated with our development of software for internal use. Impairment of Long-Lived Assets: We evaluate our long-lived assets, which include finite-lived intangible assets, property and leasehold improvements for impairment as events and circumstances indicate that the carrying amount of an asset or a group of assets may not be recoverable. We assess the recoverability of the asset or a group of assets based on the undiscounted future cash flows the asset is expected to generate, and recognize an impairment loss when estimated undiscounted future cash flows expected to result from the use of the asset are less than its carrying value. If an asset or a group of assets are deemed to be impaired, the amount of the impairment loss, if any, represents the excess of the asset's or a group of assets' carrying value compared to their estimated fair values. (h) Comprehensive Income Comprehensive income is defined as the change in equity of a business enterprise during a period from transactions and other events and circumstances from non-owner sources. Comprehensive income and its components for fiscal 2019, 2018 and 2017 are disclosed in the accompanying consolidated statements of comprehensive income. As of June 30, 2019 and 2018, accumulated other comprehensive income is comprised of foreign translation adjustments of $0.3 million and $1.4 million, respectively. (i) Accounting for Stock-Based Compensation Stock-based compensation cost is measured at the grant date based on the fair value of the award and is recognized as expense over the vesting period. (j) Income Taxes Deferred income taxes are recognized based on temporary differences between the financial statement and tax bases of assets and liabilities. Deferred tax assets and liabilities are measured using the statutory tax rates and laws expected to apply to taxable income in the years in which the temporary differences are expected to reverse. Valuation allowances are provided against net deferred tax assets if, based upon the available evidence, it is more likely than not that some or all of the deferred tax assets will not be realized. The ultimate realization of deferred tax assets is dependent upon the generation of future taxable income and the timing of the temporary differences becoming deductible. Management considers, among other available information, scheduled reversals of deferred tax liabilities, projected future taxable income, limitations of availability of net operating loss carryforwards, and other matters in making this assessment. We do not provide deferred taxes on unremitted earnings of foreign subsidiaries since we intend to indefinitely reinvest either currently or sometime in the foreseeable future. Unrecognized provisions for taxes on undistributed earnings of foreign subsidiaries, which are considered indefinitely reinvested, are not material to our consolidated financial position or results of operations. We are continuously subject to examination by the IRS, as well as various state and foreign jurisdictions. The IRS and other taxing authorities may challenge certain deductions and credits reported by us on our income tax returns. In accordance with provisions of ASC Topic 740, Income Taxes (ASC 740), an entity should recognize a tax benefit when it is more-likely-than-not, based on the technical merits, that the position would be sustained upon examination by a taxing authority. The amount to be recognized, if the more-likely-than-not threshold was passed, should be measured as the largest amount of tax benefit that is greater than 50 percent likely of being realized upon ultimate settlement with a taxing authority that has full knowledge of all relevant information. Furthermore, any change in the recognition, de-recognition or measurement of a tax position should be recorded in the period in which the change occurs. We account for interest and penalties related to uncertain tax positions as part of the provision for income taxes. (k) Loss Contingencies We accrue estimated liabilities for loss contingencies arising from claims, assessments, litigation and other sources when it is probable that a liability has been incurred and the amount of the claim assessment or damages can be reasonably estimated. We believe that we have sufficient accruals to cover any obligations resulting from claims, assessments or litigation that have met these criteria. (l) Advertising Costs Advertising costs are expensed as incurred and are classified as sales and marketing expenses. We incurred advertising expenses of $4.4 million, $3.2 million and $3.2 million during fiscal 2019, 2018 and 2017, respectively. (m) Research and Development Expense We charge research and development expenditures to expense as the costs are incurred. Research and development expenses consist primarily of personnel expenses related to the creation of new products, enhancements and engineering changes to existing products and costs of acquired technology prior to establishing technological feasibility. During fiscal 2017, we acquired certain technologies for $2.3 million. At the time we acquired the technology, the project to develop a commercially available product did not meet the definition of having reached technological feasibility and as such, the entire cost of the acquired technology was expensed as research and development expense. (n) New Accounting Pronouncements Adopted in Fiscal 2019 In May 2014, the FASB issued Topic 606, which supersedes the revenue recognition requirements in Revenue Recognition (Topic 605), and requires entities to recognize revenue when they transfer promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. Under the new guidance, an entity is required to evaluate revenue recognition through a five-step process. In applying the principles of Topic 606, more judgment and estimates are required within the revenue recognition process than were required under previous U.S. GAAP, including identifying performance obligations in the contract, estimating the amount of variable consideration to include in the transaction price, and allocating the transaction price to each separate performance obligation. We adopted Topic 606 effective July 1, 2018 using the full retrospective method, which required us to adjust the prior periods presented. The adoption of Topic 606 impacted the timing of the license portion of the revenue recognized from our term contracts. Under the new standard, for arrangements that include term-based software licenses bundled with maintenance and support, we are now required to recognize as revenue a portion of the arrangement fee upon delivery of the software license. We recognize as revenue a portion of the arrangement fee related to maintenance and support, professional services, and training over time as the services are provided. Additionally, under the new standard, we capitalize certain direct and incremental commission costs to obtain a contract and amortize such costs over the expected period of benefit, rather than expensing them as incurred in the period that the commissions are earned. See Note 3, "Revenue from Contracts with Customers," to our Consolidated Financial Statements for more information on our accounting policies as a result of the adoption of Topic 606. In January 2017, the FASB issued ASU No. 2017-01, Business Combinations (Topic 805) - Clarifying the Definition of a Business. The amendment changes the definition of a business to assist entities in evaluating when a set of transferred assets and activities constitutes a business. We adopted ASU No. 2017-01 effective July 1, 2018. The adoption of ASU No. 2017-01 did not have a material effect on our consolidated financial statements or related disclosures. In March 2018, the FASB issued ASU No. 2018-05, Income Taxes (Topic 740) - Amendments to SEC Paragraphs Pursuant to SEC Staff Accounting Bulletin No. 118. The amendment provides guidance on accounting for the impact of the Tax Cuts and Jobs Act (the “Tax Act”) and allows entities to complete the accounting under ASC 740 within a one-year measurement period from the Tax Act enactment date. This standard is effective upon issuance. The Tax Act has several significant changes that impact all taxpayers, including a transition tax, which is a one-time tax charge on accumulated, undistributed foreign earnings. The calculation of accumulated foreign earnings requires an analysis of each foreign entity’s financial results going back to 1986. We have concluded that we will not be subject to the transition tax associated with our accumulated, undistributed foreign earnings. In August 2018, the FASB issued ASU 2018-15, Intangibles - Goodwill and Other - Internal-Use Software (Subtopic 350-40) - Customer’s Accounting for Implementation Costs Incurred in a Cloud Computing Arrangement that is a Service Contract. The amendment aligns the requirements for capitalizing implementation costs incurred in a hosting arrangement that is a service contract with the requirements for capitalizing implementation costs incurred to develop or obtain internal-use software (and hosting arrangements that include an internal use software license). The accounting for the service element of a hosting arrangement that is a service contract is not affected by the amendment. The ASU is effective for annual periods, including interim periods within those annual periods, beginning after December 15, 2019. We adopted ASU No. 2018-15 effective October 1, 2018. During fiscal 2019, $0.8 million of implementation costs were capitalized, and $0.1 million expensed, as a result of the adoption of ASU No. 2018-15. (o) Recently Issued Accounting Pronouncements In February 2016, the FASB issued ASU No. 2016-02, Leases (Topic 842). Under the amendment, lessees will be required to recognize virtually all of their leases on the balance sheet, by recording a right-of-use asset and lease liability. The ASU is effective for annual periods, including interim periods within those annual periods, beginning after December 15, 2018. Early adoption is permitted. We will adopt Topic 842 using the modified retrospective method effective July 1, 2019. We will elect the available practical expedients permitted under the transition guidance within the new standard, and will implement internal controls to enable the preparation of financial information upon adoption. The most significant impact will be the recognition of right-of use (ROU) assets and lease liabilities for operating leases, while our accounting for capital leases will remain substantially unchanged. Based upon the work performed to date, we expect the adoption of Topic 842 will result in the recognition of a right-of-use asset, and a corresponding lease liability, of approximately $32.0 million to $36.0 million on the consolidated balance sheets. The difference between the assets and liabilities will be attributable to the reclassification of certain existing lease-related assets and liabilities. Where applicable, a corresponding deferred tax asset and liability will be recorded related to the right-of-use asset and lease liability. Topic 842 is not expected to materially impact the consolidated statements of operations or consolidated statements of cash flows.

Revenue from Contracts with Customers (Notes)

12 Months Ended

Jun. 30, 2019

Revenue from Contracts with Customers [Abstract]

Revenue from Contract with Customer [Text Block]

Revenue from Contracts with Customers

In accordance with Topic 606, we account for a customer contract when both parties have approved the contract and are committed to perform their respective obligations, each party’s rights can be identified, payment terms can be identified, the contract has commercial substance, and it is probable that we will collect substantially all of the consideration to which we are entitled. Revenue is recognized when, or as, performance obligations are satisfied by transferring control of a promised product or service to a customer.

Nature of Products and Services

We generate revenue from the following sources: (1) License revenue; (2) Maintenance revenue; and (3) Services and other revenue. We sell our software products to end users primarily under fixed-term licenses. We license our software products primarily through a subscription offering which we refer to as our aspenONE licensing model, which includes software maintenance and support, known as our Premier Plus SMS offering, for the entire term. Our aspenONE products are organized into three suites: 1) engineering; 2) manufacturing and supply chain; and 3) asset performance management. The aspenONE licensing model provides customers with access to all of the products within the aspenONE suite(s) they license. We refer to these arrangements as token arrangements. Tokens are fixed units of measure. The amount of software usage is limited by the number of tokens purchased by the customer.

We also license our software through point product term arrangements, which include our Premier Plus SMS offering for the entire term.

We determine revenue recognition through the following steps:

• Identification of the contract, or contracts, with a customer;

• Identification of the performance obligations in the contract;

• Determination of the transaction price;

• Allocation of the transaction price to the performance obligations in the contract; and

• Recognition of revenue when, or as, we satisfy a performance obligation.

Term-based Arrangements: Term-based arrangements consist of on-premise term licenses as well as maintenance.

License

License revenue consists primarily of product and related revenue from our aspenONE licensing model and point product arrangements.

When a customer elects to license our products under our aspenONE licensing model, the customer receives, for the term of the arrangement, the right to all software products in the licensed aspenONE software suite. When a customer elects to license point products, the customer receives, for the term of the arrangement, the right to license specified products in the licensed aspenONE software suite. Revenue from initial product licenses is recognized upfront upon delivery.

Maintenance

When a customer elects to license our products under our aspenONE licensing model, our Premier Plus SMS offering is included for the entire term of the arrangement and the customer receives, for the term of the arrangement, the right to any updates that may be introduced into the licensed aspenONE software suite. When a customer elects to license point products, our Premier Plus SMS offering is included for the entire term of the arrangement and the customer receives, for the term of the arrangement, the right to any updates that may be introduced related to the specified products licensed. Maintenance represents a stand-ready obligation and, due to our obligation to provide unspecified future software updates on a when-and-if available basis as well as telephone support services, we are required to recognize revenue ratably over the term of the arrangement.

Services and Other Revenue

Professional Services Revenue

Professional services are provided to customers on a time-and-materials ("T&M") or fixed-price basis. The obligation to provide professional services is generally satisfied over time, with the customer simultaneously receiving and consuming the benefits as we satisfy our performance obligation. For professional services, revenue is recognized by measuring progress toward the completion of our obligations. We recognize professional services fees for our T&M contracts based upon hours worked and contractually agreed-upon hourly rates. Revenue from fixed-price engagements is recognized using the proportional performance method based on the ratio of costs incurred to the total estimated project costs. The use of the proportional performance method is dependent upon our ability to reliably estimate the costs to complete a project. We use historical experience as a basis for future estimates to complete current projects. Additionally, we believe that costs are the best available measure of performance. Out-of-pocket expenses which are reimbursed by customers are recorded as revenue.

Training Revenue

We provide training services to our customers, including on-site, Internet-based, public and customized training. The obligation to provide training services is generally satisfied over time, with the customer simultaneously receiving and consuming the benefits as we satisfy our performance obligation. Revenue is recognized in the period in which the services are performed.

Contracts with Multiple Performance Obligations

Our contracts generally contain more than one of the products and services listed above, each of which is separately accounted for as a distinct performance obligation.

Allocation of consideration: We allocate total contract consideration to each distinct performance obligation in an arrangement on a relative standalone selling price basis. The standalone selling price reflects the price we would charge for a specific product or service if it was sold separately in similar circumstances and to similar customers.

If the arrangement contains professional services and other products or services, we allocate to the professional service obligation a portion of the total contract consideration based on the standalone selling price of professional services that is observed from consistently priced standalone sales.

The standalone selling price for term licenses, which are always sold with maintenance, is the price for the combined license and maintenance bundle. The amount assigned to the license and maintenance bundle is separated into license and maintenance amounts using the respective standalone selling prices represented by the value relationship between the software license and maintenance.

When two or more contracts are entered into at or near the same time with the same customer, we evaluate the facts and circumstances associated with the negotiation of those contracts. Where the contracts are negotiated as a package, we will

account for them as a single arrangement and allocate the consideration for the combined contracts among the performance obligations accordingly.

Standalone selling price: When available, we use directly observable transactions to determine the standalone selling prices for performance obligations. Generally, directly observable data is not available for term licenses and maintenance. When term licenses are sold together with maintenance in a bundled arrangement, we estimate a standalone selling price for these distinct performance obligations using relevant information, including our overall pricing objectives and strategies and historical pricing data, and taking into consideration market conditions and other factors.

Other policies and judgments

Payment terms and conditions vary by contract type, although terms generally include a requirement of payment annually over the term of the license arrangement. Therefore, we generally receive payment from a customer after the performance obligation related to the license has been satisfied, and therefore, our contracts generally contain a significant financing component. The significant financing component is calculated utilizing an interest rate that derives the net present value of the performance obligations delivered on an upfront basis based on the allocation of consideration. We have instituted a customer portfolio approach in assigning interest rates. The rates are determined at contract inception and are based on the credit characteristics of the customers within each portfolio.

Contract modifications

We sometimes enter into agreements to modify previously executed contracts, which constitute contract modifications. We assess each of these contract modifications to determine (i) if the additional products and services are distinct from the products and services in the original arrangement; and (ii) if the amount of consideration expected for the added products and services reflects the stand-alone selling price of those products and services, as adjusted for contract-specific circumstances. A contract modification meeting both criteria is accounted for as a separate contract. A contract modification not meeting both criteria is considered a change to the original contract and is accounted for on either (i) a prospective basis as a termination of the existing contract and the creation of a new contract; or (ii) a cumulative catch-up basis. Generally, our contract modifications meet both criteria and are accounted for as a separate contract, as adjusted for contract-specific circumstances.

Disaggregation of Revenue

We disaggregate our revenue by region, type of performance obligation, timing of revenue recognition, and segment as follows:



	Year Ended June 30,
	2019		2018		2017
			As Adjusted		As Adjusted
	(Dollars in Thousands)
Revenue by region:
United States	$	219,967	$	207,266	$	158,761
Europe	155,543		126,862		166,133
Other (1)	222,835		184,731		169,533
	$	598,345	$	518,859	$	494,427

Revenue by type of performance obligation:
License	$	404,122	$	326,549	$	307,259
Maintenance	165,436		161,065		157,012
Services and other	28,787		31,245		30,156
	$	598,345	$	518,859	$	494,427

Revenue by segment:
Subscription and software	$	569,558	$	487,614	$	464,271
Services and other	28,787		31,245		30,156
	$	598,345	$	518,859	$	494,427

____________________________________________


(1)	Other consists primarily of Asia Pacific, Canada, Latin America and the Middle East.

Contract Balances

The difference in the opening and closing balances of our contract assets and deferred revenue primarily results from the timing difference between our performance and the customer’s payment. We fulfill our obligations under a contract with a customer by transferring products and services in exchange for consideration from the customer. We recognize a contract asset when we transfer products or services to a customer and the right to consideration is conditional on something other than the passage of time. Accounts receivable are recorded when the customer has been billed or the right to consideration is unconditional. We recognize deferred revenue when we have received consideration or an amount of consideration is due from the customer and we have a future obligation to transfer products or services.

Our contract assets and deferred revenue were as follows as of June 30, 2019 and 2018:



	June 30, 2019			June 30, 2018
				As Restated
	(Dollars in Thousands)
Contract assets	$	619,703		$	557,377
Deferred revenue	(44,891		)	(27,504		)
	$	574,812		$	529,873

Contract assets and deferred revenue are presented net at the contract level for each reporting period.

The change in deferred revenue during fiscal 2019 was primarily due to an increase in new billings in advance of revenue recognition, partially offset by $14.0 million of revenue recognized that was included in deferred revenue at June 30, 2018.

Contract Costs

We pay commissions for new product sales as well as for renewals of existing contracts. Commissions paid to obtain renewal contracts are not commensurate with the commissions paid for new product sales and therefore, a portion of the commissions paid for new contracts relate to future renewals.

We account for new product sales commissions using a portfolio approach and allocate the cost of commissions in proportion to the allocation of transaction price of license and maintenance performance obligations, including assumed renewals. Commissions allocated to the license and license renewal components are expensed at the time the license revenue is recognized. Commissions allocated to maintenance are capitalized and amortized on a straight-line basis over a period of four years to eight years for new contracts, reflecting our estimate of the expected period that we will benefit from those commissions.

Amortization of capitalized contract costs is included in sales and marketing expenses in our Consolidated Statement of Operations.

Transaction Price Allocated to Remaining Performance Obligations

The following table includes the aggregate amount of the transaction price allocated as of June 30, 2019 to the performance obligations that are unsatisfied (or partially unsatisfied) at the end of the reporting period:



	Year Ended June 30,
	2020		2021		2022		2023		2024		Thereafter
	(Dollars in Thousands)
License	$	47,869	$	31,944	$	9,820	$	3,575	$	1,559	$	721
Maintenance	193,348		144,734		101,127		64,286		37,613		14,847
Services and other	43,679		646		594		345		74		16

Impact to Prior Period Information

The following table presents the effect of the adoption of Topic 606 on select consolidated statements of operations line items for fiscal 2018 and 2017:



	Year Ended June 30, 2018
	As Previously Reported		Adjustments			As Adjusted
	(Dollars in Thousands, Except per Share Data)
Consolidated Statements of Operations:
License revenue	$	—	$	326,549		$	326,549
Maintenance revenue	—		161,065			161,065
Subscription and software revenue	471,041		(471,041		)	—
Services and other revenue	28,473		2,772			31,245
Total revenue	499,514		19,345			518,859
Gross profit	448,870		19,345			468,215
Selling and marketing expense	101,077		(1,340		)	99,737
General and administrative expense	56,076		11,105			67,181
Total operating expenses	239,229		9,765			248,994
Income from operations	209,641		9,580			219,221
Interest income	231		24,723			24,954
Provision for (benefit from) income taxes	54,655		(110,712		)	(56,057		)
Net income	$	148,688	$	145,015		$	293,703
Net income per common share:
Basic	$	2.06				$	4.07
Diluted	$	2.04				$	4.03
Weighted average shares outstanding:
Basic	72,140					72,140
Diluted	72,956					72,956



	Year Ended June 30, 2017
	As Previously Reported		Adjustments			As Adjusted
	(Dollars in Thousands, Except per Share Data)
Consolidated Statements of Operations:
License revenue	$	—	$	307,259		$	307,259
Maintenance revenue	—		157,012			157,012
Subscription and software revenue	453,512		(453,512		)	—
Services and other revenue	29,430		726			30,156
Total revenue	482,942		11,485			494,427
Gross profit	435,476		11,485			446,961
Selling and marketing expense	92,633		(656		)	91,977
General and administrative expense	51,297		7,438			58,735
Total operating expenses	223,460		6,782			230,242
Income from operations	212,016		4,703			216,719
Interest income	808		22,134			22,942
Provision for income taxes	48,150		9,647			57,797
Net income	$	162,196	$	17,190		$	179,386
Net income per common share:
Basic	$	2.12				$	2.35
Diluted	$	2.11				$	2.33
Weighted average shares outstanding:
Basic	76,491					76,491
Diluted	76,978					76,978

The following table presents the effect of the adoption of Topic 606 on select consolidated balance sheet line items as of June 30, 2018:



	June 30, 2018
	As Previously Reported		Adjustments			As Restated
	(Dollars in Thousands)
Consolidated Balance Sheets:
ASSETS
Current contract assets	$	—	$	237,537		$	237,537
Contract costs	—		20,500			20,500
Accounts receivable, net	21,910		19,900			41,810
Non-current contract assets	—		319,840			319,840
Non-current deferred tax assets	11,090		(9,858		)	1,232
Total assets	264,924		587,919			852,843
LIABILITIES AND STOCKHOLDERS’ EQUITY
Current deferred revenue	286,845		(271,695		)	15,150
Non-current deferred revenue	28,259		(15,905		)	12,354
Deferred income taxes	—		184,901			184,901
Other non-current liabilities	18,492		(1,424		)	17,068
Retained earnings	305,208		692,042			997,250
Total liabilities and stockholders’ equity	$	264,924	$	587,919		$	852,843

The adoption of Topic 606 had no impact on our total cash flows or net cash provided by operating activities. The impacts of adoption resulted in offsetting shifts in cash flows throughout the components of net income and various changes in working capital balances. The following table presents the effect of the adoption of Topic 606 on select consolidated statement of cash flows line items for fiscal 2018 and 2017:



	Year Ended June 30, 2018
	As Previously Reported		Adjustments			As Adjusted
	(Dollars in Thousands)
Consolidated Statements of Cash Flows:
Cash flows from operating activities:
Net income	$	148,688	$	145,015		$	293,703
Adjustments to reconcile net income to net cash provided by operating activities:
Deferred income taxes	3,193		(113,501		)	(110,308		)
Changes in assets and liabilities:
Contract assets	—		3,640			3,640
Contract costs	—		(617		)	(617		)
Accounts receivable	4,327		(3,481		)	846
Deferred revenue	13,700		(31,056		)	(17,356		)
Net cash provided by operating activities	$	206,936	$	—		$	206,936



	Year Ended June 30, 2017
	As Previously Reported			Adjustments			As Adjusted
	(Dollars in Thousands)
Consolidated Statements of Cash Flows:
Cash flows from operating activities:
Net income	$	162,196		$	17,190		$	179,386
Adjustments to reconcile net income to net cash provided by operating activities:
Deferred income taxes	(4,286		)	9,559			5,273
Changes in assets and liabilities:
Contract assets	—			(4,327		)	(4,327		)
Contract costs	—			(203		)	(203		)
Accounts receivable	(7,480		)	(684		)	(8,164		)
Deferred revenue	18,477			(21,535		)	(3,058		)
Net cash provided by operating activities	$	182,386		$	—		$	182,386

As referenced in Item 9A, "Controls and Procedures," the previously issued unaudited consolidated financial statements in our quarterly reports on Form 10-Q for the quarters ended September 30, 2018, December 31, 2018 and March 31, 2019 have been restated in this Form 10-K. See Note 19, "Quarterly Financial Data (Unaudited)," to our Consolidated Financial Statements for the restated financial statements.

Fair Value (Notes)	12 Months Ended
Fair Value (Notes)	Jun. 30, 2019
Fair Value [Abstract]
Fair Value Disclosures [Text Block]	Fair Value We determine fair value by utilizing a fair value hierarchy that ranks the quality and reliability of the information used in its determination. Fair values determined using “Level 1 inputs” utilize unadjusted quoted prices in active markets for identical assets or liabilities that we have the ability to access. Fair values determined using “Level 2 inputs” utilize data points that are observable, such as quoted prices, interest rates and yield curves for similar assets and liabilities. Cash equivalents of $1.0 million and $5.0 million as of June 30, 2019 and June 30, 2018, respectively, were reported at fair value utilizing quoted market prices in identical markets, or “Level 1 inputs.” Our cash equivalents consist of short-term money market instruments. Financial instruments not measured or recorded at fair value in the accompanying unaudited consolidated financial statements consist of accounts receivable, accounts payable and accrued liabilities. The estimated fair value of these financial instruments approximates their carrying value. The estimated fair value of the borrowings under the Credit Agreement (described below in Note 11, Credit Agreement) approximates its carrying value due to the floating interest rate.

- Definition

The entire disclosure for the fair value of financial instruments (as defined), including financial assets and financial liabilities (collectively, as defined), and the measurements of those instruments as well as disclosures related to the fair value of non-financial assets and liabilities. Such disclosures about the financial instruments, assets, and liabilities would include: (1) the fair value of the required items together with their carrying amounts (as appropriate); (2) for items for which it is not practicable to estimate fair value, disclosure would include: (a) information pertinent to estimating fair value (including, carrying amount, effective interest rate, and maturity, and (b) the reasons why it is not practicable to estimate fair value; (3) significant concentrations of credit risk including: (a) information about the activity, region, or economic characteristics identifying a concentration, (b) the maximum amount of loss the entity is exposed to based on the gross fair value of the related item, (c) policy for requiring collateral or other security and information as to accessing such collateral or security, and (d) the nature and brief description of such collateral or security; (4) quantitative information about market risks and how such risks are managed; (5) for items measured on both a recurring and nonrecurring basis information regarding the inputs used to develop the fair value measurement; and (6) for items presented in the financial statement for which fair value measurement is elected: (a) information necessary to understand the reasons for the election, (b) discussion of the effect of fair value changes on earnings, (c) a description of [similar groups] items for which the election is made and the relation thereof to the balance sheet, the aggregate carrying value of items included in the balance sheet that are not eligible for the election; (7) all other required (as defined) and desired information.

+ References + Details

Accounts Receivable (Notes)

12 Months Ended

Jun. 30, 2019

Fair Value [Abstract]

Financing Receivables [Text Block]

Accounts Receivable

Our accounts receivable, net of the related allowance for doubtful accounts, were as follows as of June 30, 2019 and 2018:



	June 30, 2019			June 30, 2018
				As Restated
	(Dollars in Thousands)
Accounts receivable, gross	$	51,133		$	44,513
Allowance for doubtful accounts	(3,349		)	(2,703		)
Accounts receivable, net	$	47,784		$	41,810

As of June 30, 2019, we had no customer receivable balances that individually represented 10% or more of our net accounts receivable. As of June 30, 2018, we had one customer receivable balance that represented approximately 12% of our total receivables, and was collected subsequent to June 30, 2018.

Property and Equipment

12 Months Ended

Jun. 30, 2019

Property, Plant and Equipment [Abstract]

Property and Equipment

Property, equipment and leasehold improvements in the accompanying consolidated balance sheets consist of the following:



	Year Ended June 30,
	2019			2018
	(Dollars in Thousands)
Property, equipment and leasehold improvements, at cost:
Computer equipment	$	6,642		$	8,344
Purchased software	22,793			24,225
Furniture & fixtures	6,794			6,850
Leasehold improvements	12,232			12,023
Property, equipment and leasehold improvements, at cost	48,461			51,442
Accumulated depreciation	(41,227		)	(41,636		)
Property, equipment and leasehold improvements, net	$	7,234		$	9,806

Property and equipment are stated at cost. We record depreciation using the straight-line method over their estimated useful lives, as follows:



Asset Classification	Estimated Useful Life
Computer equipment	3 years
Purchased software	3 - 5 years
Furniture and fixtures	3 - 10 years
Leasehold improvements	Life of lease or asset, whichever is shorter

During fiscal 2019 and 2018, we wrote off fully depreciated property, equipment and leasehold improvements that were no longer in use with gross book values of $3.5 million and less than $0.1 million, respectively.

Depreciation expense was $3.1 million, $3.9 million and $5.0 million for fiscal 2019, 2018 and 2017, respectively.

We account for asset retirement obligations in accordance with ASC Topic 410, Asset Retirement and Environmental Obligations. Our asset retirement obligations relate to leasehold improvements for leased properties. The balance of our asset retirement obligations was $0.9 million as of June 30, 2019 and 2018, respectively.

Acquisitions

12 Months Ended

Jun. 30, 2019

Business Combinations [Abstract]

Acquisitions

Apex Optimisation

On February 5, 2018, we completed the acquisition of all the outstanding shares of Apex Optimisation and affiliates (“Apex”), a provider of software which aligns Advanced Process Control with Planning and Scheduling to unify production optimization, for a total cash consideration of $23.0 million. The purchase price consisted of $18.4 million of cash paid at closing and an additional $4.6 million to be held back until February 2020 as security for certain representations, warranties, and obligations of the sellers. The holdback is recorded in accrued expenses and other current liabilities in our consolidated balance sheet.

An allocation of the purchase price is as follows:



	Amount
	(Dollars in Thousands)
Tangible assets acquired, net	$	360
Identifiable intangible assets:
Technology-related	4,500
Customer relationships	3,800
Goodwill	15,959
Deferred tax liabilities	(1,619		)
Total assets acquired, net	$	23,000

We used the relief from royalty and income approaches to derive the fair value of the technology-related and customer relationship intangible assets, respectively. The weighted-average discount rate (or rate of return) used to determine the value of the Apex intangible assets was 28% and the effective tax rate used was 21%. The technology-related and customer relationship intangible assets will each be amortized on a straight-line basis over their estimated useful lives of seven years.

The goodwill, which is not deductible for tax purposes, reflects the value of the assembled workforce and the company-specific synergies we expect to realize by selling Apex products and services to our existing customers. The results of operations of Apex have been included prospectively in our results of operations since the date of acquisition.

Sabisu Ltd.

On June 12, 2019, we completed the acquisition of all the outstanding shares of Argent & Waugh Limited and Sabisu Ltd. (“Sabisu”), a provider of a flexible enterprise visualization and workflow solution to deliver real-time decision support, for a total cash consideration of $7.6 million. The purchase price consisted of $6.1 million of cash paid at closing and an additional $1.5 million to be held back until June 2021 as security for certain representations, warranties, and obligations of the sellers. The holdback is recorded in other non-current liabilities in our consolidated balance sheet.

A preliminary allocation of the initial purchase price is as follows:



	Amount
	(Dollars in Thousands)
Tangible assets acquired, net	$	355
Identifiable intangible assets:
Technology-related	1,525
Customer relationships	1,525
Goodwill	4,783
Deferred tax liabilities	(564		)
Total assets acquired, net	$	7,624

Mnubo, Inc.

On July 12, 2019, we completed the acquisition of all the outstanding shares of Mnubo Inc. (“Mnubo”), a provider of purpose-built artificial intelligence and analytics infrastructure for the internet of things, for a total cash consideration of $78.0 million. We intend to account for the Mnubo acquisition as a business combination. The allocation of the purchase price is subject to the valuation of the net assets acquired.

Intangible Assets

12 Months Ended

Jun. 30, 2019

Goodwill and Intangible Assets Disclosure [Abstract]

Intangible Assets

We include in our amortizable intangible assets those intangible assets acquired in our business and asset acquisitions. We amortize acquired intangible assets with finite lives over their estimated economic lives, generally using the straight-line method. Each period, we evaluate the estimated remaining useful lives of acquired intangible assets to determine whether events or changes in circumstances warrant a revision to the remaining period of amortization. Acquired intangibles are removed from the accounts when fully amortized and no longer in use.

Intangible assets consist of the following as of June 30, 2019 and 2018:



	Gross Carrying Amount		Accumulated Amortization			Effect of Currency Translation			Net Carrying Amount
	(Dollars in Thousands)
June 30, 2019:
Technology and patents	$	37,168	$	(8,868	)	$	(118	)	$	28,182
Customer relationships	6,503		(1,039		)	(100		)	5,364
Non-compete agreements	553		(492		)	—			61
Total	$	44,224	$	(10,399	)	$	(218	)	$	33,607
June 30, 2018:
Technology and patents	$	35,898	$	(5,182	)	$	(254	)	$	30,462
Customer relationships	5,181		(377		)	(202		)	4,602
Non-compete agreements	553		(307		)	—			246
Total	$	41,632	$	(5,866	)	$	(456	)	$	35,310

Total amortization expense related to intangible assets amounted to $4.5 million, $2.2 million and $1.0 million in fiscal 2019, 2018 and 2017, respectively.

Future amortization expense as of June 30, 2019 is expected to be as follows:



Year Ended June 30,	Amortization Expense
	(Dollars in Thousands)
2020	$	5,120
2021	5,165
2022	5,104
2023	5,019
2024	4,326
Thereafter	8,873
Total	$	33,607

Goodwill

12 Months Ended

Jun. 30, 2019

Goodwill and Intangible Assets Disclosure [Abstract]

Goodwill

The changes in the carrying amount of goodwill for our subscription and software reporting unit during fiscal years ending June 30, 2019 and 2018 were as follows:



	Gross Carrying Amount		Accumulated Impairment Losses			Effect of Currency Translation			Net Carrying Amount
June 30, 2018:	$	142,316	$	(65,569	)	$	(1,157	)	$	75,590
Goodwill from acquisitions, net of adjustments	3,256		—			—			3,256
Foreign currency translation	—		—			(463		)	(463		)
June 30, 2019:	$	145,572	$	(65,569	)	$	(1,620	)	$	78,383

	Gross Carrying Amount		Accumulated Impairment Losses			Effect of Currency Translation			Net Carrying Amount
June 30, 2017:	$	116,833	$	(65,569	)	$	(16	)	$	51,248
Goodwill from acquisitions, net of adjustments	25,483		—			—			25,483
Foreign currency translation	—		—			(1,141		)	(1,141		)
June 30, 2018:	$	142,316	$	(65,569	)	$	(1,157	)	$	75,590

We test goodwill for impairment annually (or more often if impairment indicators arise), at the reporting unit level. We first assess qualitative factors to determine whether the existence of events or circumstances indicates that it is more likely than not that the fair value of a reporting unit is less than its carrying amount. If we determine based on this assessment that it is more likely than not that the fair value of a reporting unit is less than its carrying amount, we perform the goodwill impairment test. The first step requires us to determine the fair value of the reporting unit and compare it to the carrying amount, including goodwill, of such reporting unit. If the fair value exceeds the carrying amount, no impairment loss is recognized. However, if the carrying amount of the reporting unit exceeds its fair value, the goodwill of the unit is impaired.

Fair value of a reporting unit is determined using a combined weighted average of a market-based approach (utilizing fair value multiples of comparable publicly traded companies) and an income-based approach (utilizing discounted projected cash flows). In applying the income-based approach, we would be required to make assumptions about the amount and timing of future expected cash flows, growth rates and appropriate discount rates. The amount and timing of future cash flows would be based on our most recent long-term financial projections. The discount rate we would utilize would be determined using estimates of market participant risk-adjusted weighted-average costs of capital and reflect the risks associated with achieving future cash flows.

We have elected December 31st as the annual impairment assessment date and perform additional impairment tests if triggering events occur. We performed our annual impairment test for the subscription and software reporting unit as of December 31, 2018 and, based upon the results of our qualitative assessment, determined that it was not likely that its fair value was less than its carrying amount. As such, we did not recognize impairment losses as a result of our analysis. If an event occurs or circumstances change that would more likely than not reduce the fair value of a reporting unit below its carrying value, goodwill will be evaluated for impairment between annual tests. No triggering events indicating goodwill impairment occurred during fiscal 2019, 2018 and 2017.

Accrued Expenses and Other Liabilities

12 Months Ended

Jun. 30, 2019

Balance Sheet Related Disclosures [Abstract]

Accrued Expenses and Other Liabilities

Accrued expenses and other current liabilities in the accompanying consolidated balance sheets consist of the following:



	June 30, 2019		June 30, 2018
	(Dollars in Thousands)
Compensation-related	$	27,147	$	21,796
Deferred acquisition payments	4,600		1,700
Uncertain tax positions	3,751		—
Royalties and outside commissions	3,665		3,333
Share repurchases	2,432		1,646
Professional fees	3,053		1,695
Deferred rent	1,331		1,188
Other	8,615		8,157
Total accrued expenses and other current liabilities	$	54,594	$	39,515

Other non-current liabilities in the accompanying consolidated balance sheets consist of the following:



	June 30, 2019		June 30, 2018
			As Adjusted
	(Dollars in Thousands)
Deferred rent	$	5,187	$	6,442
Uncertain tax positions	2,274		4,510
Deferred acquisition payments	1,524		4,294
Asset retirement obligations	914		916
Other	482		906
Total other non-current liabilities	$	10,381	$	17,068

Credit Agreement	12 Months Ended
Credit Agreement	Jun. 30, 2019
Debt Disclosure [Abstract]
Credit Agreement	Credit Agreement On February 26, 2016, we entered into a $250.0 million Credit Agreement (the “Credit Agreement”) with JPMorgan Chase Bank, N.A., as administrative agent, Silicon Valley Bank, as syndication agent, and the lenders and other parties named therein (the “Lenders”). On August 9, 2017, we entered into an Amendment to increase the Credit Agreement to $350.0 million. The indebtedness evidenced by the Credit Agreement matures on February 26, 2021. Prior to the maturity of the Credit Agreement, any amounts borrowed may be repaid and, subject to the terms and conditions of the Credit Agreement, borrowed again in whole or in part without penalty. We had $220.0 million and $170.0 million in outstanding borrowings under the Credit Agreement as of June 30, 2019 and 2018, respectively. Borrowings under the Credit Agreement bear interest at a rate equal to either, at our option, the sum of (a) the highest of (1) the rate of interest publicly announced by JPMorgan Chase Bank, N.A. as its prime rate in effect, (2) the Federal Funds Effective Rate plus 0.5%, and (3) the one-month Adjusted LIBO Rate plus 1.0%, plus (b) a margin initially of 0.5% for the first full fiscal quarter ending after the date of the Credit Agreement and thereafter based on our Leverage Ratio; or the Adjusted LIBO Rate plus a margin initially of 1.5% for the first full fiscal quarter ending after the date of the Credit Agreement and thereafter based on our Leverage Ratio. We must also pay, on a quarterly basis, an unused commitment fee at a rate of between 0.2% and 0.3% per annum, based on our Leverage Ratio. The interest rates as of June 30, 2019 were 3.91% on $159.0 million of our outstanding borrowings and 3.94% on the remaining $61.0 million of our outstanding borrowings. All borrowings under the Credit Agreement are secured by liens on substantially all of our assets. The Credit Agreement contains affirmative and negative covenants customary for facilities of this type, including restrictions on: incurrence of additional debt; liens; fundamental changes; asset sales; restricted payments; and transactions with affiliates. The Credit Agreement contains financial covenants regarding maintenance as of the end of each fiscal quarter, commencing with the quarter ending June 30, 2016, of a maximum Leverage Ratio of 3.0 to 1.0 and a minimum Interest Coverage Ratio of 3.0 to 1.0. We were in compliance with all covenants as of June 30, 2019.

Stock-Based Compensation

12 Months Ended

Jun. 30, 2019

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Stock-Based Compensation

Stock Compensation Plans

In December 2016, the shareholders approved the establishment of the 2016 Omnibus Incentive Plan (the 2016 Plan), which provides for the issuance of a maximum of 6,000,000 shares of common stock. The 2016 Plan provides for the grant of incentive and nonqualified stock options, stock appreciation rights, restricted stock, restricted stock units, other stock-related awards, and performance awards that may be settled in cash, stock, or other property. As of June 30, 2019, there were 5,617,627 shares of common stock available for issuance subject to awards under the 2016 Plan.

In April 2010, the shareholders approved the establishment of the 2010 Equity Incentive Plan (the 2010 Plan), which provides for the issuance of a maximum of 7,000,000 shares of common stock. The 2010 Plan provides for the grant of incentive and nonqualified stock options, stock appreciation rights, restricted stock, restricted stock units, other stock-related awards, and performance awards that may be settled in cash, stock, or other property. As of June 30, 2019, there were 1,945,234 shares of common stock available for issuance subject to awards under the 2010 Plan.

Employee Stock Purchase Plan

On July 26, 2018, our Board of Directors approved the Aspen Technology, Inc. 2018 Employee Stock Purchase Plan (the "ESPP"), which provides for the issuance of up to 250,000 shares of common stock to participating employees. The ESPP is intended to be a qualified employee stock purchase plan under Section 423 of the Internal Revenue Code of 1986, or the IRC. The ESPP was approved at our Annual Meeting of Stockholders on December 7, 2018. The ESPP currently provides for a purchase price equal to 85% of the lower of (a) the fair market value of the common stock on the first trading day of each ESPP offering period and (b) the fair market value of the common stock on the last day of the offering period. Our initial offering period was for January 1, 2019 through June 30, 2019.

During the six months ended June 30, 2019, we recorded stock-based compensation expense of approximately $0.3 million associated with the ESPP. As a result of employee stock purchases during fiscal 2019, we issued 13,039 shares of common stock. The aggregate intrinsic value of shares issued under the ESPP during fiscal 2019 was $0.9 million. As of June 30, 2019, there were 236,961 shares of common stock available for issuance under the ESPP.

General Award Terms

We issue stock options and restricted stock units (RSUs) to our employees and outside directors, pursuant to shareholder-approved equity compensation plans. Option awards are granted with an exercise price equal to the market closing price of our stock on the trading day prior to the grant date. Those options generally vest over four years and expire within 7 or 10 years of grant. RSUs generally vest over four years. Historically, our practice has been to settle stock option exercises and RSU vesting through newly-issued shares.

Stock Compensation Accounting

Our stock-based compensation is accounted for as awards of equity instruments. Our policy is to issue new shares upon the exercise of stock awards.

We utilize the Black-Scholes option valuation model for estimating the fair value of options granted. The Black-Scholes option valuation model incorporates assumptions regarding expected stock price volatility, the expected life of the option, the risk-free interest rate, dividend yield and the market value of our common stock. The expected stock price volatility is determined based on our stock's historic prices over a period commensurate with the expected life of the award. The expected life of an option represents the period for which options are expected to be outstanding as determined by historic option exercises and cancellations. The risk-free interest rate is based on the U.S. Treasury yield curve for notes with terms approximating the expected life of the options granted. The expected dividend yield is zero, based on our history and expectation of not paying dividends on common shares. We recognize compensation costs on a straight-line basis, net of forfeitures, over the requisite service period for time-vested awards.

The weighted average estimated fair value of option awards granted during fiscal 2019, 2018 and 2017 was $31.25, $17.07, and $13.16, respectively.

We utilized the Black-Scholes option valuation model with the following weighted average assumptions:



	Year Ended June 30,
	2019		2018		2017
Risk-free interest rate	2.8	%	1.7	%	1.2	%
Expected dividend yield	None		None		None
Expected life (in years)	4.6		4.6		4.6
Expected volatility factor	26.6	%	28.0	%	31.3	%

The stock-based compensation expense and its classification in the accompanying consolidated statements of operations for fiscal 2019, 2018 and 2017 was as follows:



	Year Ended June 30,
	2019		2018		2017
			As Adjusted		As Adjusted
	(Dollars in Thousands)
Recorded as expenses:
Cost of maintenance	$	1,282	$	559	$	564
Cost of service and other	1,420		920		913
Selling and marketing	4,849		3,862		3,652
Research and development	6,923		7,617		5,806
General and administrative	13,099		9,730		7,865
Total stock-based compensation	$	27,573	$	22,688	$	18,800

A summary of stock option and RSU activity under all equity plans in fiscal 2019 is as follows:



	Stock Options							Restricted Stock Units
	Shares		Weighted Average Exercise Price		Weighted Average Remaining Contractual Term	Aggregate Intrinsic Value (in 000's)		Shares		Weighted Average Grant Date Fair Value
Outstanding at June 30, 2018	1,369,442		$	45.93	7.23	$	64,103	621,700		$	53.64
Granted	282,798		113.88					645,146		114.72
Settled (RSUs)								(392,364	)	60.51
Exercised	(252,975	)	39.24
Cancelled / Forfeited	(95,248	)	68.25					(80,764	)	68.58
Outstanding at June 30, 2019	1,304,017		$	60.33	6.94	$	83,388	793,718		$	98.38
Exercisable at June 30, 2019	842,746		$	48.81	6.11	$	63,598
Vested and expected to vest at June 30, 2019	1,249,802		$	59.52	6.87	$	80,935	748,240		$	99.36

During fiscal 2019, 2018 and 2017, the weighted average grant-date fair value of RSUs granted was $114.72, $64.32 and $46.59, respectively. During fiscal 2019, 2018 and 2017 the total fair value of vested shares from RSU grants amounted to $39.9 million, $23.0 million and $16.6 million, respectively.

As of June 30, 2019, the total future unrecognized compensation cost related to stock options and RSUs was $8.4 million and $26.2 million, respectively, and are expected to be recorded over a weighted average period of 2.47 years and 2.44 years, respectively.

During fiscal 2019, 2018 and 2017 the weighted average exercise price of stock options granted was $113.88, $64.30 and $46.31. The total intrinsic value of options exercised during fiscal 2019, 2018 and 2017 was $18.2 million, $15.1 million and $7.9 million, respectively. We received $10.9 million, $13.5 million and $9.3 million in cash proceeds from issuances of shares of common stock during fiscal 2019, 2018 and 2017, respectively. We paid $14.7 million, $8.1 million and $5.8 million for withholding taxes on vested RSUs during fiscal 2019, 2018 and 2017, respectively.

At June 30, 2019, common stock reserved for future issuance or settlement under equity compensation plans was 9.7 million shares.

Performance Awards

During fiscal 2019, we granted performance-based long-term incentive awards (“performance awards”) to certain of our executives, including our named executive officers. The performance period for each performance award is either of the following two-year periods: (i) fiscal year 2019 - fiscal year 2020, or (ii) fiscal year 2020 - fiscal year 2021. Participants receive RSUs on the grant date associated with achievement of all performance targets. The performance targets for the performance awards are based on meeting double digit growth in annual spend, defined as an estimate of the annualized value of our portfolio of term license arrangements, as of a specific date, and the performance goals set out in the executive bonus plan for each fiscal year, such as free cash flow. If the performance targets are met during one of the two performance periods and the participant remains actively employed by us, the RSUs convert to time-based vesting wherein fifty percent of the awards immediately vest, and the remaining fifty percent are subject to additional service vesting over a three-year period. In general, if the performance targets are not met, or if the participant is no longer actively employed by us prior to the performance targets being met, the participant forfeits all of the RSUs.

We record compensation expense for the performance awards based on the fair value of the awards, in an amount proportionate to the service time rendered by the participant, when it is probable that the achievement of the goals will be met. The total fair value of the performance awards granted during fiscal 2019 was estimated using the closing price on the date of grant as well as the estimated probable achievement levels of the performance metrics. If the performance-based conditions are not met, no compensation cost is recognized and any recognized compensation cost is reversed.

During fiscal 2019, we granted 382,373 RSUs in connection with the performance awards. As of June 30, 2019, all of the RSUs issued in connection with the performance awards were unvested and outstanding. No compensation expense was recognized during fiscal 2019.

On August 2, 2019, 60,680 RSUs in connection with the performance awards were forfeited associated with the departure of an executive.

Common Stock	12 Months Ended
Common Stock	Jun. 30, 2019
Equity [Abstract]
Common Stock	Common Stock On January 22, 2015, our Board of Directors approved a share repurchase program (the "Share Repurchase Program") for up to $450.0 million worth of our common stock. On April 26, 2016, June 8, 2017, April 18, 2018, December 6, 2018, and April 17, 2019, the Board of Directors approved a $400.0 million, $200.0 million, $200.0 million, $100.0 million, and $200.0 million increase in the Share Repurchase Program, respectively. The timing and amount of any shares repurchased are based on market conditions and other factors. All shares of our common stock repurchased have been recorded as treasury stock under the cost method. During fiscal 2019, we repurchased 3,074,127 shares of our common stock in the open market for $300.0 million. During fiscal 2018, we repurchased 2,797,623 shares of our common stock in the open market for $200.0 million. During fiscal 2017, we repurchased 5,185,257 shares of our common stock in the open market for $275.0 million and 2,106,709 shares of our common stock for $100.0 million as part of an accelerated share repurchase program. As of June 30, 2019, the remaining dollar value under the Share Repurchase Program was $346.3 million.

Net Income Per Share (Notes)

12 Months Ended

Jun. 30, 2019

Earnings Per Share [Text Block]

Net Income Per Share

Basic income per share is determined by dividing net income by the weighted average common shares outstanding during the period. Diluted income per share is determined by dividing net income by diluted weighted average shares outstanding during the period. Diluted weighted average shares reflect the dilutive effect, if any, of potential common shares. To the extent their effect is dilutive, employee equity awards and other commitments to be settled in common stock are included in the calculation of diluted net income per share based on the treasury stock method.

The calculations of basic and diluted net income per share and basic and dilutive weighted average shares outstanding for the years ended June 30, 2019, 2018 and 2017 are as follows:



	Year Ended June 30,
	2019		2018		2017
			As Adjusted		As Adjusted
	(Dollars and Shares in Thousands, Except per Share Data)
Net income	$	262,734	$	293,703	$	179,386

Weighted average shares outstanding	69,925		72,140		76,491
Dilutive impact from:
Employee equity awards	862		816		487
Dilutive weighted average shares outstanding	70,787		72,956		76,978
Income per share
Basic	$	3.76	$	4.07	$	2.35
Dilutive	$	3.71	$	4.03	$	2.33

For the years ended June 30, 2019, 2018 and 2017, certain employee equity awards were anti-dilutive based on the treasury stock method. The following employee equity awards were excluded from the calculation of dilutive weighted

average shares outstanding because their effect would be anti-dilutive as of the balance sheet date:



	Year Ended June 30,
	2019	2018	2017
	(Shares in Thousands)
Employee equity awards	784	419	525

Included in the table above are options to purchase 245,252 shares of our common stock as of June 30, 2019 which were not included in the computation of dilutive weighted average shares outstanding, because their exercise prices ranged from $103.19 per share to $123.56 per share and were greater than the average market price of our common stock during the period then ended. These options were outstanding as of June 30, 2019 and expire at various dates through June 23, 2029.

Income Taxes

12 Months Ended

Jun. 30, 2019

Income Tax Disclosure [Abstract]

Income Taxes

Income before provision for income taxes consists of the following:



	Year Ended June 30,
	2019		2018		2017
			As Adjusted		As Adjusted
	(Dollars in Thousands)
Domestic	$	298,665	$	229,745	$	228,890
Foreign	4,525		7,901		8,293
Income before provision for income taxes	$	303,190	$	237,646	$	237,183

The provision for income taxes shown in the accompanying consolidated statements of operations is composed of the following:



	Year Ended June 30,
	2019			2018			2017
				As Adjusted			As Adjusted
	(Dollars in Thousands)
Federal—
Current	$	64,194		$	47,734		$	69,385
Deferred	(26,983		)	(108,867		)	(13,110		)
State—
Current	3,246			1,471			1,737
Deferred	(1,026		)	1,042			(771		)
Foreign—
Current	1,549			2,296			2,067
Deferred	(524		)	267			(1,511		)
	$	40,456		$	(56,057	)	$	57,797

On December 22, 2017, the President of the United States signed into law Public Law No. 115-97, commonly referred to as the Tax Cuts and Jobs Act (the “Tax Act”), following its passage by the United States Congress. The Tax Act made significant changes to U.S. federal income tax laws, including reduction of the corporate tax rate from 35.0% to 21.0%, and the implementation of a territorial tax system resulting in a one-time transition tax on the unremitted earnings of our foreign subsidiaries. The Tax Act also contains additional provisions that are effective for us in fiscal year 2019, including a new deduction for Foreign-Derived Intangible Income (“FDII”), the repeal of the domestic production activity deduction, a new tax on Global Intangible Low-Taxed Income (“GILTI”), and increased limitations on the deductibility of certain executive compensation.

Our tax expense for fiscal 2019 was favorably impacted primarily by FDII deduction which reduced our effective tax rate by approximately 6.7%, the recognition of excess tax benefits related to stock-based compensation and the lower U.S. statutory tax rate of 21.0% as the result of the enactment of the Tax Act.

The provision for income taxes differs from that based on the federal statutory rate due to the following:



	Year Ended June 30,
	2019			2018			2017
				As Adjusted			As Adjusted
	(Dollars in Thousands)
Federal tax provision at statutory rate	$	63,670		$	66,683		$	83,014
State income taxes	1,540			1,503			1,167
Remeasurement of deferred taxes	—			(115,536		)	—
Foreign-derived intangible income (FDII)	(20,326		)	—			—
Global intangible low-taxed income (GILTI)	797			—			—
Effect of foreign operations	7,395			4,700			2,912
Foreign taxes and rate differences	514			(164		)	(206		)
Stock-based compensation	(3,774		)	(2,951		)	991
Tax credits	(9,677		)	(7,913		)	(6,614		)
Uncertain tax positions	1,055			(185		)	(19,645		)
Return to provision adjustments	(482		)	(488		)	464
Domestic production activity deduction	—			(4,869		)	(6,261		)
Valuation allowance	(550		)	2,326			1,522
Other	294			837			453
Provision for income taxes	$	40,456		$	(56,057	)	$	57,797

Net deferred tax liabilities consist of the following at June 30, 2019 and 2018:



	Year Ended June 30,
	2019			2018
				As Restated
	(Dollars in Thousands)
Deferred tax assets:
Federal and state credits	$	4,055		$	4,363
Capital loss carryforwards	—			4,856
Net operating loss carryforwards	906			1,452
Deferred revenue	5,252			3,163
Other reserves and accruals	6,082			6,550
Intangible assets	1,020			1,015
Property, leasehold improvements, and other basis differences	1,433			1,646
Other temporary differences	453			450
	19,201			23,495
Deferred tax liabilities:
Contract assets and costs	(156,346		)	(121,631		)
Deferred revenue	(8,610		)	(68,546		)
Intangible assets	(5,635		)	(5,231		)
Property, leasehold improvements, and other basis differences	(1,146		)	(1,340		)
	(171,737		)	(196,748		)
Valuation allowance	(4,866		)	(10,416		)
Net deferred tax liabilities	$	(157,402	)	$	(183,669	)

Reflected in the deferred tax assets above at June 30, 2019, we have foreign net operating loss carryforwards of $0.9 million, some of which will expire beginning in 2019 and others with unlimited carryforwards, and state research and development credits of $4.0 million which begin to expire in 2025.

We adopted ASU No. 2016-09 effective July 1, 2017. As a result of adopting the new standard, excess tax benefits from stock-based compensation are now reflected in the consolidated statements of operations as a component of the provision for income taxes, whereas they were previously a component of stockholders’ equity. The adoption of ASU No. 2016-09 resulted in a decrease in our provision for income taxes of $3.8 million and $3.0 million during fiscal 2019 and 2018, respectively. This represents a decrease in our effective tax rate of approximately one percentage point during fiscal 2019 and 2018, respectively, due to the recognition of excess tax benefits for options exercised and the vesting of equity awards.

Our valuation allowance for deferred tax assets was $4.9 million and $10.4 million as of June 30, 2019 and 2018 respectively. The most significant portion of the valuation allowance as of June 30, 2019 is attributable to a reserve against state R&D tax credits of $3.9 million. There was a decrease in the valuation allowance of $4.8 million during fiscal 2019 related to a capital loss expiring that had no impact on our tax provision.

For fiscal 2019, our income tax provision included amounts determined under the provisions of ASC 740 intended to satisfy additional income tax assessments, including interest and penalties, that could result from any tax return positions for which the likelihood of sustaining the position on audit does not meet a threshold of "more likely than not." Tax liabilities were recorded as a component of our income taxes payable and other non-current liabilities. The ultimate amount of taxes due will not be known until examinations are completed and settled or the audit periods are closed by statutes.

A reconciliation of the reserve for uncertain tax positions is as follows:



	Year Ended June 30,
	2019			2018			2017
				As Adjusted			As Adjusted
	(Dollars in Thousands)
Uncertain tax positions, beginning of year	$	3,931		$	3,921		$	23,535
Gross increases (decreases) —tax positions in prior period	407			544			(19,116		)
Gross increases—tax positions in current period	1,789			—			—
Gross decreases—lapse of statutes	(740		)	(637		)	(830		)
Currency translation adjustment	(7		)	103			332
Uncertain tax positions, end of year	$	5,380		$	3,931		$	3,921

At June 30, 2019, the total amount of unrecognized tax benefits is $5.4 million. Upon being recognized, the amount would reduce the effective tax rate. Our policy is to recognize interest and penalties related to income tax matters as provision for (benefit from) income taxes. At June 30, 2019, we had approximately $0.5 million of accrued interest and $0.1 million of penalties related to uncertain tax positions. We recorded a benefit for interest and penalties of approximately $0.1 million during fiscal 2019.

We are subject to income tax in many jurisdictions outside the U.S. Our operations in certain jurisdictions remain subject to examination for tax years 2008 to 2017, some of which are currently under audit by local tax authorities. The resolutions of these audits are not expected to be material to our consolidated financial statements.

Commitments and Contingencies

12 Months Ended

Jun. 30, 2019

Commitments and Contingencies Disclosure [Abstract]

Commitments and Contingencies

Operating Leases

We lease certain facilities and various office equipment under non-cancellable operating leases with terms in excess of one year. Rental expense, including short term leases, maintenance charges and taxes on leased facilities, was approximately $8.3 million, $8.2 million and $8.4 million for fiscal years 2019, 2018 and 2017, respectively.

Future minimum lease payments under these leases as of June 30, 2019 are as follows:



Year Ended June 30,	Operating Leases
	(Dollars in Thousands)
2020	$	8,399
2021	7,820
2022	6,514
2023	5,862
2024	4,932
Thereafter	3,307
Total	$	36,834

Letters of Credit

Standby letters of credit for $3.9 million secure our performance on professional services contracts and certain facility leases. The letters of credit expire at various dates through fiscal 2025.

Retirement Plans	12 Months Ended
Retirement Plans	Jun. 30, 2019
Defined Contribution Plan [Abstract]
Retirement and Profit Sharing Plans	Retirement Plans We maintain a defined contribution retirement plan under Section 401(k) of the Internal Revenue Code (IRC) covering all eligible employees, as defined. Under the plan, a participant may elect to defer receipt of a stated percentage of his or her compensation, subject to limitation under the IRC, which would otherwise be payable to the participant for any plan year. We may make discretionary contributions to this plan, including making matching contributions of 50%, up to a maximum of 6% of an employee's pretax contribution. We made matching contributions of approximately $2.6 million, $2.7 million and $2.5 million in fiscal 2019, 2018 and 2017, respectively. Additionally, we participate in certain government mandated and defined contribution plans throughout the world for which we comply with all funding requirements.

Segment and Geographic Information

12 Months Ended

Jun. 30, 2019

Segment Reporting [Abstract]

Segment and Geographic Information

Operating segments are defined as components of an enterprise that engage in business activities for which discrete financial information is available and regularly reviewed by the chief operating decision maker in deciding how to allocate resources and to assess performance. Our chief operating decision maker is our President and Chief Executive Officer.

We have two operating and reportable segments, which are consistent with our reporting units: i) subscription and software and ii) services and other. The subscription and software segment is engaged in the licensing of process optimization and asset performance management software solutions and associated support services, and includes our license and maintenance revenue. The services and other segment includes professional services and training, and includes our services and other revenue. We do not track assets or capital expenditures by operating segments. Consequently, it is not practical to present assets, capital expenditures, depreciation or amortization by operating segments

The following table presents a summary of our reportable segments' profits:



	Subscription and Software			Services and Other			Total
	(Dollars in Thousands)
Year Ended June 30, 2019:
Segment revenue	$	569,558		$	28,787		$	598,345
Segment expenses(1)	(220,764		)	(31,548		)	(252,312		)
Segment profit	$	348,794		$	(2,761	)	$	346,033
Year Ended June 30, 2018, As Adjusted:
Segment revenue	$	487,614		$	31,245		$	518,859
Segment expenses(1)	(204,457		)	(28,000		)	(232,457		)
Segment profit	$	283,157		$	3,245		$	286,402
Year Ended June 30, 2017, As Adjusted:
Segment revenue	$	464,271		$	30,156		$	494,427
Segment expenses(1)	(192,559		)	(26,414		)	(218,973		)
Segment profit	$	271,712		$	3,742		$	275,454

____________________________________________


(1)	Our reportable segments’ operating expenses include expenses directly attributable to the segments. Segment expenses include selling and marketing and research and development expenses. Segment expenses do not include allocations of general and administrative expense; interest income, net; and other (expense), net.

Reconciliation to Income Before Income Taxes

The following table presents a reconciliation of total segment operating profit to income before provision for income taxes:



	Year Ended June 30,
	2019			2018			2017
				As Adjusted			As Adjusted
	(Dollars in Thousands)
Total segment profit for reportable segments	$	346,033		$	286,402		$	275,454
General and administrative	(63,231		)	(67,181		)	(58,735		)
Interest income	28,457			24,954			22,942
Interest (expense)	(8,733		)	(5,691		)	(3,787		)
Other (expense) income, net	664			(838		)	1,309
Income before income taxes	$	303,190		$	237,646		$	237,183

Geographic Information:

We have long-lived assets of approximately $79.0 million that are located domestically and $44.5 million that reside in other geographic locations as of June 30, 2019. We had long-lived assets of approximately $93.9 million that were located domestically and $39.8 million that reside in other geographic locations as of June 30, 2018.

Quarterly Financial Data (Unaudited)

12 Months Ended

Jun. 30, 2019

Quarterly Financial Data [Abstract]

Quarterly Financial Data (Unaudited)

The following tables present quarterly consolidated statement of operations data for fiscal 2019 and 2018. The below data is unaudited but, in our opinion, reflects all adjustments necessary for a fair presentation of this data in accordance with GAAP:



	Three Months Ended
	June 30, 2019		March 31, 2019		December 31, 2018		September 30, 2018
	(Dollars and Shares in Thousands, Except per Share Data)
Total revenue	$	195,769	$	147,984	$	140,423	$	114,169
Gross profit	180,279		133,624		125,684		100,942
Income from operations	111,223		70,831		63,758		36,990
Net income	103,865		61,587		59,217		38,066
Net income per common share:
Basic	$	1.51	$	0.89	$	0.84	$	0.54
Diluted	$	1.49	$	0.88	$	0.83	$	0.53
Weighted average shares outstanding:
Basic	68,839		69,423		70,428		70,988
Diluted	69,638		70,160		71,148		72,015



	Three Months Ended
	June 30, 2018		March 31, 2018		December 31, 2017		September 30, 2017
	As Adjusted
	(Dollars and Shares in Thousands, Except per Share Data)
Total revenue	$	159,084	$	127,759	$	105,529	$	126,487
Gross profit	146,037		114,983		93,440		113,755
Income from operations	79,784		53,620		30,104		55,714
Net income	76,646		44,506		132,030		40,521
Net income per common share:
Basic	$	1.07	$	0.62	$	1.83	$	0.55
Diluted	$	1.06	$	0.61	$	1.81	$	0.55
Weighted average shares outstanding:
Basic	71,349		71,828		72,342		73,024
Diluted	72,315		72,663		73,036		73,609

Restatement of the Fiscal 2019 Unaudited Quarterly Financial Statements

As previously described in our Current Report on Form 8-K filed on September 10, 2019, we concluded that our unaudited interim financial statements previously issued for the quarterly and year-to-date periods ended September 30, 2018, December 31, 2018 and March 31, 2019 should not be relied upon due to errors identified in such financial statements related to the contract asset balances recorded upon the adoption of Topic 606 and the related impact to deferred tax liabilities, as well as the classification of contract cost assets and related deferred tax assets and liabilities on the consolidated balance sheets. The following summarizes the errors corrected in the restatement of the unaudited quarterly financial statements.

ASPEN TECHNOLOGY, INC. AND SUBSIDIARIES

CONSOLIDATED BALANCE SHEETS

(Unaudited)



	June 30, 2018
	As Previously Reported		Adjustments			As Restated
	(Dollars in Thousands, Except Share and Per Share Data)
ASSETS
Current assets:
Cash and cash equivalents	$	96,165	$	—		$	96,165
Accounts receivable, net	41,810		—			41,810
Current contract assets	304,378		(66,841		)	237,537
Current contract costs	20,500		(20,500		)	—
Prepaid expenses and other current assets	10,509		—			10,509
Prepaid income taxes	2,601		—			2,601
Total current assets	475,963		(87,341		)	388,622
Property, equipment and leasehold improvements, net	9,806		—			9,806
Computer software development costs, net	646		—			646
Goodwill	75,590		—			75,590
Intangible assets, net	35,310		—			35,310



Non-current contract assets	340,622			(20,782		)	319,840
Non-current contract costs	—			20,500			20,500
Non-current deferred tax assets	11,090			(9,858		)	1,232
Other non-current assets	1,297			—			1,297
Total assets	$	950,324		$	(97,481	)	$	852,843
LIABILITIES AND STOCKHOLDERS' EQUITY
Current liabilities:
Accounts payable	$	4,230		$	—		$	4,230
Accrued expenses and other current liabilities	39,515			—			39,515
Income taxes payable	1,698			—			1,698
Borrowings under credit agreement	170,000			—			170,000
Current deferred revenue	15,150			—			15,150
Total current liabilities	230,593			—			230,593
Non-current deferred revenue	12,354			—			12,354
Deferred income taxes	214,125			(29,224		)	184,901
Other non-current liabilities	17,068			—			17,068
Commitments and contingencies
Series D redeemable convertible preferred stock, $0.10 par value—Authorized—3,636 shares as of June 30, 2018 and 2017 Issued and outstanding—none as of June 30, 2018 and 2017	—			—			—
Stockholders' equity:
Common stock, $0.10 par value—Authorized—210,000,000 shares Issued—103,130,300 shares at June 30, 2018 and 102,567,129 shares at June 30, 2017 Outstanding—71,186,701 shares at June 30, 2018 and 73,421,153 shares at June 30, 2017	10,313			—			10,313
Additional paid-in capital	715,475			—			715,475
Retained earnings	1,065,507			(68,257		)	997,250
Accumulated other comprehensive income	1,388			—			1,388
Treasury stock, at cost— 31,943,599 shares of common stock at June 30, 2018 and 29,145,976 shares at June 30, 2017	(1,316,499		)	—			(1,316,499		)
Total stockholders' equity	476,184			(68,257		)	407,927
Total liabilities and stockholders' equity	$	950,324		$	(97,481	)	$	852,843

ASPEN TECHNOLOGY, INC. AND SUBSIDIARIES

CONSOLIDATED BALANCE SHEETS

(Unaudited)



	September 30, 2018
	As Previously Reported		Adjustments			As Restated
	(Dollars in Thousands, Except Share and Per Share Data)
ASSETS
Current assets:
Cash and cash equivalents	$	52,048	$	—		$	52,048
Accounts receivable, net	53,999		(3,653		)	50,346



Current contract assets	317,967			(79,472		)	238,495
Current contract costs	21,296			(21,296		)	—
Prepaid expenses and other current assets	12,992			—			12,992
Prepaid income taxes	1,422			—			1,422
Total current assets	459,724			(104,421		)	355,303
Property, equipment and leasehold improvements, net	9,006			—			9,006
Computer software development costs, net	695			—			695
Goodwill	75,649			—			75,649
Intangible assets, net	34,192			—			34,192
Non-current contract assets	357,947			(4,498		)	353,449
Non-current contract costs	—			21,296			21,296
Non-current deferred tax assets	1,176			—			1,176
Other non-current assets	1,279			—			1,279
Total assets	$	939,668		$	(87,623	)	$	852,045
LIABILITIES AND STOCKHOLDERS' EQUITY
Current liabilities:
Accounts payable	$	2,501		$	—		$	2,501
Accrued expenses and other current liabilities	32,000			—			32,000
Income taxes payable	46,869			—			46,869
Borrowings under credit agreement	170,000			—			170,000
Current deferred revenue	23,737			—			23,737
Total current liabilities	275,107			—			275,107
Non-current deferred revenue	15,046			—			15,046
Deferred income taxes	159,563			(19,366		)	140,197
Other non-current liabilities	16,833			—			16,833
Commitments and contingencies
Series D redeemable convertible preferred stock, $0.10 par value—Authorized—3,636 shares as of September 30, 2018 and June 30, 2018 Issued and outstanding—none as of September 30, 2018 and June 30, 2018	—			—			—
Stockholders' equity:
Common stock, $0.10 par value—Authorized—210,000,000 shares Issued—103,279,138 shares at September 30, 2018 and 103,130,300 shares at June 30, 2018 Outstanding—70,862,163 shares at September 30, 2018 and 71,186,701 shares at June 30, 2018	10,328			—			10,328
Additional paid-in capital	724,752			—			724,752
Retained earnings	1,103,573			(68,257		)	1,035,316
Accumulated other comprehensive income	965			—			965
Treasury stock, at cost— 32,416,975 shares of common stock at September 30, 2018 and 31,943,599 shares at June 30, 2018	(1,366,499		)	—			(1,366,499		)
Total stockholders' equity	473,119			(68,257		)	404,862
Total liabilities and stockholders' equity	$	939,668		$	(87,623	)	$	852,045

ASPEN TECHNOLOGY, INC. AND SUBSIDIARIES

CONSOLIDATED BALANCE SHEETS

(Unaudited)



	December 31, 2018
	As Previously Reported		Adjustments			As Restated
	(Dollars in Thousands, Except Share and Per Share Data)
ASSETS
Current assets:
Cash and cash equivalents	$	54,428	$	—		$	54,428
Accounts receivable, net	56,586		(3,653		)	52,933
Current contract assets	321,135		(55,449		)	265,686
Current contract costs	23,046		(23,046		)	—
Prepaid expenses and other current assets	10,330		—			10,330
Prepaid income taxes	921		—			921
Total current assets	466,446		(82,148		)	384,298
Property, equipment and leasehold improvements, net	8,311		—			8,311
Computer software development costs, net	691		—			691
Goodwill	74,802		—			74,802
Intangible assets, net	32,889		—			32,889
Non-current contract assets	366,581		(28,521		)	338,060
Non-current contract costs	—		23,046			23,046
Non-current deferred tax assets	1,651		—			1,651
Other non-current assets	1,075		—			1,075
Total assets	$	952,446	$	(87,623	)	$	864,823
LIABILITIES AND STOCKHOLDERS' EQUITY
Current liabilities:
Accounts payable	$	5,249	$	—		$	5,249
Accrued expenses and other current liabilities	36,688		—			36,688
Income taxes payable	43,573		—			43,573
Borrowings under credit agreement	220,000		—			220,000
Current deferred revenue	23,145		—			23,145
Total current liabilities	328,655		—			328,655
Non-current deferred revenue	18,167		—			18,167
Deferred income taxes	157,238		(19,366		)	137,872
Other non-current liabilities	16,192		—			16,192
Commitments and contingencies
Series D redeemable convertible preferred stock, $0.10 par value—Authorized—3,636 shares as of December 31, 2018 and June 30, 2018 Issued and outstanding—none as of December 31, 2018 and June 30, 2018	—		—			—
Stockholders' equity:
Common stock, $0.10 par value—Authorized—210,000,000 shares Issued—103,395,683 shares at December 31, 2018 and 103,130,300 shares at June 30, 2018 Outstanding—69,803,177 shares at December 31, 2018 and 71,186,701 shares at June 30, 2018	10,340		—			10,340
Additional paid-in capital	725,493		—			725,493
Retained earnings	1,162,790		(68,257		)	1,094,533



Accumulated other comprehensive income	70			—			70
Treasury stock, at cost— 33,592,506 shares of common stock at December 31, 2018 and 31,943,599 shares at June 30, 2018	(1,466,499		)	—			(1,466,499		)
Total stockholders' equity	432,194			(68,257		)	363,937
Total liabilities and stockholders' equity	$	952,446		$	(87,623	)	$	864,823

ASPEN TECHNOLOGY, INC. AND SUBSIDIARIES

CONSOLIDATED BALANCE SHEETS

(Unaudited)



	March 31, 2019
	As Previously Reported		Adjustments			As Restated
	(Dollars in Thousands, Except Share and Per Share Data)
ASSETS
Current assets:
Cash and cash equivalents	$	65,592	$	—		$	65,592
Accounts receivable, net	45,293		(3,653		)	41,640
Current contract assets	314,745		(44,013		)	270,732
Current contract costs	24,325		(24,325		)	—
Prepaid expenses and other current assets	11,124		—			11,124
Prepaid income taxes	1,573		—			1,573
Total current assets	462,652		(71,991		)	390,661
Property, equipment and leasehold improvements, net	7,589		—			7,589
Computer software development costs, net	1,452		—			1,452
Goodwill	73,534		—			73,534
Intangible assets, net	31,756		—			31,756
Non-current contract assets	358,709		(39,957		)	318,752
Non-current contract costs	—		24,325			24,325
Non-current deferred tax assets	1,696		—			1,696
Other non-current assets	1,279		—			1,279
Total assets	$	938,667	$	(87,623	)	$	851,044
LIABILITIES AND STOCKHOLDERS' EQUITY
Current liabilities:
Accounts payable	$	4,023	$	—		$	4,023
Accrued expenses and other current liabilities	42,746		—			42,746
Income taxes payable	35,582		—			35,582
Borrowings under credit agreement	220,000		—			220,000
Current deferred revenue	24,415		—			24,415
Total current liabilities	326,766		—			326,766
Non-current deferred revenue	19,312		—			19,312
Deferred income taxes	154,901		(19,366		)	135,535
Other non-current liabilities	12,403		—			12,403



Commitments and contingencies
Series D redeemable convertible preferred stock, $0.10 par value—Authorized—3,636 shares as of March 31, 2019 and June 30, 2018 Issued and outstanding—none as of March 31, 2019 and June 30, 2018	—			—			—
Stockholders' equity:
Common stock, $0.10 par value—Authorized—210,000,000 shares Issued—103,478,590 shares at March 31, 2019 and 103,130,300 shares at June 30, 2018 Outstanding—69,108,515 shares at March 31, 2019 and 71,186,701 shares at June 30, 2018	10,348			—			10,348
Additional paid-in capital	730,830			—			730,830
Retained earnings	1,224,377			(68,257		)	1,156,120
Accumulated other comprehensive income	1,229			—			1,229
Treasury stock, at cost— 34,370,075 shares of common stock at March 31, 2019 and 31,943,599 shares at June 30, 2018	(1,541,499		)	—			(1,541,499		)
Total stockholders' equity	425,285			(68,257		)	357,028
Total liabilities and stockholders' equity	$	938,667		$	(87,623	)	$	851,044

Schedule II - Valuation and Qualifying Accounts (Notes)

12 Months Ended

Jun. 30, 2019

SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items]

SEC Schedule, 12-09, Schedule of Valuation and Qualifying Accounts Disclosure [Text Block]

Schedule II - Valuation and Qualifying Accounts



Description	Balance at Beginning of Year			Additions: Charges to Costs and Expenses			Deductions: Returns and Write-Offs		Balance at End of Year
	(Dollars in Thousands)
Year ended June 30, 2019 Allowance for doubtful accounts	$	(2,703	)	$	(1,621	)	$	975	$	(3,349	)
Year ended June 30, 2018, As Adjusted Allowance for doubtful accounts	(1,285		)	(2,463		)	1,045		(2,703		)
Year ended June 30, 2017, As Adjusted Allowance for doubtful accounts	(1,604		)	(1,338		)	1,657		(1,285		)

Significant Accounting Policies (Policies)	12 Months Ended
Significant Accounting Policies (Policies)	Jun. 30, 2019
Accounting Policies [Abstract]
Principles of Consolidation	(a) Principles of Consolidation The accompanying consolidated financial statements include the accounts of Aspen Technology, Inc. and our wholly owned subsidiaries. All intercompany balances and transactions have been eliminated in consolidation. Restatement In connection with the restatement of the fiscal 2019 unaudited quarterly financial statements described in Note 19, "Quarterly Financial Data (Unaudited)," to our Consolidated Financial Statements, we have restated the adjusted June 30, 2018 balance sheet as previously presented in such quarterly financial statements. Refer to Note 19 for further information. Reclassifications Certain line items in prior period financial statements have been reclassified to conform to currently reported presentations.
Management Estimates	(b) Management Estimates The preparation of financial statements in conformity with accounting principles generally accepted in the United States of America requires management to make estimates and assumptions. These estimates and assumptions affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenue and expenses during the reporting period. Actual results could differ from those estimates.
Cash and Cash Equivalents	(c) Cash and Cash Equivalents Cash and cash equivalents consist of short-term money market instruments.
Computer Software Development Costs	(d) Computer Software Development Costs Certain computer software development costs are capitalized in the accompanying consolidated balance sheets. Capitalization of computer software development costs begins upon establishing technological feasibility defined as meeting specifications determined by the program design. Amortization of capitalized computer software development costs is provided on a product-by-product basis using the greater of (a) the amount computed using the ratio that current gross revenue for a product bears to total of current and anticipated future gross revenue for that product or (b) the straight-line method, beginning upon commercial release of the product, and continuing over the remaining estimated economic life of the product, not to exceed three years. Total computer software costs capitalized were $1.1 million, $0.4 million and $0.4 million during the years ended June 30, 2019, 2018 and 2017, respectively. Total amortization expense charged to operations was approximately $0.5 million, $0.4 million and $0.5 million for the years ended June 30, 2019, 2018 and 2017, respectively. Computer software development accumulated amortization totaled $75.1 million and $74.7 million as of June 30, 2019 and 2018, respectively. Weighted average remaining useful life of computer software development costs was 2.5 years and 1.0 years at June 30, 2019 and 2018, respectively. At each balance sheet date, we evaluate the unamortized capitalized software costs for potential impairment by comparing the balance to the net realizable value of the products. During the years ending June 30, 2019, 2018 and 2017, our computer software development costs were not considered impaired and as such, we did not recognize impairment losses during the periods then ended.
Foreign Currency Transactions	(e) Foreign Currency Translation The determination of the functional currency of subsidiaries is based on the subsidiaries' financial and operational environment. Gains and losses from foreign currency translation related to entities whose functional currency is not our reporting currency are credited or charged to accumulated other comprehensive income included in stockholders' equity in the consolidated balance sheets. In all instances, foreign currency transaction and remeasurement gains or losses are credited or charged to the consolidated statements of operations as incurred as a component of other income (expense), net. Net foreign currency transaction and remeasurement gains were $0.7 million in fiscal 2019, losses were $(0.8) million in fiscal 2018, and gains were $0.6 million in fiscal 2017.
Concentration of Credit Risk	(f) Concentration of Credit Risk Financial instruments that potentially subject us to concentrations of credit risk are principally cash and cash equivalents and accounts receivable. Our cash is held in financial institutions and our cash equivalents are invested in money market mutual funds that we believe to be of high credit quality. Concentration of credit risk with respect to receivables is limited to certain customers to which we make substantial sales. To reduce risk, we assess the financial strength of our customers. We do not require collateral or other security in support of our receivables. As of June 30, 2019, we had no customer receivable balances that individually represented 10% or more of our net accounts receivable. As of June 30, 2018, we had one customer receivable balance that represented approximately 12% of our total receivables, and was collected subsequent to June 30, 2018.
Computer Software Developed for Internal Use	(g) Computer Software Developed for Internal Use and Long-Lived Assets Computer Software Developed for Internal Use: Computer software developed for internal use is capitalized in accordance with ASC Topic 350-40, Intangibles Goodwill and Other—Internal Use Software. We capitalize costs incurred to develop internal-use software during the application development stage after determining software technological requirements and obtaining management approval for funding projects probable of completion. In fiscal 2019, 2018 and 2017, there were no capitalized direct labor costs associated with our development of software for internal use.
Impairment of Long-Lived Assets	Impairment of Long-Lived Assets: We evaluate our long-lived assets, which include finite-lived intangible assets, property and leasehold improvements for impairment as events and circumstances indicate that the carrying amount of an asset or a group of assets may not be recoverable. We assess the recoverability of the asset or a group of assets based on the undiscounted future cash flows the asset is expected to generate, and recognize an impairment loss when estimated undiscounted future cash flows expected to result from the use of the asset are less than its carrying value. If an asset or a group of assets are deemed to be impaired, the amount of the impairment loss, if any, represents the excess of the asset's or a group of assets' carrying value compared to their estimated fair values.
Comprehensive Income	(h) Comprehensive Income Comprehensive income is defined as the change in equity of a business enterprise during a period from transactions and other events and circumstances from non-owner sources. Comprehensive income and its components for fiscal 2019, 2018 and 2017 are disclosed in the accompanying consolidated statements of comprehensive income. As of June 30, 2019 and 2018, accumulated other comprehensive income is comprised of foreign translation adjustments of $0.3 million and $1.4 million, respectively.
Accounting for Stock-Based Compensation	(i) Accounting for Stock-Based Compensation Stock-based compensation cost is measured at the grant date based on the fair value of the award and is recognized as expense over the vesting period.
Income Taxes	(j) Income Taxes Deferred income taxes are recognized based on temporary differences between the financial statement and tax bases of assets and liabilities. Deferred tax assets and liabilities are measured using the statutory tax rates and laws expected to apply to taxable income in the years in which the temporary differences are expected to reverse. Valuation allowances are provided against net deferred tax assets if, based upon the available evidence, it is more likely than not that some or all of the deferred tax assets will not be realized. The ultimate realization of deferred tax assets is dependent upon the generation of future taxable income and the timing of the temporary differences becoming deductible. Management considers, among other available information, scheduled reversals of deferred tax liabilities, projected future taxable income, limitations of availability of net operating loss carryforwards, and other matters in making this assessment. We do not provide deferred taxes on unremitted earnings of foreign subsidiaries since we intend to indefinitely reinvest either currently or sometime in the foreseeable future. Unrecognized provisions for taxes on undistributed earnings of foreign subsidiaries, which are considered indefinitely reinvested, are not material to our consolidated financial position or results of operations. We are continuously subject to examination by the IRS, as well as various state and foreign jurisdictions. The IRS and other taxing authorities may challenge certain deductions and credits reported by us on our income tax returns. In accordance with provisions of ASC Topic 740, Income Taxes (ASC 740), an entity should recognize a tax benefit when it is more-likely-than-not, based on the technical merits, that the position would be sustained upon examination by a taxing authority. The amount to be recognized, if the more-likely-than-not threshold was passed, should be measured as the largest amount of tax benefit that is greater than 50 percent likely of being realized upon ultimate settlement with a taxing authority that has full knowledge of all relevant information. Furthermore, any change in the recognition, de-recognition or measurement of a tax position should be recorded in the period in which the change occurs. We account for interest and penalties related to uncertain tax positions as part of the provision for income taxes.
Loss Contingencies	(k) Loss Contingencies We accrue estimated liabilities for loss contingencies arising from claims, assessments, litigation and other sources when it is probable that a liability has been incurred and the amount of the claim assessment or damages can be reasonably estimated. We believe that we have sufficient accruals to cover any obligations resulting from claims, assessments or litigation that have met these criteria.
Advertising Costs	(l) Advertising Costs Advertising costs are expensed as incurred and are classified as sales and marketing expenses. We incurred advertising expenses of $4.4 million, $3.2 million and $3.2 million during fiscal 2019, 2018 and 2017, respectively.
Research and Development Expense	(m) Research and Development Expense We charge research and development expenditures to expense as the costs are incurred. Research and development expenses consist primarily of personnel expenses related to the creation of new products, enhancements and engineering changes to existing products and costs of acquired technology prior to establishing technological feasibility. During fiscal 2017, we acquired certain technologies for $2.3 million. At the time we acquired the technology, the project to develop a commercially available product did not meet the definition of having reached technological feasibility and as such, the entire cost of the acquired technology was expensed as research and development expense.
Recent Accounting Pronouncements	(n) New Accounting Pronouncements Adopted in Fiscal 2019 In May 2014, the FASB issued Topic 606, which supersedes the revenue recognition requirements in Revenue Recognition (Topic 605), and requires entities to recognize revenue when they transfer promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. Under the new guidance, an entity is required to evaluate revenue recognition through a five-step process. In applying the principles of Topic 606, more judgment and estimates are required within the revenue recognition process than were required under previous U.S. GAAP, including identifying performance obligations in the contract, estimating the amount of variable consideration to include in the transaction price, and allocating the transaction price to each separate performance obligation. We adopted Topic 606 effective July 1, 2018 using the full retrospective method, which required us to adjust the prior periods presented. The adoption of Topic 606 impacted the timing of the license portion of the revenue recognized from our term contracts. Under the new standard, for arrangements that include term-based software licenses bundled with maintenance and support, we are now required to recognize as revenue a portion of the arrangement fee upon delivery of the software license. We recognize as revenue a portion of the arrangement fee related to maintenance and support, professional services, and training over time as the services are provided. Additionally, under the new standard, we capitalize certain direct and incremental commission costs to obtain a contract and amortize such costs over the expected period of benefit, rather than expensing them as incurred in the period that the commissions are earned. See Note 3, "Revenue from Contracts with Customers," to our Consolidated Financial Statements for more information on our accounting policies as a result of the adoption of Topic 606. In January 2017, the FASB issued ASU No. 2017-01, Business Combinations (Topic 805) - Clarifying the Definition of a Business. The amendment changes the definition of a business to assist entities in evaluating when a set of transferred assets and activities constitutes a business. We adopted ASU No. 2017-01 effective July 1, 2018. The adoption of ASU No. 2017-01 did not have a material effect on our consolidated financial statements or related disclosures. In March 2018, the FASB issued ASU No. 2018-05, Income Taxes (Topic 740) - Amendments to SEC Paragraphs Pursuant to SEC Staff Accounting Bulletin No. 118. The amendment provides guidance on accounting for the impact of the Tax Cuts and Jobs Act (the “Tax Act”) and allows entities to complete the accounting under ASC 740 within a one-year measurement period from the Tax Act enactment date. This standard is effective upon issuance. The Tax Act has several significant changes that impact all taxpayers, including a transition tax, which is a one-time tax charge on accumulated, undistributed foreign earnings. The calculation of accumulated foreign earnings requires an analysis of each foreign entity’s financial results going back to 1986. We have concluded that we will not be subject to the transition tax associated with our accumulated, undistributed foreign earnings. In August 2018, the FASB issued ASU 2018-15, Intangibles - Goodwill and Other - Internal-Use Software (Subtopic 350-40) - Customer’s Accounting for Implementation Costs Incurred in a Cloud Computing Arrangement that is a Service Contract. The amendment aligns the requirements for capitalizing implementation costs incurred in a hosting arrangement that is a service contract with the requirements for capitalizing implementation costs incurred to develop or obtain internal-use software (and hosting arrangements that include an internal use software license). The accounting for the service element of a hosting arrangement that is a service contract is not affected by the amendment. The ASU is effective for annual periods, including interim periods within those annual periods, beginning after December 15, 2019. We adopted ASU No. 2018-15 effective October 1, 2018. During fiscal 2019, $0.8 million of implementation costs were capitalized, and $0.1 million expensed, as a result of the adoption of ASU No. 2018-15. (o) Recently Issued Accounting Pronouncements In February 2016, the FASB issued ASU No. 2016-02, Leases (Topic 842). Under the amendment, lessees will be required to recognize virtually all of their leases on the balance sheet, by recording a right-of-use asset and lease liability. The ASU is effective for annual periods, including interim periods within those annual periods, beginning after December 15, 2018. Early adoption is permitted. We will adopt Topic 842 using the modified retrospective method effective July 1, 2019. We will elect the available practical expedients permitted under the transition guidance within the new standard, and will implement internal controls to enable the preparation of financial information upon adoption. The most significant impact will be the recognition of right-of use (ROU) assets and lease liabilities for operating leases, while our accounting for capital leases will remain substantially unchanged. Based upon the work performed to date, we expect the adoption of Topic 842 will result in the recognition of a right-of-use asset, and a corresponding lease liability, of approximately $32.0 million to $36.0 million on the consolidated balance sheets. The difference between the assets and liabilities will be attributable to the reclassification of certain existing lease-related assets and liabilities. Where applicable, a corresponding deferred tax asset and liability will be recorded related to the right-of-use asset and lease liability. Topic 842 is not expected to materially impact the consolidated statements of operations or consolidated statements of cash flows.

Revenue from Contracts with Customers (Policies)

12 Months Ended

Jun. 30, 2019

Revenue from Contracts with Customers [Abstract]

Revenue from Contract with Customer [Policy Text Block]

Revenue from Contracts with Customers

Nature of Products and Services

We also license our software through point product term arrangements, which include our Premier Plus SMS offering for the entire term.

We determine revenue recognition through the following steps:

• Identification of the contract, or contracts, with a customer;

• Identification of the performance obligations in the contract;

• Determination of the transaction price;

• Allocation of the transaction price to the performance obligations in the contract; and

• Recognition of revenue when, or as, we satisfy a performance obligation.

Term-based Arrangements: Term-based arrangements consist of on-premise term licenses as well as maintenance.

License

License revenue consists primarily of product and related revenue from our aspenONE licensing model and point product arrangements.

Maintenance

Services and Other Revenue

Professional Services Revenue

Training Revenue

Contracts with Multiple Performance Obligations

Our contracts generally contain more than one of the products and services listed above, each of which is separately accounted for as a distinct performance obligation.

account for them as a single arrangement and allocate the consideration for the combined contracts among the performance obligations accordingly.

Other policies and judgments

Contract modifications

Disaggregation of Revenue

We disaggregate our revenue by region, type of performance obligation, timing of revenue recognition, and segment as follows:



	Year Ended June 30,
	2019		2018		2017
			As Adjusted		As Adjusted
	(Dollars in Thousands)
Revenue by region:
United States	$	219,967	$	207,266	$	158,761
Europe	155,543		126,862		166,133
Other (1)	222,835		184,731		169,533
	$	598,345	$	518,859	$	494,427

Revenue by type of performance obligation:
License	$	404,122	$	326,549	$	307,259
Maintenance	165,436		161,065		157,012
Services and other	28,787		31,245		30,156
	$	598,345	$	518,859	$	494,427

Revenue by segment:
Subscription and software	$	569,558	$	487,614	$	464,271
Services and other	28,787		31,245		30,156
	$	598,345	$	518,859	$	494,427

____________________________________________


(1)	Other consists primarily of Asia Pacific, Canada, Latin America and the Middle East.

Contract Balances

Our contract assets and deferred revenue were as follows as of June 30, 2019 and 2018:



	June 30, 2019			June 30, 2018
				As Restated
	(Dollars in Thousands)
Contract assets	$	619,703		$	557,377
Deferred revenue	(44,891		)	(27,504		)
	$	574,812		$	529,873

Contract assets and deferred revenue are presented net at the contract level for each reporting period.

Contract Costs

Amortization of capitalized contract costs is included in sales and marketing expenses in our Consolidated Statement of Operations.

Transaction Price Allocated to Remaining Performance Obligations



	Year Ended June 30,
	2020		2021		2022		2023		2024		Thereafter
	(Dollars in Thousands)
License	$	47,869	$	31,944	$	9,820	$	3,575	$	1,559	$	721
Maintenance	193,348		144,734		101,127		64,286		37,613		14,847
Services and other	43,679		646		594		345		74		16

Impact to Prior Period Information

The following table presents the effect of the adoption of Topic 606 on select consolidated statements of operations line items for fiscal 2018 and 2017:



	Year Ended June 30, 2018
	As Previously Reported		Adjustments			As Adjusted
	(Dollars in Thousands, Except per Share Data)
Consolidated Statements of Operations:
License revenue	$	—	$	326,549		$	326,549
Maintenance revenue	—		161,065			161,065
Subscription and software revenue	471,041		(471,041		)	—
Services and other revenue	28,473		2,772			31,245
Total revenue	499,514		19,345			518,859
Gross profit	448,870		19,345			468,215
Selling and marketing expense	101,077		(1,340		)	99,737
General and administrative expense	56,076		11,105			67,181
Total operating expenses	239,229		9,765			248,994
Income from operations	209,641		9,580			219,221
Interest income	231		24,723			24,954
Provision for (benefit from) income taxes	54,655		(110,712		)	(56,057		)
Net income	$	148,688	$	145,015		$	293,703
Net income per common share:
Basic	$	2.06				$	4.07
Diluted	$	2.04				$	4.03
Weighted average shares outstanding:
Basic	72,140					72,140
Diluted	72,956					72,956



	Year Ended June 30, 2017
	As Previously Reported		Adjustments			As Adjusted
	(Dollars in Thousands, Except per Share Data)
Consolidated Statements of Operations:
License revenue	$	—	$	307,259		$	307,259
Maintenance revenue	—		157,012			157,012
Subscription and software revenue	453,512		(453,512		)	—
Services and other revenue	29,430		726			30,156
Total revenue	482,942		11,485			494,427
Gross profit	435,476		11,485			446,961
Selling and marketing expense	92,633		(656		)	91,977
General and administrative expense	51,297		7,438			58,735
Total operating expenses	223,460		6,782			230,242
Income from operations	212,016		4,703			216,719
Interest income	808		22,134			22,942
Provision for income taxes	48,150		9,647			57,797
Net income	$	162,196	$	17,190		$	179,386
Net income per common share:
Basic	$	2.12				$	2.35
Diluted	$	2.11				$	2.33
Weighted average shares outstanding:
Basic	76,491					76,491
Diluted	76,978					76,978

The following table presents the effect of the adoption of Topic 606 on select consolidated balance sheet line items as of June 30, 2018:



	June 30, 2018
	As Previously Reported		Adjustments			As Restated
	(Dollars in Thousands)
Consolidated Balance Sheets:
ASSETS
Current contract assets	$	—	$	237,537		$	237,537
Contract costs	—		20,500			20,500
Accounts receivable, net	21,910		19,900			41,810
Non-current contract assets	—		319,840			319,840
Non-current deferred tax assets	11,090		(9,858		)	1,232
Total assets	264,924		587,919			852,843
LIABILITIES AND STOCKHOLDERS’ EQUITY
Current deferred revenue	286,845		(271,695		)	15,150
Non-current deferred revenue	28,259		(15,905		)	12,354
Deferred income taxes	—		184,901			184,901
Other non-current liabilities	18,492		(1,424		)	17,068
Retained earnings	305,208		692,042			997,250
Total liabilities and stockholders’ equity	$	264,924	$	587,919		$	852,843



	Year Ended June 30, 2018
	As Previously Reported		Adjustments			As Adjusted
	(Dollars in Thousands)
Consolidated Statements of Cash Flows:
Cash flows from operating activities:
Net income	$	148,688	$	145,015		$	293,703
Adjustments to reconcile net income to net cash provided by operating activities:
Deferred income taxes	3,193		(113,501		)	(110,308		)
Changes in assets and liabilities:
Contract assets	—		3,640			3,640
Contract costs	—		(617		)	(617		)
Accounts receivable	4,327		(3,481		)	846
Deferred revenue	13,700		(31,056		)	(17,356		)
Net cash provided by operating activities	$	206,936	$	—		$	206,936



	Year Ended June 30, 2017
	As Previously Reported			Adjustments			As Adjusted
	(Dollars in Thousands)
Consolidated Statements of Cash Flows:
Cash flows from operating activities:
Net income	$	162,196		$	17,190		$	179,386
Adjustments to reconcile net income to net cash provided by operating activities:
Deferred income taxes	(4,286		)	9,559			5,273
Changes in assets and liabilities:
Contract assets	—			(4,327		)	(4,327		)
Contract costs	—			(203		)	(203		)
Accounts receivable	(7,480		)	(684		)	(8,164		)
Deferred revenue	18,477			(21,535		)	(3,058		)
Net cash provided by operating activities	$	182,386		$	—		$	182,386

Intangible Assets (Policies)

12 Months Ended

Jun. 30, 2019

Goodwill and Intangible Assets Disclosure [Abstract]

Intangible Assets

Intangible assets consist of the following as of June 30, 2019 and 2018:



	Gross Carrying Amount		Accumulated Amortization			Effect of Currency Translation			Net Carrying Amount
	(Dollars in Thousands)
June 30, 2019:
Technology and patents	$	37,168	$	(8,868	)	$	(118	)	$	28,182
Customer relationships	6,503		(1,039		)	(100		)	5,364
Non-compete agreements	553		(492		)	—			61
Total	$	44,224	$	(10,399	)	$	(218	)	$	33,607
June 30, 2018:
Technology and patents	$	35,898	$	(5,182	)	$	(254	)	$	30,462
Customer relationships	5,181		(377		)	(202		)	4,602
Non-compete agreements	553		(307		)	—			246
Total	$	41,632	$	(5,866	)	$	(456	)	$	35,310

Total amortization expense related to intangible assets amounted to $4.5 million, $2.2 million and $1.0 million in fiscal 2019, 2018 and 2017, respectively.

Future amortization expense as of June 30, 2019 is expected to be as follows:



Year Ended June 30,	Amortization Expense
	(Dollars in Thousands)
2020	$	5,120
2021	5,165
2022	5,104
2023	5,019
2024	4,326
Thereafter	8,873
Total	$	33,607

Goodwill (Policies)

12 Months Ended

Jun. 30, 2019

Goodwill and Intangible Assets Disclosure [Abstract]

Goodwill

The changes in the carrying amount of goodwill for our subscription and software reporting unit during fiscal years ending June 30, 2019 and 2018 were as follows:



	Gross Carrying Amount		Accumulated Impairment Losses			Effect of Currency Translation			Net Carrying Amount
June 30, 2018:	$	142,316	$	(65,569	)	$	(1,157	)	$	75,590
Goodwill from acquisitions, net of adjustments	3,256		—			—			3,256
Foreign currency translation	—		—			(463		)	(463		)
June 30, 2019:	$	145,572	$	(65,569	)	$	(1,620	)	$	78,383

	Gross Carrying Amount		Accumulated Impairment Losses			Effect of Currency Translation			Net Carrying Amount
June 30, 2017:	$	116,833	$	(65,569	)	$	(16	)	$	51,248
Goodwill from acquisitions, net of adjustments	25,483		—			—			25,483
Foreign currency translation	—		—			(1,141		)	(1,141		)
June 30, 2018:	$	142,316	$	(65,569	)	$	(1,157	)	$	75,590

Revenue from Contracts with Customers (Tables)

12 Months Ended

Jun. 30, 2019

Revenue from Contracts with Customers [Abstract]

Disaggregation of Revenue [Table Text Block]

Disaggregation of Revenue

We disaggregate our revenue by region, type of performance obligation, timing of revenue recognition, and segment as follows:



	Year Ended June 30,
	2019		2018		2017
			As Adjusted		As Adjusted
	(Dollars in Thousands)
Revenue by region:
United States	$	219,967	$	207,266	$	158,761
Europe	155,543		126,862		166,133
Other (1)	222,835		184,731		169,533
	$	598,345	$	518,859	$	494,427

Revenue by type of performance obligation:
License	$	404,122	$	326,549	$	307,259
Maintenance	165,436		161,065		157,012
Services and other	28,787		31,245		30,156
	$	598,345	$	518,859	$	494,427

Revenue by segment:
Subscription and software	$	569,558	$	487,614	$	464,271
Services and other	28,787		31,245		30,156
	$	598,345	$	518,859	$	494,427

____________________________________________

(1)

Other consists primarily of Asia Pacific, Canada, Latin America and the Middle East.

Contract with Customer, Asset and Liability [Table Text Block]

Our contract assets and deferred revenue were as follows as of June 30, 2019 and 2018:



	June 30, 2019			June 30, 2018
				As Restated
	(Dollars in Thousands)
Contract assets	$	619,703		$	557,377
Deferred revenue	(44,891		)	(27,504		)
	$	574,812		$	529,873

Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Table Text Block]

Transaction Price Allocated to Remaining Performance Obligations



	Year Ended June 30,
	2020		2021		2022		2023		2024		Thereafter
	(Dollars in Thousands)
License	$	47,869	$	31,944	$	9,820	$	3,575	$	1,559	$	721
Maintenance	193,348		144,734		101,127		64,286		37,613		14,847
Services and other	43,679		646		594		345		74		16

Schedule of Error Corrections and Prior Period Adjustments [Table Text Block]

Impact to Prior Period Information

The following table presents the effect of the adoption of Topic 606 on select consolidated statements of operations line items for fiscal 2018 and 2017:



	Year Ended June 30, 2018
	As Previously Reported		Adjustments			As Adjusted
	(Dollars in Thousands, Except per Share Data)
Consolidated Statements of Operations:
License revenue	$	—	$	326,549		$	326,549
Maintenance revenue	—		161,065			161,065
Subscription and software revenue	471,041		(471,041		)	—
Services and other revenue	28,473		2,772			31,245
Total revenue	499,514		19,345			518,859
Gross profit	448,870		19,345			468,215
Selling and marketing expense	101,077		(1,340		)	99,737
General and administrative expense	56,076		11,105			67,181
Total operating expenses	239,229		9,765			248,994
Income from operations	209,641		9,580			219,221
Interest income	231		24,723			24,954
Provision for (benefit from) income taxes	54,655		(110,712		)	(56,057		)
Net income	$	148,688	$	145,015		$	293,703
Net income per common share:
Basic	$	2.06				$	4.07
Diluted	$	2.04				$	4.03
Weighted average shares outstanding:
Basic	72,140					72,140
Diluted	72,956					72,956



	Year Ended June 30, 2017
	As Previously Reported		Adjustments			As Adjusted
	(Dollars in Thousands, Except per Share Data)
Consolidated Statements of Operations:
License revenue	$	—	$	307,259		$	307,259
Maintenance revenue	—		157,012			157,012
Subscription and software revenue	453,512		(453,512		)	—
Services and other revenue	29,430		726			30,156
Total revenue	482,942		11,485			494,427
Gross profit	435,476		11,485			446,961
Selling and marketing expense	92,633		(656		)	91,977
General and administrative expense	51,297		7,438			58,735
Total operating expenses	223,460		6,782			230,242
Income from operations	212,016		4,703			216,719
Interest income	808		22,134			22,942
Provision for income taxes	48,150		9,647			57,797
Net income	$	162,196	$	17,190		$	179,386
Net income per common share:
Basic	$	2.12				$	2.35
Diluted	$	2.11				$	2.33
Weighted average shares outstanding:
Basic	76,491					76,491
Diluted	76,978					76,978

The following table presents the effect of the adoption of Topic 606 on select consolidated balance sheet line items as of June 30, 2018:



	June 30, 2018
	As Previously Reported		Adjustments			As Restated
	(Dollars in Thousands)
Consolidated Balance Sheets:
ASSETS
Current contract assets	$	—	$	237,537		$	237,537
Contract costs	—		20,500			20,500
Accounts receivable, net	21,910		19,900			41,810
Non-current contract assets	—		319,840			319,840
Non-current deferred tax assets	11,090		(9,858		)	1,232
Total assets	264,924		587,919			852,843
LIABILITIES AND STOCKHOLDERS’ EQUITY
Current deferred revenue	286,845		(271,695		)	15,150
Non-current deferred revenue	28,259		(15,905		)	12,354
Deferred income taxes	—		184,901			184,901
Other non-current liabilities	18,492		(1,424		)	17,068
Retained earnings	305,208		692,042			997,250
Total liabilities and stockholders’ equity	$	264,924	$	587,919		$	852,843



	Year Ended June 30, 2018
	As Previously Reported		Adjustments			As Adjusted
	(Dollars in Thousands)
Consolidated Statements of Cash Flows:
Cash flows from operating activities:
Net income	$	148,688	$	145,015		$	293,703
Adjustments to reconcile net income to net cash provided by operating activities:
Deferred income taxes	3,193		(113,501		)	(110,308		)
Changes in assets and liabilities:
Contract assets	—		3,640			3,640
Contract costs	—		(617		)	(617		)
Accounts receivable	4,327		(3,481		)	846
Deferred revenue	13,700		(31,056		)	(17,356		)
Net cash provided by operating activities	$	206,936	$	—		$	206,936



	Year Ended June 30, 2017
	As Previously Reported			Adjustments			As Adjusted
	(Dollars in Thousands)
Consolidated Statements of Cash Flows:
Cash flows from operating activities:
Net income	$	162,196		$	17,190		$	179,386
Adjustments to reconcile net income to net cash provided by operating activities:
Deferred income taxes	(4,286		)	9,559			5,273
Changes in assets and liabilities:
Contract assets	—			(4,327		)	(4,327		)
Contract costs	—			(203		)	(203		)
Accounts receivable	(7,480		)	(684		)	(8,164		)
Deferred revenue	18,477			(21,535		)	(3,058		)
Net cash provided by operating activities	$	182,386		$	—		$	182,386

ASPEN TECHNOLOGY, INC. AND SUBSIDIARIES

CONSOLIDATED BALANCE SHEETS

(Unaudited)



	June 30, 2018
	As Previously Reported		Adjustments			As Restated
	(Dollars in Thousands, Except Share and Per Share Data)
ASSETS
Current assets:
Cash and cash equivalents	$	96,165	$	—		$	96,165
Accounts receivable, net	41,810		—			41,810
Current contract assets	304,378		(66,841		)	237,537
Current contract costs	20,500		(20,500		)	—
Prepaid expenses and other current assets	10,509		—			10,509
Prepaid income taxes	2,601		—			2,601
Total current assets	475,963		(87,341		)	388,622
Property, equipment and leasehold improvements, net	9,806		—			9,806
Computer software development costs, net	646		—			646
Goodwill	75,590		—			75,590
Intangible assets, net	35,310		—			35,310



Non-current contract assets	340,622			(20,782		)	319,840
Non-current contract costs	—			20,500			20,500
Non-current deferred tax assets	11,090			(9,858		)	1,232
Other non-current assets	1,297			—			1,297
Total assets	$	950,324		$	(97,481	)	$	852,843
LIABILITIES AND STOCKHOLDERS' EQUITY
Current liabilities:
Accounts payable	$	4,230		$	—		$	4,230
Accrued expenses and other current liabilities	39,515			—			39,515
Income taxes payable	1,698			—			1,698
Borrowings under credit agreement	170,000			—			170,000
Current deferred revenue	15,150			—			15,150
Total current liabilities	230,593			—			230,593
Non-current deferred revenue	12,354			—			12,354
Deferred income taxes	214,125			(29,224		)	184,901
Other non-current liabilities	17,068			—			17,068
Commitments and contingencies
Series D redeemable convertible preferred stock, $0.10 par value—Authorized—3,636 shares as of June 30, 2018 and 2017 Issued and outstanding—none as of June 30, 2018 and 2017	—			—			—
Stockholders' equity:
Common stock, $0.10 par value—Authorized—210,000,000 shares Issued—103,130,300 shares at June 30, 2018 and 102,567,129 shares at June 30, 2017 Outstanding—71,186,701 shares at June 30, 2018 and 73,421,153 shares at June 30, 2017	10,313			—			10,313
Additional paid-in capital	715,475			—			715,475
Retained earnings	1,065,507			(68,257		)	997,250
Accumulated other comprehensive income	1,388			—			1,388
Treasury stock, at cost— 31,943,599 shares of common stock at June 30, 2018 and 29,145,976 shares at June 30, 2017	(1,316,499		)	—			(1,316,499		)
Total stockholders' equity	476,184			(68,257		)	407,927
Total liabilities and stockholders' equity	$	950,324		$	(97,481	)	$	852,843

ASPEN TECHNOLOGY, INC. AND SUBSIDIARIES

CONSOLIDATED BALANCE SHEETS

(Unaudited)



	September 30, 2018
	As Previously Reported		Adjustments			As Restated
	(Dollars in Thousands, Except Share and Per Share Data)
ASSETS
Current assets:
Cash and cash equivalents	$	52,048	$	—		$	52,048
Accounts receivable, net	53,999		(3,653		)	50,346



Current contract assets	317,967			(79,472		)	238,495
Current contract costs	21,296			(21,296		)	—
Prepaid expenses and other current assets	12,992			—			12,992
Prepaid income taxes	1,422			—			1,422
Total current assets	459,724			(104,421		)	355,303
Property, equipment and leasehold improvements, net	9,006			—			9,006
Computer software development costs, net	695			—			695
Goodwill	75,649			—			75,649
Intangible assets, net	34,192			—			34,192
Non-current contract assets	357,947			(4,498		)	353,449
Non-current contract costs	—			21,296			21,296
Non-current deferred tax assets	1,176			—			1,176
Other non-current assets	1,279			—			1,279
Total assets	$	939,668		$	(87,623	)	$	852,045
LIABILITIES AND STOCKHOLDERS' EQUITY
Current liabilities:
Accounts payable	$	2,501		$	—		$	2,501
Accrued expenses and other current liabilities	32,000			—			32,000
Income taxes payable	46,869			—			46,869
Borrowings under credit agreement	170,000			—			170,000
Current deferred revenue	23,737			—			23,737
Total current liabilities	275,107			—			275,107
Non-current deferred revenue	15,046			—			15,046
Deferred income taxes	159,563			(19,366		)	140,197
Other non-current liabilities	16,833			—			16,833
Commitments and contingencies
Series D redeemable convertible preferred stock, $0.10 par value—Authorized—3,636 shares as of September 30, 2018 and June 30, 2018 Issued and outstanding—none as of September 30, 2018 and June 30, 2018	—			—			—
Stockholders' equity:
Common stock, $0.10 par value—Authorized—210,000,000 shares Issued—103,279,138 shares at September 30, 2018 and 103,130,300 shares at June 30, 2018 Outstanding—70,862,163 shares at September 30, 2018 and 71,186,701 shares at June 30, 2018	10,328			—			10,328
Additional paid-in capital	724,752			—			724,752
Retained earnings	1,103,573			(68,257		)	1,035,316
Accumulated other comprehensive income	965			—			965
Treasury stock, at cost— 32,416,975 shares of common stock at September 30, 2018 and 31,943,599 shares at June 30, 2018	(1,366,499		)	—			(1,366,499		)
Total stockholders' equity	473,119			(68,257		)	404,862
Total liabilities and stockholders' equity	$	939,668		$	(87,623	)	$	852,045

ASPEN TECHNOLOGY, INC. AND SUBSIDIARIES

CONSOLIDATED BALANCE SHEETS

(Unaudited)



	December 31, 2018
	As Previously Reported		Adjustments			As Restated
	(Dollars in Thousands, Except Share and Per Share Data)
ASSETS
Current assets:
Cash and cash equivalents	$	54,428	$	—		$	54,428
Accounts receivable, net	56,586		(3,653		)	52,933
Current contract assets	321,135		(55,449		)	265,686
Current contract costs	23,046		(23,046		)	—
Prepaid expenses and other current assets	10,330		—			10,330
Prepaid income taxes	921		—			921
Total current assets	466,446		(82,148		)	384,298
Property, equipment and leasehold improvements, net	8,311		—			8,311
Computer software development costs, net	691		—			691
Goodwill	74,802		—			74,802
Intangible assets, net	32,889		—			32,889
Non-current contract assets	366,581		(28,521		)	338,060
Non-current contract costs	—		23,046			23,046
Non-current deferred tax assets	1,651		—			1,651
Other non-current assets	1,075		—			1,075
Total assets	$	952,446	$	(87,623	)	$	864,823
LIABILITIES AND STOCKHOLDERS' EQUITY
Current liabilities:
Accounts payable	$	5,249	$	—		$	5,249
Accrued expenses and other current liabilities	36,688		—			36,688
Income taxes payable	43,573		—			43,573
Borrowings under credit agreement	220,000		—			220,000
Current deferred revenue	23,145		—			23,145
Total current liabilities	328,655		—			328,655
Non-current deferred revenue	18,167		—			18,167
Deferred income taxes	157,238		(19,366		)	137,872
Other non-current liabilities	16,192		—			16,192
Commitments and contingencies
Series D redeemable convertible preferred stock, $0.10 par value—Authorized—3,636 shares as of December 31, 2018 and June 30, 2018 Issued and outstanding—none as of December 31, 2018 and June 30, 2018	—		—			—
Stockholders' equity:
Common stock, $0.10 par value—Authorized—210,000,000 shares Issued—103,395,683 shares at December 31, 2018 and 103,130,300 shares at June 30, 2018 Outstanding—69,803,177 shares at December 31, 2018 and 71,186,701 shares at June 30, 2018	10,340		—			10,340
Additional paid-in capital	725,493		—			725,493
Retained earnings	1,162,790		(68,257		)	1,094,533



Accumulated other comprehensive income	70			—			70
Treasury stock, at cost— 33,592,506 shares of common stock at December 31, 2018 and 31,943,599 shares at June 30, 2018	(1,466,499		)	—			(1,466,499		)
Total stockholders' equity	432,194			(68,257		)	363,937
Total liabilities and stockholders' equity	$	952,446		$	(87,623	)	$	864,823

ASPEN TECHNOLOGY, INC. AND SUBSIDIARIES

CONSOLIDATED BALANCE SHEETS

(Unaudited)



	March 31, 2019
	As Previously Reported		Adjustments			As Restated
	(Dollars in Thousands, Except Share and Per Share Data)
ASSETS
Current assets:
Cash and cash equivalents	$	65,592	$	—		$	65,592
Accounts receivable, net	45,293		(3,653		)	41,640
Current contract assets	314,745		(44,013		)	270,732
Current contract costs	24,325		(24,325		)	—
Prepaid expenses and other current assets	11,124		—			11,124
Prepaid income taxes	1,573		—			1,573
Total current assets	462,652		(71,991		)	390,661
Property, equipment and leasehold improvements, net	7,589		—			7,589
Computer software development costs, net	1,452		—			1,452
Goodwill	73,534		—			73,534
Intangible assets, net	31,756		—			31,756
Non-current contract assets	358,709		(39,957		)	318,752
Non-current contract costs	—		24,325			24,325
Non-current deferred tax assets	1,696		—			1,696
Other non-current assets	1,279		—			1,279
Total assets	$	938,667	$	(87,623	)	$	851,044
LIABILITIES AND STOCKHOLDERS' EQUITY
Current liabilities:
Accounts payable	$	4,023	$	—		$	4,023
Accrued expenses and other current liabilities	42,746		—			42,746
Income taxes payable	35,582		—			35,582
Borrowings under credit agreement	220,000		—			220,000
Current deferred revenue	24,415		—			24,415
Total current liabilities	326,766		—			326,766
Non-current deferred revenue	19,312		—			19,312
Deferred income taxes	154,901		(19,366		)	135,535
Other non-current liabilities	12,403		—			12,403



Commitments and contingencies
Series D redeemable convertible preferred stock, $0.10 par value—Authorized—3,636 shares as of March 31, 2019 and June 30, 2018 Issued and outstanding—none as of March 31, 2019 and June 30, 2018	—			—			—
Stockholders' equity:
Common stock, $0.10 par value—Authorized—210,000,000 shares Issued—103,478,590 shares at March 31, 2019 and 103,130,300 shares at June 30, 2018 Outstanding—69,108,515 shares at March 31, 2019 and 71,186,701 shares at June 30, 2018	10,348			—			10,348
Additional paid-in capital	730,830			—			730,830
Retained earnings	1,224,377			(68,257		)	1,156,120
Accumulated other comprehensive income	1,229			—			1,229
Treasury stock, at cost— 34,370,075 shares of common stock at March 31, 2019 and 31,943,599 shares at June 30, 2018	(1,541,499		)	—			(1,541,499		)
Total stockholders' equity	425,285			(68,257		)	357,028
Total liabilities and stockholders' equity	$	938,667		$	(87,623	)	$	851,044

Accounts Receivable (Tables)

12 Months Ended

Jun. 30, 2019

Fair Value [Abstract]

Schedule of Accounts, Notes, Loans and Financing Receivable [Table Text Block]

Our accounts receivable, net of the related allowance for doubtful accounts, were as follows as of June 30, 2019 and 2018:



	June 30, 2019			June 30, 2018
				As Restated
	(Dollars in Thousands)
Accounts receivable, gross	$	51,133		$	44,513
Allowance for doubtful accounts	(3,349		)	(2,703		)
Accounts receivable, net	$	47,784		$	41,810

Property and Equipment (Tables)

12 Months Ended

Jun. 30, 2019

Property, Plant and Equipment [Abstract]

Property, equipment and leasehold improvements

Property, equipment and leasehold improvements in the accompanying consolidated balance sheets consist of the following:



	Year Ended June 30,
	2019			2018
	(Dollars in Thousands)
Property, equipment and leasehold improvements, at cost:
Computer equipment	$	6,642		$	8,344
Purchased software	22,793			24,225
Furniture & fixtures	6,794			6,850
Leasehold improvements	12,232			12,023
Property, equipment and leasehold improvements, at cost	48,461			51,442
Accumulated depreciation	(41,227		)	(41,636		)
Property, equipment and leasehold improvements, net	$	7,234		$	9,806

Acquisitions (Tables)

12 Months Ended

Jun. 30, 2019

Business Combinations [Abstract]

Schedule of recognized identified assets acquired and liabilities assumed

A preliminary allocation of the initial purchase price is as follows:



	Amount
	(Dollars in Thousands)
Tangible assets acquired, net	$	355
Identifiable intangible assets:
Technology-related	1,525
Customer relationships	1,525
Goodwill	4,783
Deferred tax liabilities	(564		)
Total assets acquired, net	$	7,624

An allocation of the purchase price is as follows:



	Amount
	(Dollars in Thousands)
Tangible assets acquired, net	$	360
Identifiable intangible assets:
Technology-related	4,500
Customer relationships	3,800
Goodwill	15,959
Deferred tax liabilities	(1,619		)
Total assets acquired, net	$	23,000

Intangible Assets (Tables)

12 Months Ended

Jun. 30, 2019

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block]

Future amortization expense as of June 30, 2019 is expected to be as follows:



Year Ended June 30,	Amortization Expense
	(Dollars in Thousands)
2020	$	5,120
2021	5,165
2022	5,104
2023	5,019
2024	4,326
Thereafter	8,873
Total	$	33,607

Intangible assets

Intangible assets consist of the following as of June 30, 2019 and 2018:



	Gross Carrying Amount		Accumulated Amortization			Effect of Currency Translation			Net Carrying Amount
	(Dollars in Thousands)
June 30, 2019:
Technology and patents	$	37,168	$	(8,868	)	$	(118	)	$	28,182
Customer relationships	6,503		(1,039		)	(100		)	5,364
Non-compete agreements	553		(492		)	—			61
Total	$	44,224	$	(10,399	)	$	(218	)	$	33,607
June 30, 2018:
Technology and patents	$	35,898	$	(5,182	)	$	(254	)	$	30,462
Customer relationships	5,181		(377		)	(202		)	4,602
Non-compete agreements	553		(307		)	—			246
Total	$	41,632	$	(5,866	)	$	(456	)	$	35,310

Goodwill (Tables)

12 Months Ended

Jun. 30, 2019

Goodwill and Intangible Assets Disclosure [Abstract]

Changes in carrying amount of goodwill by reporting unit

The changes in the carrying amount of goodwill for our subscription and software reporting unit during fiscal years ending June 30, 2019 and 2018 were as follows:



	Gross Carrying Amount		Accumulated Impairment Losses			Effect of Currency Translation			Net Carrying Amount
June 30, 2018:	$	142,316	$	(65,569	)	$	(1,157	)	$	75,590
Goodwill from acquisitions, net of adjustments	3,256		—			—			3,256
Foreign currency translation	—		—			(463		)	(463		)
June 30, 2019:	$	145,572	$	(65,569	)	$	(1,620	)	$	78,383

	Gross Carrying Amount		Accumulated Impairment Losses			Effect of Currency Translation			Net Carrying Amount
June 30, 2017:	$	116,833	$	(65,569	)	$	(16	)	$	51,248
Goodwill from acquisitions, net of adjustments	25,483		—			—			25,483
Foreign currency translation	—		—			(1,141		)	(1,141		)
June 30, 2018:	$	142,316	$	(65,569	)	$	(1,157	)	$	75,590

Accrued Expenses and Other Liabilities (Tables)

12 Months Ended

Jun. 30, 2019

Balance Sheet Related Disclosures [Abstract]

Accrued expenses and other current liabilities

Accrued expenses and other current liabilities in the accompanying consolidated balance sheets consist of the following:



	June 30, 2019		June 30, 2018
	(Dollars in Thousands)
Compensation-related	$	27,147	$	21,796
Deferred acquisition payments	4,600		1,700
Uncertain tax positions	3,751		—
Royalties and outside commissions	3,665		3,333
Share repurchases	2,432		1,646
Professional fees	3,053		1,695
Deferred rent	1,331		1,188
Other	8,615		8,157
Total accrued expenses and other current liabilities	$	54,594	$	39,515

Other non-current liabilities

Other non-current liabilities in the accompanying consolidated balance sheets consist of the following:



	June 30, 2019		June 30, 2018
			As Adjusted
	(Dollars in Thousands)
Deferred rent	$	5,187	$	6,442
Uncertain tax positions	2,274		4,510
Deferred acquisition payments	1,524		4,294
Asset retirement obligations	914		916
Other	482		906
Total other non-current liabilities	$	10,381	$	17,068

Stock-Based Compensation (Tables)

12 Months Ended

Jun. 30, 2019

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Weighted average assumptions

We utilized the Black-Scholes option valuation model with the following weighted average assumptions:



	Year Ended June 30,
	2019		2018		2017
Risk-free interest rate	2.8	%	1.7	%	1.2	%
Expected dividend yield	None		None		None
Expected life (in years)	4.6		4.6		4.6
Expected volatility factor	26.6	%	28.0	%	31.3	%

Stock-based compensation expense

The stock-based compensation expense and its classification in the accompanying consolidated statements of operations for fiscal 2019, 2018 and 2017 was as follows:



	Year Ended June 30,
	2019		2018		2017
			As Adjusted		As Adjusted
	(Dollars in Thousands)
Recorded as expenses:
Cost of maintenance	$	1,282	$	559	$	564
Cost of service and other	1,420		920		913
Selling and marketing	4,849		3,862		3,652
Research and development	6,923		7,617		5,806
General and administrative	13,099		9,730		7,865
Total stock-based compensation	$	27,573	$	22,688	$	18,800

Stock options and RSU activity

A summary of stock option and RSU activity under all equity plans in fiscal 2019 is as follows:



	Stock Options							Restricted Stock Units
	Shares		Weighted Average Exercise Price		Weighted Average Remaining Contractual Term	Aggregate Intrinsic Value (in 000's)		Shares		Weighted Average Grant Date Fair Value
Outstanding at June 30, 2018	1,369,442		$	45.93	7.23	$	64,103	621,700		$	53.64
Granted	282,798		113.88					645,146		114.72
Settled (RSUs)								(392,364	)	60.51
Exercised	(252,975	)	39.24
Cancelled / Forfeited	(95,248	)	68.25					(80,764	)	68.58
Outstanding at June 30, 2019	1,304,017		$	60.33	6.94	$	83,388	793,718		$	98.38
Exercisable at June 30, 2019	842,746		$	48.81	6.11	$	63,598
Vested and expected to vest at June 30, 2019	1,249,802		$	59.52	6.87	$	80,935	748,240		$	99.36

Net Income Per Share Net Income Per Share - Employee Equity Awards Excluded from the Calculation of Dilutive Weighted Average Shares Outstanding (Tables)

12 Months Ended

Jun. 30, 2019

Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table Text Block]

average shares outstanding because their effect would be anti-dilutive as of the balance sheet date:



	Year Ended June 30,
	2019	2018	2017
	(Shares in Thousands)
Employee equity awards	784	419	525

Net Income Per Share Net Income Per Share - Calculations of Basic and Diluted Net Income per Share and Basic and Dilutive Weighted Average Shares Outstanding (Tables)

12 Months Ended

Jun. 30, 2019

Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]

The calculations of basic and diluted net income per share and basic and dilutive weighted average shares outstanding for the years ended June 30, 2019, 2018 and 2017 are as follows:



	Year Ended June 30,
	2019		2018		2017
			As Adjusted		As Adjusted
	(Dollars and Shares in Thousands, Except per Share Data)
Net income	$	262,734	$	293,703	$	179,386

Weighted average shares outstanding	69,925		72,140		76,491
Dilutive impact from:
Employee equity awards	862		816		487
Dilutive weighted average shares outstanding	70,787		72,956		76,978
Income per share
Basic	$	3.76	$	4.07	$	2.35
Dilutive	$	3.71	$	4.03	$	2.33

Income Taxes (Tables)

12 Months Ended

Jun. 30, 2019

Income Tax Disclosure [Abstract]

Income before provision for income taxes

Income before provision for income taxes consists of the following:



	Year Ended June 30,
	2019		2018		2017
			As Adjusted		As Adjusted
	(Dollars in Thousands)
Domestic	$	298,665	$	229,745	$	228,890
Foreign	4,525		7,901		8,293
Income before provision for income taxes	$	303,190	$	237,646	$	237,183

Provision for income taxes

The provision for income taxes shown in the accompanying consolidated statements of operations is composed of the following:



	Year Ended June 30,
	2019			2018			2017
				As Adjusted			As Adjusted
	(Dollars in Thousands)
Federal—
Current	$	64,194		$	47,734		$	69,385
Deferred	(26,983		)	(108,867		)	(13,110		)
State—
Current	3,246			1,471			1,737
Deferred	(1,026		)	1,042			(771		)
Foreign—
Current	1,549			2,296			2,067
Deferred	(524		)	267			(1,511		)
	$	40,456		$	(56,057	)	$	57,797

Income tax reconciliation based on federal statutory rate

The provision for income taxes differs from that based on the federal statutory rate due to the following:



	Year Ended June 30,
	2019			2018			2017
				As Adjusted			As Adjusted
	(Dollars in Thousands)
Federal tax provision at statutory rate	$	63,670		$	66,683		$	83,014
State income taxes	1,540			1,503			1,167
Remeasurement of deferred taxes	—			(115,536		)	—
Foreign-derived intangible income (FDII)	(20,326		)	—			—
Global intangible low-taxed income (GILTI)	797			—			—
Effect of foreign operations	7,395			4,700			2,912
Foreign taxes and rate differences	514			(164		)	(206		)
Stock-based compensation	(3,774		)	(2,951		)	991
Tax credits	(9,677		)	(7,913		)	(6,614		)
Uncertain tax positions	1,055			(185		)	(19,645		)
Return to provision adjustments	(482		)	(488		)	464
Domestic production activity deduction	—			(4,869		)	(6,261		)
Valuation allowance	(550		)	2,326			1,522
Other	294			837			453
Provision for income taxes	$	40,456		$	(56,057	)	$	57,797

Deferred tax assets and liabilities

Net deferred tax liabilities consist of the following at June 30, 2019 and 2018:



	Year Ended June 30,
	2019			2018
				As Restated
	(Dollars in Thousands)
Deferred tax assets:
Federal and state credits	$	4,055		$	4,363
Capital loss carryforwards	—			4,856
Net operating loss carryforwards	906			1,452
Deferred revenue	5,252			3,163
Other reserves and accruals	6,082			6,550
Intangible assets	1,020			1,015
Property, leasehold improvements, and other basis differences	1,433			1,646
Other temporary differences	453			450
	19,201			23,495
Deferred tax liabilities:
Contract assets and costs	(156,346		)	(121,631		)
Deferred revenue	(8,610		)	(68,546		)
Intangible assets	(5,635		)	(5,231		)
Property, leasehold improvements, and other basis differences	(1,146		)	(1,340		)
	(171,737		)	(196,748		)
Valuation allowance	(4,866		)	(10,416		)
Net deferred tax liabilities	$	(157,402	)	$	(183,669	)

Reconciliation of reserve for uncertain tax positions

A reconciliation of the reserve for uncertain tax positions is as follows:



	Year Ended June 30,
	2019			2018			2017
				As Adjusted			As Adjusted
	(Dollars in Thousands)
Uncertain tax positions, beginning of year	$	3,931		$	3,921		$	23,535
Gross increases (decreases) —tax positions in prior period	407			544			(19,116		)
Gross increases—tax positions in current period	1,789			—			—
Gross decreases—lapse of statutes	(740		)	(637		)	(830		)
Currency translation adjustment	(7		)	103			332
Uncertain tax positions, end of year	$	5,380		$	3,931		$	3,921

Commitments and Contingencies (Tables)

12 Months Ended

Jun. 30, 2019

Commitments and Contingencies Disclosure [Abstract]

Schedule of future minimum lease payments

Future minimum lease payments under these leases as of June 30, 2019 are as follows:



Year Ended June 30,	Operating Leases
	(Dollars in Thousands)
2020	$	8,399
2021	7,820
2022	6,514
2023	5,862
2024	4,932
Thereafter	3,307
Total	$	36,834

Segment and Geographic Information (Tables)

12 Months Ended

Jun. 30, 2019

Segment Reporting [Abstract]

Summary of reportable segments' profits

The following table presents a summary of our reportable segments' profits:



	Subscription and Software			Services and Other			Total
	(Dollars in Thousands)
Year Ended June 30, 2019:
Segment revenue	$	569,558		$	28,787		$	598,345
Segment expenses(1)	(220,764		)	(31,548		)	(252,312		)
Segment profit	$	348,794		$	(2,761	)	$	346,033
Year Ended June 30, 2018, As Adjusted:
Segment revenue	$	487,614		$	31,245		$	518,859
Segment expenses(1)	(204,457		)	(28,000		)	(232,457		)
Segment profit	$	283,157		$	3,245		$	286,402
Year Ended June 30, 2017, As Adjusted:
Segment revenue	$	464,271		$	30,156		$	494,427
Segment expenses(1)	(192,559		)	(26,414		)	(218,973		)
Segment profit	$	271,712		$	3,742		$	275,454

____________________________________________

(1)

Our reportable segments’ operating expenses include expenses directly attributable to the segments. Segment expenses include selling and marketing and research and development expenses. Segment expenses do not include allocations of general and administrative expense; interest income, net; and other (expense), net.

Reconciliation of total segment operating profit to income before provision for income taxes

The following table presents a reconciliation of total segment operating profit to income before provision for income taxes:



	Year Ended June 30,
	2019			2018			2017
				As Adjusted			As Adjusted
	(Dollars in Thousands)
Total segment profit for reportable segments	$	346,033		$	286,402		$	275,454
General and administrative	(63,231		)	(67,181		)	(58,735		)
Interest income	28,457			24,954			22,942
Interest (expense)	(8,733		)	(5,691		)	(3,787		)
Other (expense) income, net	664			(838		)	1,309
Income before income taxes	$	303,190		$	237,646		$	237,183

Domestic and international Sales as a Percentage of total revenue

Quarterly Financial Data (Unaudited) (Tables)

12 Months Ended

Jun. 30, 2019

Quarterly Financial Data [Abstract]

Quarterly consolidated statement of operations data



	Three Months Ended
	June 30, 2019		March 31, 2019		December 31, 2018		September 30, 2018
	(Dollars and Shares in Thousands, Except per Share Data)
Total revenue	$	195,769	$	147,984	$	140,423	$	114,169
Gross profit	180,279		133,624		125,684		100,942
Income from operations	111,223		70,831		63,758		36,990
Net income	103,865		61,587		59,217		38,066
Net income per common share:
Basic	$	1.51	$	0.89	$	0.84	$	0.54
Diluted	$	1.49	$	0.88	$	0.83	$	0.53
Weighted average shares outstanding:
Basic	68,839		69,423		70,428		70,988
Diluted	69,638		70,160		71,148		72,015



	Three Months Ended
	June 30, 2018		March 31, 2018		December 31, 2017		September 30, 2017
	As Adjusted
	(Dollars and Shares in Thousands, Except per Share Data)
Total revenue	$	159,084	$	127,759	$	105,529	$	126,487
Gross profit	146,037		114,983		93,440		113,755
Income from operations	79,784		53,620		30,104		55,714
Net income	76,646		44,506		132,030		40,521
Net income per common share:
Basic	$	1.07	$	0.62	$	1.83	$	0.55
Diluted	$	1.06	$	0.61	$	1.81	$	0.55
Weighted average shares outstanding:
Basic	71,349		71,828		72,342		73,024
Diluted	72,315		72,663		73,036		73,609

Schedule II - Valuation and Qualifying Accounts Schedule II - Valuation and Qualifying Accounts (Tables)

12 Months Ended

Jun. 30, 2019

SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items]

Allowance for Credit Losses on Financing Receivables [Table Text Block]

Schedule II - Valuation and Qualifying Accounts



Description	Balance at Beginning of Year			Additions: Charges to Costs and Expenses			Deductions: Returns and Write-Offs		Balance at End of Year
	(Dollars in Thousands)
Year ended June 30, 2019 Allowance for doubtful accounts	$	(2,703	)	$	(1,621	)	$	975	$	(3,349	)
Year ended June 30, 2018, As Adjusted Allowance for doubtful accounts	(1,285		)	(2,463		)	1,045		(2,703		)
Year ended June 30, 2017, As Adjusted Allowance for doubtful accounts	(1,604		)	(1,338		)	1,657		(1,285		)

Operations - Narrative (Details)	Jun. 30, 2019 country
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Number of countries of operations	32

Significant Accounting Policies - Computer Software Development Costs (Details) - Computer Software Development Costs - USD ($) $ in Millions	12 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2017
Computer Software Development Costs for Internal Use
Maximum period over which amortization of computer software development costs provided on a product-by-product basis using straight-line method	3 years
Computer software cost capitalized	$ 1.1	$ 0.4	$ 0.4
Amortization expense charged to operations	0.5	0.4	$ 0.5
Computer software development accumulated amortization	$ 75.1	$ 74.7
Weighted average remaining useful life of computer software development costs	2 years 6 months	1 year

Significant Accounting Policies - Foreign Currency Translation (Details) - USD ($) $ in Millions	12 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2017
Foreign Currency Transactions
Net foreign currency transaction and remeasurement gains (losses)	$ 0.7	$ (0.8)	$ 0.6

Significant Accounting Policies - Concentration of Credit Risk (Details)	12 Months Ended
	Jun. 30, 2019	Jun. 30, 2018
Concentration Risk [Line Items]
Concentration risk, number of customers	no	one
Customer One \| Accounts and installments receivable \| Customers concentration risk
Concentration of Credit Risk
Percentage of total receivables	10.00%
Accounting Standards Update 2014-09 (Topic 606) [Member] \| Customer One \| Accounts and installments receivable \| Customers concentration risk
Concentration of Credit Risk
Percentage of total receivables		12.00%

Significant Accounting Policies - Computer Software Developed For Internal Use (Details) - USD ($) $ in Millions	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2017
Software Development
Computer Software Development Costs for Internal Use
Capitalized costs for computer software developed for internal use, net	$ 0.0	$ 0.0	$ 0.0

Significant Accounting Policies - Comprehensive Income (Details) - USD ($) $ in Millions	Jun. 30, 2019	Jun. 30, 2018
Comprehensive Income
Foreign translation adjustments	$ 0.3	$ 1.4

Significant Accounting Policies - Advertising Costs & Research and Development Expense (Details) - USD ($) $ in Millions	12 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2017
Advertising expenses
Advertising expenses	$ 4.4	$ 3.2	$ 3.2
Research and Development Expense
Technology acquired			$ 2.3

Significant Accounting Policies Significant Accounting Policies - Recently Issued Accounting Pronouncements (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2017
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Total revenue	$ 195,769	$ 147,984	$ 140,423	$ 114,169
Interest and Other Income									$ 28,457	$ 231	$ 808
Excess Tax Benefit from Share-based Compensation, Operating Activities									0
Research and Development Expense											2,300
Accounting Standards Update 2014-09 (Topic 606) [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Total revenue					$ 159,084	$ 127,759	$ 105,529	$ 126,487
Interest and Other Income										24,954	22,942
Excess Tax Benefit from Share-based Compensation, Operating Activities										0	$ 5,965
Accounting Standards Update 2016-09 [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Increase (Decrease) in Income Taxes									$ 3,800	$ 3,000
EffectiveIncomeTaxRateReconciliationChangeInTaxRateDueToExcessTaxBenefitsRecognizedFromShareBasedCompensation									(1.00%)	1.00%
Accounting Standards Update 2018-15 [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Computer software cost capitalized									$ 800
Research and Development Expense									100
Minimum \| Accounting Standards Update 2016-02 [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Operating Lease, Right-of-Use Asset	32,000								32,000
Operating Lease, Liability	32,000								32,000
Maximum \| Accounting Standards Update 2016-02 [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Operating Lease, Right-of-Use Asset	36,000								36,000
Operating Lease, Liability	$ 36,000								$ 36,000

Significant Accounting Policies Significant Accounting Policies - Income Taxes (Details)	Jun. 30, 2019
Significant Accounting Policies - Income Taxes (Details) [Abstract]
Tax Benefit, Percent Recognized	50.00%

Revenue from Contracts with Customers Contract Balances (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2019	Jun. 30, 2018
Recognized Deferred Revenue	$ 14,000
Contract assets	619,703
Deferred revenue	(44,891)
Net contract assets	$ 574,812
Accounting Standards Update 2014-09 (Topic 606) [Member]
Contract assets		$ 557,377
Deferred revenue		(27,504)
Net contract assets		$ 529,873

Revenue from Contracts with Customers Contract Costs (Details)	Jun. 30, 2019
Minimum
Contract costs, amortization period	4 years
Maximum
Contract costs, amortization period	8 years

Revenue from Contracts with Customers Disaggregation of Revenue (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2017
Revenue	$ 598,345	$ 499,514	$ 482,942
License [Member]
Revenue	404,122	0	0
Maintenance [Member]
Revenue	165,436	0	0
Services and other [Member]
Revenue	28,787	28,473	29,430
Accounting Standards Update 2014-09 (Topic 606) [Member]
Revenue		518,859	494,427
Accounting Standards Update 2014-09 (Topic 606) [Member] \| License [Member]
Revenue		326,549	307,259
Accounting Standards Update 2014-09 (Topic 606) [Member] \| Maintenance [Member]
Revenue		161,065	157,012
Accounting Standards Update 2014-09 (Topic 606) [Member] \| Services and other [Member]
Revenue		31,245	30,156
United States
Revenue	219,967
United States \| Accounting Standards Update 2014-09 (Topic 606) [Member]
Revenue		207,266	158,761
Europe
Revenue	155,543
Europe \| Accounting Standards Update 2014-09 (Topic 606) [Member]
Revenue		126,862	166,133
Other [Member]
Revenue	222,835
Other [Member] \| Accounting Standards Update 2014-09 (Topic 606) [Member]
Revenue		184,731	169,533
Subscription and software
Revenue	569,558
Subscription and software \| Accounting Standards Update 2014-09 (Topic 606) [Member]
Revenue		487,614	464,271
Services and other
Revenue	$ 28,787
Services and other \| Accounting Standards Update 2014-09 (Topic 606) [Member]
Revenue		$ 31,245	$ 30,156

Revenue from Contracts with Customers Impact to Prior Period Information (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended								12 Months Ended
	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2016
Current contract assets	$ 294,193				$ 0				$ 294,193	$ 0
Revenue									598,345	499,514	$ 482,942
Subscription and software revenue										471,041	453,512
Gross profit	180,279	$ 133,624	$ 125,684	$ 100,942					540,529	448,870	435,476
Selling and marketing									111,374	101,077	92,633
General and administrative									63,231	56,076	51,297
Total operating expenses									257,727	239,229	223,460
Income from operations	111,223	70,831	63,758	36,990					282,802	209,641	212,016
Interest income									28,457	231	808
Provision for (benefit from) income taxes									40,456	54,655	48,150
Net income	$ 103,865	$ 61,587	$ 59,217	$ 38,066					$ 262,734	$ 148,688	$ 162,196
Basic (in dollars per share)	$ 1.51	$ 0.89	$ 0.84	$ 0.54					$ 3.76	$ 2.06	$ 2.12
Earnings Per Share, Diluted	$ 1.49	$ 0.88	$ 0.83	$ 0.53					$ 3.71	$ 2.04	$ 2.11
Basic (in shares)	68,839	69,423	70,428	70,988					69,925	72,140	76,491
Diluted (in shares)	69,638	70,160	71,148	72,015					70,787	72,956	76,978
Contract costs	$ 24,982				0				$ 24,982	$ 0
Accounts receivable, net	47,784				21,910				47,784	21,910
Non-current contract assets	325,510				0				325,510	0
Non-current deferred tax assets	1,669				11,090				1,669	11,090
Assets	903,065				264,924				903,065	264,924
Current deferred revenue	25,318				286,845				25,318	286,845
Non-current deferred revenue	19,573				28,259				19,573	28,259
Deferred income taxes	159,071				0				159,071	0
Other non-current liabilities	10,381				18,492				10,381	18,492
Retained earnings	1,259,984				305,208				1,259,984	305,208
Total liabilities and stockholders' equity	$ 903,065				264,924				903,065	264,924
Deferred income taxes									(26,839)	3,193	$ (4,286)
Contract assets									(59,322)	0	0
Contract costs									(4,482)	0	0
Accounts receivable									(6,626)	(4,327)	(7,480)
Deferred revenue									17,799	13,700	18,477
Net cash provided by operating activities									238,313	206,936	182,386
License [Member]
Revenue									404,122	0	0
Maintenance [Member]
Revenue									165,436	0	0
Services and other [Member]
Revenue									28,787	28,473	29,430
Accounting Standards Update 2014-09 (Topic 606) [Member]
Current contract assets		$ 270,732	$ 265,686	$ 238,495	237,537					237,537
Revenue										518,859	494,427
Subscription and software revenue										0	0
Gross profit					146,037	$ 114,983	$ 93,440	$ 113,755		468,215	446,961
Selling and marketing										99,737	91,977
General and administrative										67,181	58,735
Total operating expenses										248,994	230,242
Income from operations					79,784	53,620	30,104	55,714		219,221	216,719
Interest income										24,954	22,942
Provision for (benefit from) income taxes										(56,057)	57,797
Net income					$ 76,646	$ 44,506	$ 132,030	$ 40,521		$ 293,703	$ 179,386
Basic (in dollars per share)					$ 1.07	$ 0.62	$ 1.83	$ 0.55		$ 4.07	$ 2.35
Earnings Per Share, Diluted					$ 1.06	$ 0.61	$ 1.81	$ 0.55		$ 4.03	$ 2.33
Basic (in shares)					71,349	71,828	72,342	73,024		72,140	76,491
Diluted (in shares)					72,315	72,663	73,036	73,609		72,956	76,978
Contract costs		24,325	23,046	21,296	$ 20,500					$ 20,500
Accounts receivable, net		41,640	52,933	50,346	41,810					41,810
Non-current contract assets		318,752	338,060	353,449	319,840					319,840
Non-current deferred tax assets		1,696	1,651	1,176	1,232					1,232
Assets		851,044	864,823	852,045	852,843					852,843
Current deferred revenue		24,415	23,145	23,737	15,150					15,150
Non-current deferred revenue		19,312	18,167	15,046	12,354					12,354
Deferred income taxes		135,535	137,872	140,197	184,901					184,901
Other non-current liabilities		12,403	16,192	16,833	17,068					17,068
Retained earnings		1,156,120	1,094,533	1,035,316	997,250					997,250
Total liabilities and stockholders' equity		$ 851,044	$ 864,823	$ 852,045	852,843					852,843
Deferred income taxes										(110,308)	$ 5,273
Contract assets										3,640	(4,327)
Contract costs										(617)	(203)
Accounts receivable										846	(8,164)
Deferred revenue										(17,356)	(3,058)
Net cash provided by operating activities										206,936	182,386
Accounting Standards Update 2014-09 (Topic 606) [Member] \| License [Member]
Revenue										326,549	307,259
Accounting Standards Update 2014-09 (Topic 606) [Member] \| Maintenance [Member]
Revenue										161,065	157,012
Accounting Standards Update 2014-09 (Topic 606) [Member] \| Services and other [Member]
Revenue										31,245	30,156
Adjustments for Topic 606
Current contract assets					237,537					237,537
Revenue										19,345	11,485
Subscription and software revenue										(471,041)	(453,512)
Gross profit										19,345	11,485
Selling and marketing										(1,340)	(656)
General and administrative										11,105	7,438
Total operating expenses										9,765	6,782
Income from operations										9,580	4,703
Interest income										24,723	22,134
Provision for (benefit from) income taxes										(110,712)	9,647
Net income										145,015	17,190
Contract costs					20,500					20,500
Accounts receivable, net					19,900					19,900
Non-current contract assets					319,840					319,840
Non-current deferred tax assets					(9,858)					(9,858)
Assets					587,919					587,919
Current deferred revenue					(271,695)					(271,695)
Non-current deferred revenue					(15,905)					(15,905)
Deferred income taxes					184,901					184,901
Other non-current liabilities					(1,424)					(1,424)
Retained earnings					692,042					692,042		$ 529,837
Total liabilities and stockholders' equity					$ 587,919					587,919
Deferred income taxes										(113,501)	9,559
Contract assets										3,640	(4,327)
Contract costs										(617)	(203)
Accounts receivable										3,481	(684)
Deferred revenue										(31,056)	(21,535)
Net cash provided by operating activities										0	0
Adjustments for Topic 606 \| License [Member]
Revenue										326,549	307,259
Adjustments for Topic 606 \| Maintenance [Member]
Revenue										161,065	157,012
Adjustments for Topic 606 \| Services and other [Member]
Revenue										2,772	726
Subscription and software
Revenue									$ 569,558
Subscription and software \| Accounting Standards Update 2014-09 (Topic 606) [Member]
Revenue										$ 487,614	$ 464,271

Fair Value (Details) - USD ($) $ in Millions	Jun. 30, 2019	Jun. 30, 2018
Fair Value, Inputs, Level 1 [Member]
Cash and Cash Equivalents, Fair Value Disclosure	$ 1.0	$ 5.0

Accounts Receivable (Details) - USD ($) $ in Thousands	12 Months Ended
Accounts Receivable (Details) - USD ($) $ in Thousands	Jun. 30, 2019	Jun. 30, 2018	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2017	Jun. 30, 2016
Accounts receivable, gross	$ 51,133
Allowance for doubtful accounts	(3,349)
Accounts receivable, net	$ 47,784	$ 21,910
Concentration risk, number of customers	no	one
Accounts Receivable [Member] \| Customer Concentration Risk [Member] \| Customer One [Member]
Percentage of total receivables	10.00%
Accounting Standards Update 2014-09 (Topic 606) [Member]
Accounts receivable, gross		$ 44,513
Allowance for doubtful accounts		(2,703)				$ (1,285)	$ (1,604)
Accounts receivable, net		$ 41,810	$ 41,640	$ 52,933	$ 50,346
Accounting Standards Update 2014-09 (Topic 606) [Member] \| Accounts Receivable [Member] \| Customer Concentration Risk [Member] \| Customer One [Member]
Percentage of total receivables		12.00%

Property and Equipment - Property, Equipment and Leasehold Improvements (Details) - USD ($) $ in Thousands	Jun. 30, 2019	Jun. 30, 2018
Property, Plant and Equipment [Line Items]
Property, equipment and leasehold improvements, at cost	$ 48,461	$ 51,442
Accumulated depreciation	(41,227)	(41,636)
Property, equipment and leasehold improvements, net	7,234	9,806
Computer equipment
Property, Plant and Equipment [Line Items]
Property, equipment and leasehold improvements, at cost	6,642	8,344
Purchased software
Property, Plant and Equipment [Line Items]
Property, equipment and leasehold improvements, at cost	22,793	24,225
Furniture & fixtures
Property, Plant and Equipment [Line Items]
Property, equipment and leasehold improvements, at cost	6,794	6,850
Leasehold improvements
Property, Plant and Equipment [Line Items]
Property, equipment and leasehold improvements, at cost	$ 12,232	$ 12,023

Property and Equipment - Narrative (Details) - USD ($) $ in Millions	12 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2017
Property, Plant and Equipment [Abstract]
Fully depreciated property, equipment and leasehold improvements written-off, gross book value	$ 3.5	$ 0.1
Depreciation	3.1	3.9	$ 5.0
Asset retirement obligation	$ 0.9	$ 0.9

Property and Equipment - Estimate Useful Lives of Property and Equipment (Details)	12 Months Ended
	Jun. 30, 2019
Computer equipment
Property and Equipment
Estimated Useful Life	3 years
Purchased software \| Minimum
Property and Equipment
Estimated Useful Life	3 years
Purchased software \| Maximum
Property and Equipment
Estimated Useful Life	5 years
Furniture & fixtures \| Minimum
Property and Equipment
Estimated Useful Life	3 years
Furniture & fixtures \| Maximum
Property and Equipment
Estimated Useful Life	10 years

Acquisitions - Narrative (Details) - USD ($) $ in Thousands				12 Months Ended
Acquisitions - Narrative (Details) - USD ($) $ in Thousands	Jul. 12, 2019	Jun. 12, 2019	Feb. 05, 2018	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2017
Acquisition
Net foreign currency transaction and remeasurement losses				$ (700)	$ 800	$ (600)
Payments for business acquisitions, net of cash acquired				1,700
Goodwill				$ 78,383
Apex Optimisation [Member]
Business Acquisition [Line Items]
Weighted Average Discount Rate				28.00%
Business Combination, Consideration Transferred			$ 23,000
Acquisition
Payments for business acquisitions, net of cash acquired			$ 18,400
Future contingent consideration payment				$ 4,600
Effective tax rate (as a percent)				21.00%
Goodwill				$ 15,959
Sabisu Ltd. [Member]
Business Acquisition [Line Items]
Business Combination, Consideration Transferred		$ 7,600
Acquisition
Payments for business acquisitions, net of cash acquired		$ 6,100
Future contingent consideration payment				1,500
Goodwill				$ 4,783
Mnubo [Member]
Business Acquisition [Line Items]
Business Combination, Consideration Transferred	$ 78,000
Developed technology \| Apex Optimisation [Member]
Acquisition
Finite-lived intangible asset, useful life				7 years
Customer relationships \| Apex Optimisation [Member]
Acquisition
Finite-lived intangible asset, useful life				7 years
Identifiable intangible assets acquired				$ 3,800
Customer relationships \| Sabisu Ltd. [Member]
Acquisition
Identifiable intangible assets acquired				$ 1,525

Acquisitions - Schedule of Recognized Identified Assets Acquired and Liabilities Assumed (Details) - USD ($) $ in Thousands			12 Months Ended
	Jun. 12, 2019	Feb. 05, 2018	Jun. 30, 2019
Business Acquisition [Line Items]
Payments to Acquire Businesses, Gross			$ 1,700
Goodwill			78,383
Sabisu Ltd. [Member]
Business Acquisition [Line Items]
Payments to Acquire Businesses, Gross	$ 6,100
Business Combination, Contingent Consideration Arrangements, Range of Outcomes, Value, High			1,500
Tangible assets acquired, net			355
Goodwill			4,783
Deferred tax liabilities			(564)
Total assets acquired			7,624
Sabisu Ltd. [Member] \| Developed technology
Business Acquisition [Line Items]
Identifiable intangible assets acquired			1,525
Sabisu Ltd. [Member] \| Customer relationships
Business Acquisition [Line Items]
Identifiable intangible assets acquired			1,525
Apex Optimisation [Member]
Business Acquisition [Line Items]
Payments to Acquire Businesses, Gross		$ 18,400
Business Combination, Contingent Consideration Arrangements, Range of Outcomes, Value, High			4,600
Tangible assets acquired, net			360
Goodwill			15,959
Deferred tax liabilities			(1,619)
Total assets acquired			23,000
Apex Optimisation [Member] \| Developed technology
Business Acquisition [Line Items]
Identifiable intangible assets acquired			$ 4,500
Apex Optimisation [Member] \| Customer relationships
Business Acquisition [Line Items]
Finite-lived intangible asset, useful life			7 years
Identifiable intangible assets acquired			$ 3,800

Intangible Assets - Schedule of Intangible Assets (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2019	Jun. 30, 2018
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 44,224	$ 41,632
Accumulated Amortization	(10,399)	(5,866)
Effect of Currency Translation	(218)	(456)
Net Carrying Amount	33,607	35,310
Technology and patents
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	37,168	35,898
Accumulated Amortization	(8,868)	(5,182)
Effect of Currency Translation	(118)	(254)
Net Carrying Amount	28,182	30,462
Customer relationships
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	6,503	5,181
Accumulated Amortization	(1,039)	(377)
Effect of Currency Translation	(100)	(202)
Net Carrying Amount	5,364	4,602
Non-compete agreements [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	553	553
Accumulated Amortization	(492)	(307)
Effect of Currency Translation	0	0
Net Carrying Amount	$ 61	$ 246

Intangible Assets - Narrative (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2017
Goodwill and Intangible Assets Disclosure [Abstract]
Intangible asset amortization expense	$ 4,500	$ 2,200	$ 1,000
Amortization expense - 2020	5,120
Amortization expense - 2021	5,165
Amortization expense - 2022	5,104
Amortization expense - 2023	5,019
Amortization expense - 2024	4,326
Amortization expense - Thereafter	8,873
Finite Lived Intangible Assets Future Amortization Expense	$ 33,607

Goodwill - Schedule of Goodwill (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2017
Goodwill:
Goodwill, net carrying amount	$ 78,383
Subscription and software
Goodwill:
Goodwill, gross carrying amount	142,316	$ 116,833
Goodwill, accumulated impairment losses	(65,569)	(65,569)
Goodwill, net carrying amount	78,383	75,590	$ 51,248
Goodwill from acquisitions, net of adjustments	3,256	25,483
Goodwill, effect of currency translation	(1,620)	(1,157)	(16)
Goodwill, gross carrying amount	145,572	142,316	116,833
Goodwill, accumulated impairment losses	(65,569)	(65,569)	$ (65,569)
Goodwill Foreign Currency Translation Gain Loss [Member] \| Subscription and software
Goodwill:
Goodwill, effect of currency translation	$ (463)	$ (1,141)

Goodwill - Narrative (Details)	12 Months Ended
Goodwill - Narrative (Details)	Jun. 30, 2019 USD ($) triggering_event	Jun. 30, 2018 triggering_event	Jun. 30, 2017 triggering_event
Goodwill and Intangible Assets Disclosure [Abstract]
Impairment loss recognized \| $	$ 0
Number of triggering events indicating goodwill impairment occurred \| triggering_event	0	0	0

Accrued Expenses and Other Liabilities - Accrued Expenses and Other Current Liabilities (Details) - USD ($) $ in Thousands	Jun. 30, 2019	Jun. 30, 2018
Accrued expenses and other current liabilities
Compensation-related	$ 27,147	$ 21,796
Deferred acquisition payments	4,600	1,700
Uncertain tax positions	3,751	0
Royalties and outside commissions	3,665	3,333
Share repurchases	2,432	1,646
Professional fees	3,053	1,695
Deferred rent	1,331	1,188
Other	8,615	8,157
Total accrued expenses and other current liabilities	$ 54,594	$ 39,515

Accrued Expenses and Other Liabilities - Other Non-Current Liabilities (Details) - USD ($) $ in Thousands	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018
Other non-current liabilities
Deferred rent	$ 5,187
Uncertain tax positions	2,274
Deferred acquisition payments	1,524
Asset retirement obligations	914
Other	482
Total other non-current liabilities	$ 10,381				$ 18,492
Accounting Standards Update 2014-09 (Topic 606) [Member]
Other non-current liabilities
Deferred rent					6,442
Uncertain tax positions					4,510
Deferred acquisition payments					4,294
Asset retirement obligations					916
Other					906
Total other non-current liabilities		$ 12,403	$ 16,192	$ 16,833	$ 17,068

Credit Agreement - Narrative (Details) - USD ($)	Feb. 26, 2016	Jun. 30, 2019	Aug. 09, 2017
Line of Credit Facility [Line Items]
Borrowings under credit agreement		$ 220,000,000
Credit Agreement \| Line of Credit
Line of Credit Facility [Line Items]
Principal amount	$ 250,000,000.0		$ 350,000,000.0
Margin rate (as a percent)	0.50%
Maximum leverage ratio		3.0
Minimum interest coverage ratio		3.0
Federal Funds Effective Rate \| Credit Agreement \| Line of Credit
Line of Credit Facility [Line Items]
Variable rate spread (as a percent)	0.50%
Adjusted LIBOR \| Credit Agreement \| Line of Credit
Line of Credit Facility [Line Items]
Variable rate spread (as a percent)	1.00%
Margin rate (as a percent)	1.50%
Minimum \| Credit Agreement \| Line of Credit
Line of Credit Facility [Line Items]
Commitment fee percentage (as a percent)	0.20%
Maximum \| Credit Agreement \| Line of Credit
Line of Credit Facility [Line Items]
Commitment fee percentage (as a percent)	0.30%
Outstanding Borrowing 1 [Member] \| Credit Agreement \| Line of Credit
Line of Credit Facility [Line Items]
Borrowings under credit agreement		$ 159,000,000.0
Effective interest rate (as a percent)		3.91%
Outstanding Borrowing 2 [Member] \| Credit Agreement \| Line of Credit
Line of Credit Facility [Line Items]
Borrowings under credit agreement		$ 61,000,000.0
Effective interest rate (as a percent)		3.94%

Stock-Based Compensation - Stock Compensation Plans and General Award Terms (Details) - shares	12 Months Ended
	Jun. 30, 2019	Dec. 31, 2016	Apr. 30, 2010
Stock-based compensation, additional disclosures
Common stock reserved for future issuance or settlement (in shares)	9,700,000
2016 Plan
Stock-based compensation, additional disclosures
Maximum number of shares authorized (in shares)		6,000,000
Common stock reserved for future issuance or settlement (in shares)	5,617,627
2010 Plan
Stock-based compensation, additional disclosures
Maximum number of shares authorized (in shares)			7,000,000
Common stock reserved for future issuance or settlement (in shares)	1,945,234
Stock Options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition	2 years 5 months 19 days
General award terms
Award vesting period	4 years
Stock Options \| Minimum
General award terms
Contractual terms	7 years
Stock Options \| Maximum
General award terms
Contractual terms	10 years
Restricted Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition	2 years 5 months 8 days
General award terms
Award vesting period	4 years

Stock-Based Compensation - Stock-Based Compensation Accounting (Details) - Stock Options - $ / shares	12 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2017
Weighted average assumptions
Weighted average fair value (in dollars per share)	$ 31.25	$ 17.07	$ 13.16
Risk-free interest rate (as a percent)	2.80%	1.70%	1.20%
Expected dividend yield (as a percent)	0.00%	0.00%	0.00%
Expected life (in years)	4 years 7 months 6 days	4 years 7 months 6 days	4 years 7 months 6 days
Expected volatility factor (as a percent)	26.60%	28.00%	31.30%

Stock-Based Compensation - Stock Based Compensation Expense and its Classification in the Consolidated Statement of Operations (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2017
Recorded as expenses:
Total stock-based compensation	$ 27,573
Cost of maintenance [Member]
Recorded as expenses:
Total stock-based compensation	1,282
Cost of services and other
Recorded as expenses:
Total stock-based compensation	1,420
Selling and marketing
Recorded as expenses:
Total stock-based compensation	4,849
Research and development
Recorded as expenses:
Total stock-based compensation	6,923
General and administrative
Recorded as expenses:
Total stock-based compensation	$ 13,099
Accounting Standards Update 2014-09 (Topic 606) [Member]
Recorded as expenses:
Total stock-based compensation		$ 22,688	$ 18,800
Accounting Standards Update 2014-09 (Topic 606) [Member] \| Cost of maintenance [Member]
Recorded as expenses:
Total stock-based compensation		559	564
Accounting Standards Update 2014-09 (Topic 606) [Member] \| Cost of services and other
Recorded as expenses:
Total stock-based compensation		920	913
Accounting Standards Update 2014-09 (Topic 606) [Member] \| Selling and marketing
Recorded as expenses:
Total stock-based compensation		3,862	3,652
Accounting Standards Update 2014-09 (Topic 606) [Member] \| Research and development
Recorded as expenses:
Total stock-based compensation		7,617	5,806
Accounting Standards Update 2014-09 (Topic 606) [Member] \| General and administrative
Recorded as expenses:
Total stock-based compensation		$ 9,730	$ 7,865

Stock-Based Compensation - Stock Option Activity (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2017
Stock Options
Stock options activity
Outstanding, beginning of period (in shares)	1,369,442
Granted (in shares)	282,798
Exercised (in shares)	(252,975)
Cancelled / Forfeited (in shares)	(95,248)
Outstanding, end of period (in shares)	1,304,017	1,369,442
Vested and exercisable, end of period (in shares)	842,746
Vested and expected to vest, end of period (in shares)	1,249,802
Weighted Average Exercise Price
Outstanding, beginning of period (in dollars per share)	$ 45.93
Granted (in dollars per share)	113.88	$ 64.30	$ 46.31
Exercised (in dollars per share)	39.24
Cancelled / Forfeited (in dollars per share)	68.25
Outstanding, end of period (in dollars per share)	60.33	$ 45.93
Vested and exercisable, end of period (in dollars per share)	48.81
Vested and expected to vest, end of period (in dollars per share)	$ 59.52
Weighted Average Remaining Contractual Term
Outstanding, end of period	6 years 11 months 8 days	7 years 2 months 23 days
Vested and exercisable, end of period	6 years 1 month 9 days
Vested and expected to vest, end of period	6 years 10 months 13 days
Aggregate Intrinsic Value
Outstanding, beginning of period	$ 64,103
Outstanding, end of period	83,388	$ 64,103
Vested and exercisable, end of period	63,598
Vested and expected to vest, end of period	$ 80,935
Restricted Stock Units
Restricted stock units activity
Outstanding, beginning of period (in shares)	621,700
Granted (in shares)	645,146
Settled (in shares)	(392,364)
Cancelled / Forfeited (in shares)	(80,764)
Outstanding, end of period (in shares)	793,718	621,700
Vested and expected to vest (in shares)	748,240
Weighted Average Grant Date Fair Value
Outstanding, beginning of period (in dollars per share)	$ 53.64
Granted (in dollars per share)	114.72	$ 64.32	$ 46.59
Settled (RSUs) (in dollars per share)	60.51
Cancelled / Forfeited (in dollars per share)	68.58
Outstanding, end of period (in dollars per share)	$ 98.38	$ 53.64
Vested and expected to vest, end of period (in dollars per share)	99.36

Stock-Based Compensation - Additional Disclosures (Details) - USD ($)	3 Months Ended	6 Months Ended	12 Months Ended
	Sep. 30, 2019	Jun. 30, 2019	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2017	Jul. 26, 2018	Apr. 30, 2010
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Proceeds from issuances of shares of common stock			$ 10,864,000
Payments related to tax withholding			$ 14,477,000
Common stock reserved for future issuance or settlement (in shares)		9,700,000	9,700,000
Allocated Share-based Compensation Expense			$ 27,573,000
Restricted Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted (in dollars per share)			$ 114.72	$ 64.32	$ 46.59
Total fair value of shares vested from RSU grants			$ 39,900,000	$ 23,000,000.0	$ 16,600,000
Total unrecognized compensation cost		$ 26,200,000	$ 26,200,000
Total unrecognized compensation cost, period of recognition			2 years 5 months 8 days
Granted (in shares)			645,146
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeited in Period			80,764
Stock Options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total unrecognized compensation cost		$ 8,400,000	$ 8,400,000
Total unrecognized compensation cost, period of recognition			2 years 5 months 19 days
Granted (in dollars per share)			$ 113.88	$ 64.30	$ 46.31
Total intrinsic value of options exercised			$ 18,200,000	$ 15,100,000	$ 7,900,000
Proceeds from issuances of shares of common stock			10,900,000	13,500,000	9,300,000
Payments related to tax withholding			$ 14,700,000	$ 8,100,000	$ 5,800,000
Performance Shares [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted (in shares)			382,373
Allocated Share-based Compensation Expense			$ 0
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeited in Period	60,680
2010 Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common stock reserved for future issuance or settlement (in shares)		1,945,234	1,945,234
Maximum number of shares authorized (in shares)							7,000,000
2018 Employee Stock Purchase Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common stock reserved for future issuance or settlement (in shares)		236,961	236,961
Maximum number of shares authorized (in shares)						250,000
Share-based Compensation Arrangement by Share-based Payment Award, Purchase Price of Common Stock, Percent		85.00%
Stock Issued During Period, Shares, Employee Stock Ownership Plan		13,039
Stock Issued During Period, Value, Employee Stock Purchase Plan		$ 900,000

Common Stock - Narrative (Details) - USD ($) $ in Thousands	12 Months Ended
Common Stock - Narrative (Details) - USD ($) $ in Thousands	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2017	Apr. 17, 2019	Dec. 06, 2018	Apr. 18, 2018	Jun. 08, 2017	Apr. 26, 2016	Jan. 22, 2015
Common Stock
Approved stock repurchase program, authorized amount				$ 200,000	$ 100,000	$ 200,000	$ 200,000	$ 400,000	$ 450,000
Repurchase of common stock (in shares)	3,074,127	2,797,623	5,185,257
Repurchase of common stock, amount	$ 300,000		$ 275,000
Remaining capacity under the stock repurchase program	346,300
Accelerated Share Repurchase Program [Member]
Common Stock
Repurchase of common stock (in shares)			2,106,709
Repurchase of common stock, amount			$ 100,000
Open Market Transaction [Member]
Common Stock
Repurchase of common stock, amount	$ 300,000	$ 200,000

Net Income Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended								12 Months Ended
	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2017
Treasury Stock, Value, Acquired, Cost Method									$ 300,000		$ 275,000
Net income	$ 103,865	$ 61,587	$ 59,217	$ 38,066					$ 262,734	$ 148,688	$ 162,196
Basic (in shares)	68,839,000	69,423,000	70,428,000	70,988,000					69,925,000	72,140,000	76,491,000
Dilutive impact from employee equity awards									862,000
Diluted (in shares)	69,638,000	70,160,000	71,148,000	72,015,000					70,787,000	72,956,000	76,978,000
Basic (in dollars per share)	$ 1.51	$ 0.89	$ 0.84	$ 0.54					$ 3.76	$ 2.06	$ 2.12
Diluted (in dollars per share)	$ 1.49	$ 0.88	$ 0.83	$ 0.53					$ 3.71	$ 2.04	$ 2.11
Employee Stock Option [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount									245,252
Stock Compensation Plan [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount									784,000	419,000	525,000
Employee Stock Option [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Lower Range Limit									$ 103.19
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Upper Range Limit									$ 123.56
Accelerated Share Repurchase Program [Member]
Treasury Stock, Value, Acquired, Cost Method											$ 100,000
Accounting Standards Update 2014-09 (Topic 606) [Member]
Treasury Stock, Value, Acquired, Cost Method										$ 200,000	375,000
Net income					$ 76,646	$ 44,506	$ 132,030	$ 40,521		$ 293,703	$ 179,386
Basic (in shares)					71,349,000	71,828,000	72,342,000	73,024,000		72,140,000	76,491,000
Dilutive impact from employee equity awards										816,000	487,000
Diluted (in shares)					72,315,000	72,663,000	73,036,000	73,609,000		72,956,000	76,978,000
Basic (in dollars per share)					$ 1.07	$ 0.62	$ 1.83	$ 0.55		$ 4.07	$ 2.35
Diluted (in dollars per share)					$ 1.06	$ 0.61	$ 1.81	$ 0.55		$ 4.03	$ 2.33

Income Taxes - Income (Loss) before Provision For (Benefit From) Income Taxes (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2017
Income (loss) before provision for income taxes
Domestic	$ 298,665
Foreign	4,525
Income before provision for income taxes	303,190
Federal
Current	64,194
Deferred	(26,983)
State
Current	3,246
Deferred	(1,026)
Foreign
Current	1,549
Deferred	(524)
Provision for income taxes	$ 40,456	$ 54,655	$ 48,150
Accounting Standards Update 2014-09 (Topic 606) [Member]
Income (loss) before provision for income taxes
Domestic		229,745	228,890
Foreign		7,901	8,293
Income before provision for income taxes		237,646	237,183
Federal
Current		47,734	69,385
Deferred		(108,867)	(13,110)
State
Current		1,471	1,737
Deferred		1,042	(771)
Foreign
Current		2,296	2,067
Deferred		267	(1,511)
Provision for income taxes		$ (56,057)	$ 57,797

Income Taxes - Provision For (Benefit From) Income Taxes (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2017
Income Tax Reconciliation
Federal tax provision at statutory rate	$ 63,670
State income taxes	1,540
Remeasurement of deferred taxes	0
Foreign-derived intangible income (FDII)	(20,326)
Global intangible low-taxed income (GILTI)	797
Effect of foreign operations	7,395
Foreign taxes and rate differences	514
Stock-based compensation	(3,774)
Tax credits	(9,677)
Uncertain tax positions	1,055
Return to provision adjustments	(482)
Domestic production activity deduction	0
Valuation allowance	(550)
Other	294
Provision for income taxes	$ 40,456	$ 54,655	$ 48,150
Accounting Standards Update 2014-09 (Topic 606) [Member]
Income Tax Reconciliation
Federal tax provision at statutory rate		66,683	83,014
State income taxes		1,503	1,167
Remeasurement of deferred taxes		(115,536)	0
Foreign-derived intangible income (FDII)		0	0
Global intangible low-taxed income (GILTI)		0	0
Effect of foreign operations		4,700	2,912
Foreign taxes and rate differences		(164)	(206)
Stock-based compensation		(2,951)	991
Tax credits		(7,913)	(6,614)
Uncertain tax positions		(185)	(19,645)
Return to provision adjustments		(488)	464
Domestic production activity deduction		(4,869)	(6,261)
Valuation allowance		2,326	1,522
Other		837	453
Provision for income taxes		$ (56,057)	$ 57,797

Income Taxes - Deferred Tax Assets (Liabilities) (Details) - USD ($) $ in Thousands	Jun. 30, 2019	Jun. 30, 2018
Deferred tax assets:
Federal and state credits	$ 4,055
Capital loss carryforwards	0
Net operating loss carryforwards	906
Contract assets and costs	(156,346)
Deferred revenue	5,252
Other reserves and accruals	6,082
Intangible assets	1,020
Property, leasehold improvements, and other basis differences	1,433
Other temporary differences	453
Deferred tax assets, total	19,201
Deferred tax liabilities:
Contract assets and costs	(8,610)
Intangible assets	(5,635)
Property, leasehold improvements, and other basis differences	(1,146)
Deferred Tax Liabilities, Gross	171,737
Deferred tax liabilities, total	(157,402)
Valuation allowance	$ (4,866)	$ (10,400)
Accounting Standards Update 2014-09 (Topic 606) [Member]
Deferred tax assets:
Federal and state credits		4,363
Capital loss carryforwards		4,856
Net operating loss carryforwards		1,452
Contract assets and costs		(121,631)
Deferred revenue		3,163
Other reserves and accruals		6,550
Intangible assets		1,015
Property, leasehold improvements, and other basis differences		1,646
Other temporary differences		450
Deferred tax assets, total		23,495
Deferred tax liabilities:
Contract assets and costs		(68,546)
Intangible assets		(5,231)
Property, leasehold improvements, and other basis differences		(1,340)
Deferred Tax Liabilities, Gross		196,748
Deferred tax liabilities, total		(183,669)
Valuation allowance		$ (10,416)

Income Taxes - Narrative (Details) - USD ($) $ in Thousands	6 Months Ended		12 Months Ended
Income Taxes - Narrative (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017	Jun. 30, 2019	Jun. 30, 2018
Tax Credit Carryforward
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent	21.00%	35.00%
Effective Income Tax Rate Reconciliation, Change in Enacted Tax Rate, Percent			6.70%
Deferred tax asset valuation allowance
Deferred tax asset valuation allowance	$ (10,400)		$ (4,866)	$ (10,400)
Unrecognized tax benefits that if recognized would reduce the effective tax rate			5,400
Accrued interest			500
Accrued penalties related to uncertain tax positions			100
Benefit for interest and penalties			100
Valuation Allowance, Deferred Tax Asset, Increase (Decrease), Amount			4,800
Foreign
Tax Credit Carryforward
Net operating loss carryforwards			900
Research and development tax credit carryforward \| State and Local Jurisdiction [Member]
Tax Credit Carryforward
Tax credit carryforward			3,900
Research and development tax credit carryforward \| State and Local Jurisdiction [Member]
Tax Credit Carryforward
Tax credit carryforward			4,000
Accounting Standards Update 2016-09 [Member]
Tax Credit Carryforward
Increase (Decrease) in Income Taxes			$ 3,800	$ 3,000
EffectiveIncomeTaxRateReconciliationChangeInTaxRateDueToExcessTaxBenefitsRecognizedFromShareBasedCompensation			(1.00%)	1.00%

Income Taxes - Reconciliation of the Reserve For Uncertain Tax Positions (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2017
Reconciliation of the reserve for uncertain tax positions
Uncertain tax positions, beginning of year	$ 3,931
Gross (decreases) increases - tax positions in prior period	407
Gross increases—tax positions in current period	1,789
Gross decreases—lapse of statutes	(740)
Currency translation adjustment	(7)
Uncertain tax positions, end of year	5,380	$ 3,931
Accounting Standards Update 2014-09 (Topic 606) [Member]
Reconciliation of the reserve for uncertain tax positions
Uncertain tax positions, beginning of year	$ 3,931	3,921	$ 23,535
Gross (decreases) increases - tax positions in prior period		544	(19,116)
Gross increases—tax positions in current period		0	0
Gross decreases—lapse of statutes		(637)	(830)
Currency translation adjustment		103	332
Uncertain tax positions, end of year		$ 3,931	$ 3,921

Commitments and Contingencies - Future Minimum Lease Payments (Details) $ in Thousands	Jun. 30, 2019 USD ($)
Gross Payments
2020	$ 8,399
2021	7,820
2022	6,514
2023	5,862
2024	4,932
Thereafter	3,307
Total	$ 36,834

Commitments and Contingencies - Narrative (Details) - USD ($) $ in Millions	12 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2017
Leases, Operating [Abstract]
Rent expense	$ 8.3	$ 8.2	$ 8.4
Standby letters of credit	$ 3.9

Retirement Plans - Narrative (Details) - USD ($) $ in Millions	12 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2017
Defined Contribution Plan [Abstract]
Employer matching contributions (as a percent)	50.00%
Maximum employee's pretax contribution that can be matched (as a percent)	6.00%
Employer matching contributions	$ 2.6	$ 2.7	$ 2.5

Segment and Geographic Information - Narrative (Details) $ in Millions	12 Months Ended
	Jun. 30, 2019 USD ($) segments	Jun. 30, 2018 USD ($)
Geographic Information
Number of operating segments \| segments	2
United States
Geographic Information
Long-lived assets	$ 79.0	$ 93.9
Other geographic locations
Geographic Information
Long-lived assets	$ 44.5	$ 39.8

Segment and Geographic Information - Summary of Segments' Profits (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2017
Summary of operating segments
Segment revenue	$ 195,769	$ 147,984	$ 140,423	$ 114,169
Total segment profit from reportable segments	$ 111,223	$ 70,831	$ 63,758	$ 36,990					$ 282,802	$ 209,641	$ 212,016
Operating segments
Summary of operating segments
Segment revenue									598,345
Segment expenses									(252,312)
Total segment profit from reportable segments									346,033
Operating segments \| Subscription and software
Summary of operating segments
Segment revenue									569,558
Segment expenses									(220,764)
Total segment profit from reportable segments									348,794
Operating segments \| Services and other
Summary of operating segments
Segment revenue									28,787
Segment expenses									(31,548)
Total segment profit from reportable segments									$ (2,761)
Accounting Standards Update 2014-09 (Topic 606) [Member]
Summary of operating segments
Segment revenue					$ 159,084	$ 127,759	$ 105,529	$ 126,487
Total segment profit from reportable segments					$ 79,784	$ 53,620	$ 30,104	$ 55,714		219,221	216,719
Accounting Standards Update 2014-09 (Topic 606) [Member] \| Operating segments
Summary of operating segments
Segment revenue										518,859	494,427
Segment expenses										(232,457)	(218,973)
Total segment profit from reportable segments										286,402	275,454
Accounting Standards Update 2014-09 (Topic 606) [Member] \| Operating segments \| Subscription and software
Summary of operating segments
Segment revenue										487,614	464,271
Segment expenses										(204,457)	(192,559)
Total segment profit from reportable segments										283,157	271,712
Accounting Standards Update 2014-09 (Topic 606) [Member] \| Operating segments \| Services and other
Summary of operating segments
Segment revenue										31,245	30,156
Segment expenses										(28,000)	(26,414)
Total segment profit from reportable segments										$ 3,245	$ 3,742

Segment and Geographic Information - Reconciliation of Total Segment Operating Profit (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2017
Reconciliation to Income Before Income Taxes
Total segment profit from reportable segments	$ 111,223	$ 70,831	$ 63,758	$ 36,990					$ 282,802	$ 209,641	$ 212,016
General and administrative									(63,231)	(56,076)	(51,297)
Interest income									28,457	231	808
Interest (expense)									(8,733)
Other (expense) income, net									664
Income before income taxes									303,190
Operating segments
Reconciliation to Income Before Income Taxes
Total segment profit from reportable segments									346,033
Segment reconciling items
Reconciliation to Income Before Income Taxes
General and administrative									(63,231)
Interest income									28,457
Interest (expense)									(8,733)
Other (expense) income, net									$ 664
Accounting Standards Update 2014-09 (Topic 606) [Member]
Reconciliation to Income Before Income Taxes
Total segment profit from reportable segments					$ 79,784	$ 53,620	$ 30,104	$ 55,714		219,221	216,719
General and administrative										(67,181)	(58,735)
Interest income										24,954	22,942
Interest (expense)										(5,691)	(3,787)
Other (expense) income, net										(838)	1,309
Income before income taxes										237,646	237,183
Accounting Standards Update 2014-09 (Topic 606) [Member] \| Operating segments
Reconciliation to Income Before Income Taxes
Total segment profit from reportable segments										286,402	275,454
Accounting Standards Update 2014-09 (Topic 606) [Member] \| Segment reconciling items
Reconciliation to Income Before Income Taxes
General and administrative										(67,181)	(58,735)
Interest income										24,954	22,942
Interest (expense)										(5,691)	(3,787)
Other (expense) income, net										$ (838)	$ 1,309

Quarterly Financial Data (Unaudited) - (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended								12 Months Ended
	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2016
Cash and cash equivalents	$ 71,926				$ 96,165				$ 71,926	$ 96,165
Accounts Receivable, Net, Current	47,784				21,910				47,784	21,910
Current contract assets	294,193				0				294,193	0
Prepaid expenses and other current assets	12,628								12,628
Prepaid income taxes	2,509								2,509
Assets, Current	429,040								429,040
Property, equipment and leasehold improvements, net	7,234				9,806				7,234	9,806
Computer software development costs, net	1,306								1,306
Goodwill	78,383								78,383
Intangible assets, net	33,607				35,310				33,607	35,310
Non-current contract assets	325,510				0				325,510	0
Contract costs	24,982				0				24,982	0
Non-current deferred tax assets	1,669				11,090				1,669	11,090
Other non-current assets	1,334								1,334
Assets	903,065				264,924				903,065	264,924
Accounts payable	5,891								5,891
Accrued expenses and other current liabilities	54,594				39,515				54,594	39,515
Income taxes payable	14,952								14,952
Borrowings under credit agreement	220,000								220,000
Current deferred revenue	25,318				286,845				25,318	286,845
Liabilities, Current	320,755								320,755
Non-current deferred revenue	19,573				28,259				19,573	28,259
Deferred income taxes	159,071				0				159,071	0
Other non-current liabilities	10,381				18,492				10,381	18,492
Commitments and contingencies (Note 16)
Series D redeemable convertible preferred stock, $0.10 par value—Authorized—3,636 shares as of June 30, 2019 and 2018 Issued and outstanding—none as of June 30, 2019 and 2018	0								0
Common stock, $0.10 par value—Authorized—210,000,000 shares Issued—103,642,292 shares at June 30, 2019 and 103,130,300 shares at June 30, 2018 Outstanding—68,624,566 shares at June 30, 2019 and 71,186,701 shares at June 30, 2018	10,365								10,365
Additional paid-in capital	739,099								739,099
Retained earnings	1,259,984				305,208				1,259,984	305,208
Accumulated other comprehensive income	336								336
Treasury Stock, Value	(1,616,499)								(1,616,499)
Stockholders' Equity Attributable to Parent	393,285								393,285			$ (75,034)
Total liabilities and stockholders' equity	903,065				264,924				903,065	264,924
Total revenue	195,769	$ 147,984	$ 140,423	$ 114,169
Gross profit	180,279	133,624	125,684	100,942					540,529	448,870	$ 435,476
Income from operations	111,223	70,831	63,758	36,990					282,802	209,641	212,016
Net income	$ 103,865	$ 61,587	$ 59,217	$ 38,066					$ 262,734	$ 148,688	$ 162,196
Net income per common share:
Basic (in dollars per share)	$ 1.51	$ 0.89	$ 0.84	$ 0.54					$ 3.76	$ 2.06	$ 2.12
Diluted (in dollars per share)	$ 1.49	$ 0.88	$ 0.83	$ 0.53					$ 3.71	$ 2.04	$ 2.11
Weighted average shares outstanding:
Basic (in shares)	68,839	69,423	70,428	70,988					69,925	72,140	76,491
Diluted (in shares)	69,638	70,160	71,148	72,015					70,787	72,956	76,978
Accounting Standards Update 2014-09 (Topic 606) [Member]
Cash and cash equivalents		$ 65,592	$ 54,428	$ 52,048	96,165					$ 96,165	$ 101,954	318,336
Accounts Receivable, Net, Current		41,640	52,933	50,346	41,810					41,810
Current contract assets		270,732	265,686	238,495	237,537					237,537
Current contract costs		0	0	0	0					0
Prepaid expenses and other current assets		11,124	10,330	12,992	10,509					10,509
Prepaid income taxes		1,573	921	1,422	2,601					2,601
Assets, Current		390,661	384,298	355,303	388,622					388,622
Property, equipment and leasehold improvements, net		7,589	8,311	9,006	9,806					9,806
Computer software development costs, net		1,452	691	695	646					646
Goodwill		73,534	74,802	75,649	75,590					75,590
Intangible assets, net		31,756	32,889	34,192	35,310					35,310
Non-current contract assets		318,752	338,060	353,449	319,840					319,840
Contract costs		24,325	23,046	21,296	20,500					20,500
Non-current deferred tax assets		1,696	1,651	1,176	1,232					1,232
Other non-current assets		1,279	1,075	1,279	1,297					1,297
Assets		851,044	864,823	852,045	852,843					852,843
Accounts payable		4,023	5,249	2,501	4,230					4,230
Accrued expenses and other current liabilities		42,746	36,688	32,000	39,515					39,515
Income taxes payable		35,582	43,573	46,869	1,698					1,698
Borrowings under credit agreement		220,000	220,000	170,000	170,000					170,000
Current deferred revenue		24,415	23,145	23,737	15,150					15,150
Liabilities, Current		326,766	328,655	275,107	230,593					230,593
Non-current deferred revenue		19,312	18,167	15,046	12,354					12,354
Deferred income taxes		135,535	137,872	140,197	184,901					184,901
Other non-current liabilities		12,403	16,192	16,833	17,068					17,068
Commitments and contingencies (Note 16)
Series D redeemable convertible preferred stock, $0.10 par value—Authorized—3,636 shares as of June 30, 2019 and 2018 Issued and outstanding—none as of June 30, 2019 and 2018		0	0	0	0					0
Common stock, $0.10 par value—Authorized—210,000,000 shares Issued—103,642,292 shares at June 30, 2019 and 103,130,300 shares at June 30, 2018 Outstanding—68,624,566 shares at June 30, 2019 and 71,186,701 shares at June 30, 2018		10,348	10,340	10,328	10,313					10,313
Additional paid-in capital		730,830	725,493	724,752	715,475					715,475
Retained earnings		1,156,120	1,094,533	1,035,316	997,250					997,250
Accumulated other comprehensive income		1,229	70	965	1,388					1,388
Treasury Stock, Value		(1,541,499)	(1,466,499)	(1,366,499)	(1,316,499)					(1,316,499)
Stockholders' Equity Attributable to Parent		357,028	363,937	404,862	407,927					407,927	286,243	$ 454,803
Total liabilities and stockholders' equity		851,044	864,823	852,045	852,843					852,843
Total revenue					159,084	$ 127,759	$ 105,529	$ 126,487
Gross profit					146,037	114,983	93,440	113,755		468,215	446,961
Income from operations					79,784	53,620	30,104	55,714		219,221	216,719
Net income					$ 76,646	$ 44,506	$ 132,030	$ 40,521		$ 293,703	$ 179,386
Net income per common share:
Basic (in dollars per share)					$ 1.07	$ 0.62	$ 1.83	$ 0.55		$ 4.07	$ 2.35
Diluted (in dollars per share)					$ 1.06	$ 0.61	$ 1.81	$ 0.55		$ 4.03	$ 2.33
Weighted average shares outstanding:
Basic (in shares)					71,349	71,828	72,342	73,024		72,140	76,491
Diluted (in shares)					72,315	72,663	73,036	73,609		72,956	76,978
Previously Reported [Member] \| Accounting Standards Update 2014-09 (Topic 606) [Member]
Cash and cash equivalents		65,592	54,428	52,048	$ 96,165					$ 96,165
Accounts Receivable, Net, Current		45,293	56,586	53,999	41,810					41,810
Current contract assets		314,745	321,135	317,967	304,378					304,378
Current contract costs		24,325	23,046	21,296	20,500					20,500
Prepaid expenses and other current assets		11,124	10,330	12,992	10,509					10,509
Prepaid income taxes		1,573	921	1,422	2,601					2,601
Assets, Current		462,652	466,446	459,724	475,963					475,963
Property, equipment and leasehold improvements, net		7,589	8,311	9,006	9,806					9,806
Computer software development costs, net		1,452	691	695	646					646
Goodwill		73,534	74,802	75,649	75,590					75,590
Intangible assets, net		31,756	32,889	34,192	35,310					35,310
Non-current contract assets		358,709	366,581	357,947	340,622					340,622
Contract costs		0	0	0	0					0
Non-current deferred tax assets		1,696	1,651	1,176	11,090					11,090
Other non-current assets		1,279	1,075	1,279	1,297					1,297
Assets		938,667	952,446	939,668	950,324					950,324
Accounts payable		4,023	5,249	2,501	4,230					4,230
Accrued expenses and other current liabilities		42,746	36,688	32,000	39,515					39,515
Income taxes payable		35,582	43,573	46,869	1,698					1,698
Borrowings under credit agreement		220,000	220,000	170,000	170,000					170,000
Current deferred revenue		24,415	23,145	23,737	15,150					15,150
Liabilities, Current		326,766	328,655	275,107	230,593					230,593
Non-current deferred revenue		19,312	18,167	15,046	12,354					12,354
Deferred income taxes		154,901	157,238	159,563	214,125					214,125
Other non-current liabilities		12,403	16,192	16,833	17,068					17,068
Series D redeemable convertible preferred stock, $0.10 par value—Authorized—3,636 shares as of June 30, 2019 and 2018 Issued and outstanding—none as of June 30, 2019 and 2018		0	0	0	0					0
Common stock, $0.10 par value—Authorized—210,000,000 shares Issued—103,642,292 shares at June 30, 2019 and 103,130,300 shares at June 30, 2018 Outstanding—68,624,566 shares at June 30, 2019 and 71,186,701 shares at June 30, 2018		10,348	10,340	10,328	10,313					10,313
Additional paid-in capital		730,830	725,493	724,752	715,475					715,475
Retained earnings		1,224,377	1,162,790	1,103,573	1,065,507					1,065,507
Accumulated other comprehensive income		1,229	70	965	1,388					1,388
Treasury Stock, Value		(1,541,499)	(1,466,499)	(1,366,499)	(1,316,499)					(1,316,499)
Stockholders' Equity Attributable to Parent		425,285	432,194	473,119	476,184					476,184
Total liabilities and stockholders' equity		938,667	952,446	939,668	950,324					950,324
Restatement Adjustment [Member]
Accounts Receivable, Net, Current				3,700
Deferred income taxes				19,400	19,400					19,400
Retained earnings				68,300	68,300					68,300
Restatement Adjustment [Member] \| Accounting Standards Update 2014-09 (Topic 606) [Member]
Cash and cash equivalents		0	0	0	0					0
Accounts Receivable, Net, Current		(3,653)	(3,653)	(3,653)	0					0
Current contract assets		(44,013)	(55,449)	(79,472)	(66,841)					(66,841)
Current contract costs		(24,325)	(23,046)	(21,296)	(20,500)					(20,500)
Prepaid expenses and other current assets		0	0	0	0					0
Prepaid income taxes		0	0	0	0					0
Assets, Current		(71,991)	(82,148)	(104,421)	(87,341)					(87,341)
Property, equipment and leasehold improvements, net		0	0	0	0					0
Computer software development costs, net		0	0	0	0					0
Goodwill		0	0	0	0					0
Intangible assets, net		0	0	0	0					0
Non-current contract assets		(39,957)	(28,521)	(4,498)	(20,782)					(20,782)
Contract costs		24,325	23,046	21,296	20,500					20,500
Non-current deferred tax assets		0	0	0	(9,858)					(9,858)
Other non-current assets		0	0	0	0					0
Assets		(87,623)	(87,623)	(87,623)	(97,481)					(97,481)
Accounts payable		0	0	0	0					0
Accrued expenses and other current liabilities		0	0	0	0					0
Income taxes payable		0	0	0	0					0
Borrowings under credit agreement		0	0	0	0					0
Current deferred revenue		0	0	0	0					0
Liabilities, Current		0	0	0	0					0
Non-current deferred revenue		0	0	0	0					0
Deferred income taxes		(19,366)	(19,366)	(19,366)	(29,224)					(29,224)
Other non-current liabilities		0	0	0	0					0
Series D redeemable convertible preferred stock, $0.10 par value—Authorized—3,636 shares as of June 30, 2019 and 2018 Issued and outstanding—none as of June 30, 2019 and 2018		0	0	0	0					0
Common stock, $0.10 par value—Authorized—210,000,000 shares Issued—103,642,292 shares at June 30, 2019 and 103,130,300 shares at June 30, 2018 Outstanding—68,624,566 shares at June 30, 2019 and 71,186,701 shares at June 30, 2018		0	0	0	0					0
Additional paid-in capital		0	0	0	0					0
Retained earnings		(68,257)	(68,257)	(68,257)	(68,257)					(68,257)
Accumulated other comprehensive income		0	0	0	0					0
Treasury Stock, Value		0	0	0	0					0
Stockholders' Equity Attributable to Parent		(68,257)	(68,257)	(68,257)	(68,257)					(68,257)
Total liabilities and stockholders' equity		$ (87,623)	$ (87,623)	$ (87,623)	$ (97,481)					$ (97,481)

Quarterly Financial Data (Unaudited) Restatement of Previously Issued Unaudited Consolidated Financial Statements (Details) - USD ($) $ / shares in Units, $ in Thousands	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2016
Series D redeemable convertible preferred stock, par value (in dollars per share)	$ 0.10	$ 0.10	$ 0.10	$ 0.10	$ 0.10
Cash and cash equivalents	$ 71,926				$ 96,165
Accounts Receivable, Net, Current	47,784				21,910
Current contract assets	294,193				0
Prepaid expenses and other current assets	12,628
Prepaid income taxes	2,509
Assets, Current	429,040
Property, equipment and leasehold improvements, net	7,234				9,806
Computer software development costs, net	1,306
Goodwill	78,383
Intangible assets, net	33,607				35,310
Non-current contract assets	325,510				0
Contract costs	24,982				0
Non-current deferred tax assets	1,669				11,090
Other non-current assets	1,334
Assets	903,065				264,924
Accounts payable	5,891
Accrued expenses and other current liabilities	54,594				39,515
Income taxes payable	14,952
Borrowings under credit agreement	220,000
Current deferred revenue	25,318				286,845
Liabilities, Current	320,755
Non-current deferred revenue	19,573				28,259
Deferred income taxes	159,071				0
Other non-current liabilities	10,381				18,492
Series D redeemable convertible preferred stock, $0.10 par value—Authorized—3,636 shares as of June 30, 2019 and 2018 Issued and outstanding—none as of June 30, 2019 and 2018	0
Common stock, $0.10 par value—Authorized—210,000,000 shares Issued—103,642,292 shares at June 30, 2019 and 103,130,300 shares at June 30, 2018 Outstanding—68,624,566 shares at June 30, 2019 and 71,186,701 shares at June 30, 2018	10,365
Additional paid-in capital	739,099
Retained earnings	1,259,984				305,208
Accumulated other comprehensive income	336
Treasury Stock, Value	(1,616,499)
Stockholders' Equity Attributable to Parent	393,285						$ (75,034)
Total liabilities and stockholders' equity	$ 903,065				$ 264,924
Series D redeemable convertible preferred stock, authorized	3,636	3,636	3,636	3,636	3,636
Series D redeemable convertible preferred stock, issued	0	0	0	0	0
Series D redeemable convertible preferred stock, outstanding	0	0	0	0	0
Common stock, par value (in dollars per share)	$ 0.10	$ 0.10	$ 0.10	$ 0.10	$ 0.10
Common stock, authorized	210,000,000	210,000,000	210,000,000	210,000,000	210,000,000
Common stock, issued	103,642,292	103,478,590	103,395,683	103,279,138	103,130,300
Common stock, outstanding	68,624,566	69,108,515	69,803,177	70,862,163	71,186,701
Treasury stock, shares	35,017,726	34,370,075	33,592,506	32,416,975	31,943,599
Accounting Standards Update 2014-09 (Topic 606) [Member]
Cash and cash equivalents		$ 65,592	$ 54,428	$ 52,048	$ 96,165	$ 101,954	318,336
Accounts Receivable, Net, Current		41,640	52,933	50,346	41,810
Current contract assets		270,732	265,686	238,495	237,537
Current contract costs		0	0	0	0
Prepaid expenses and other current assets		11,124	10,330	12,992	10,509
Prepaid income taxes		1,573	921	1,422	2,601
Assets, Current		390,661	384,298	355,303	388,622
Property, equipment and leasehold improvements, net		7,589	8,311	9,006	9,806
Computer software development costs, net		1,452	691	695	646
Goodwill		73,534	74,802	75,649	75,590
Intangible assets, net		31,756	32,889	34,192	35,310
Non-current contract assets		318,752	338,060	353,449	319,840
Contract costs		24,325	23,046	21,296	20,500
Non-current deferred tax assets		1,696	1,651	1,176	1,232
Other non-current assets		1,279	1,075	1,279	1,297
Assets		851,044	864,823	852,045	852,843
Accounts payable		4,023	5,249	2,501	4,230
Accrued expenses and other current liabilities		42,746	36,688	32,000	39,515
Income taxes payable		35,582	43,573	46,869	1,698
Borrowings under credit agreement		220,000	220,000	170,000	170,000
Current deferred revenue		24,415	23,145	23,737	15,150
Liabilities, Current		326,766	328,655	275,107	230,593
Non-current deferred revenue		19,312	18,167	15,046	12,354
Deferred income taxes		135,535	137,872	140,197	184,901
Other non-current liabilities		12,403	16,192	16,833	17,068
Series D redeemable convertible preferred stock, $0.10 par value—Authorized—3,636 shares as of June 30, 2019 and 2018 Issued and outstanding—none as of June 30, 2019 and 2018		0	0	0	0
Common stock, $0.10 par value—Authorized—210,000,000 shares Issued—103,642,292 shares at June 30, 2019 and 103,130,300 shares at June 30, 2018 Outstanding—68,624,566 shares at June 30, 2019 and 71,186,701 shares at June 30, 2018		10,348	10,340	10,328	10,313
Additional paid-in capital		730,830	725,493	724,752	715,475
Retained earnings		1,156,120	1,094,533	1,035,316	997,250
Accumulated other comprehensive income		1,229	70	965	1,388
Treasury Stock, Value		(1,541,499)	(1,466,499)	(1,366,499)	(1,316,499)
Stockholders' Equity Attributable to Parent		357,028	363,937	404,862	407,927	$ 286,243	$ 454,803
Total liabilities and stockholders' equity		851,044	864,823	852,045	852,843
Restatement Adjustment [Member]
Accounts Receivable, Net, Current				3,700
Deferred income taxes				19,400	19,400
Retained earnings				68,300	68,300
Restatement Adjustment [Member] \| Accounting Standards Update 2014-09 (Topic 606) [Member]
Cash and cash equivalents		0	0	0	0
Accounts Receivable, Net, Current		(3,653)	(3,653)	(3,653)	0
Current contract assets		(44,013)	(55,449)	(79,472)	(66,841)
Current contract costs		(24,325)	(23,046)	(21,296)	(20,500)
Prepaid expenses and other current assets		0	0	0	0
Prepaid income taxes		0	0	0	0
Assets, Current		(71,991)	(82,148)	(104,421)	(87,341)
Property, equipment and leasehold improvements, net		0	0	0	0
Computer software development costs, net		0	0	0	0
Goodwill		0	0	0	0
Intangible assets, net		0	0	0	0
Non-current contract assets		(39,957)	(28,521)	(4,498)	(20,782)
Contract costs		24,325	23,046	21,296	20,500
Non-current deferred tax assets		0	0	0	(9,858)
Other non-current assets		0	0	0	0
Assets		(87,623)	(87,623)	(87,623)	(97,481)
Accounts payable		0	0	0	0
Accrued expenses and other current liabilities		0	0	0	0
Income taxes payable		0	0	0	0
Borrowings under credit agreement		0	0	0	0
Current deferred revenue		0	0	0	0
Liabilities, Current		0	0	0	0
Non-current deferred revenue		0	0	0	0
Deferred income taxes		(19,366)	(19,366)	(19,366)	(29,224)
Other non-current liabilities		0	0	0	0
Series D redeemable convertible preferred stock, $0.10 par value—Authorized—3,636 shares as of June 30, 2019 and 2018 Issued and outstanding—none as of June 30, 2019 and 2018		0	0	0	0
Common stock, $0.10 par value—Authorized—210,000,000 shares Issued—103,642,292 shares at June 30, 2019 and 103,130,300 shares at June 30, 2018 Outstanding—68,624,566 shares at June 30, 2019 and 71,186,701 shares at June 30, 2018		0	0	0	0
Additional paid-in capital		0	0	0	0
Retained earnings		(68,257)	(68,257)	(68,257)	(68,257)
Accumulated other comprehensive income		0	0	0	0
Treasury Stock, Value		0	0	0	0
Stockholders' Equity Attributable to Parent		(68,257)	(68,257)	(68,257)	(68,257)
Total liabilities and stockholders' equity		(87,623)	(87,623)	(87,623)	(97,481)
Previously Reported [Member] \| Accounting Standards Update 2014-09 (Topic 606) [Member]
Cash and cash equivalents		65,592	54,428	52,048	96,165
Accounts Receivable, Net, Current		45,293	56,586	53,999	41,810
Current contract assets		314,745	321,135	317,967	304,378
Current contract costs		24,325	23,046	21,296	20,500
Prepaid expenses and other current assets		11,124	10,330	12,992	10,509
Prepaid income taxes		1,573	921	1,422	2,601
Assets, Current		462,652	466,446	459,724	475,963
Property, equipment and leasehold improvements, net		7,589	8,311	9,006	9,806
Computer software development costs, net		1,452	691	695	646
Goodwill		73,534	74,802	75,649	75,590
Intangible assets, net		31,756	32,889	34,192	35,310
Non-current contract assets		358,709	366,581	357,947	340,622
Contract costs		0	0	0	0
Non-current deferred tax assets		1,696	1,651	1,176	11,090
Other non-current assets		1,279	1,075	1,279	1,297
Assets		938,667	952,446	939,668	950,324
Accounts payable		4,023	5,249	2,501	4,230
Accrued expenses and other current liabilities		42,746	36,688	32,000	39,515
Income taxes payable		35,582	43,573	46,869	1,698
Borrowings under credit agreement		220,000	220,000	170,000	170,000
Current deferred revenue		24,415	23,145	23,737	15,150
Liabilities, Current		326,766	328,655	275,107	230,593
Non-current deferred revenue		19,312	18,167	15,046	12,354
Deferred income taxes		154,901	157,238	159,563	214,125
Other non-current liabilities		12,403	16,192	16,833	17,068
Series D redeemable convertible preferred stock, $0.10 par value—Authorized—3,636 shares as of June 30, 2019 and 2018 Issued and outstanding—none as of June 30, 2019 and 2018		0	0	0	0
Common stock, $0.10 par value—Authorized—210,000,000 shares Issued—103,642,292 shares at June 30, 2019 and 103,130,300 shares at June 30, 2018 Outstanding—68,624,566 shares at June 30, 2019 and 71,186,701 shares at June 30, 2018		10,348	10,340	10,328	10,313
Additional paid-in capital		730,830	725,493	724,752	715,475
Retained earnings		1,224,377	1,162,790	1,103,573	1,065,507
Accumulated other comprehensive income		1,229	70	965	1,388
Treasury Stock, Value		(1,541,499)	(1,466,499)	(1,366,499)	(1,316,499)
Stockholders' Equity Attributable to Parent		425,285	432,194	473,119	476,184
Total liabilities and stockholders' equity		$ 938,667	$ 952,446	$ 939,668	$ 950,324

Schedule II - Valuation and Qualifying Accounts (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2016
SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items]
Allowance for doubtful accounts	$ (3,349)
Additions: Charges to Costs and Expenses	(1,621)
Deductions: Returns and Write-Offs	$ 975
Accounting Standards Update 2014-09 (Topic 606) [Member]
SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items]
Allowance for doubtful accounts		$ (2,703)	$ (1,285)	$ (1,604)
Additions: Charges to Costs and Expenses		(2,463)	(1,338)
Deductions: Returns and Write-Offs		$ 1,045	$ 1,657

Revenue from Contracts with Customers Transaction Price Allocated to Remaining Performance Obligations (Details) $ in Thousands	Jun. 30, 2019 USD ($)
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2019-07-01 \| License [Member]
Transaction price allocated to remaining performance obligations	$ 47,869
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2019-07-01 \| Maintenance [Member]
Transaction price allocated to remaining performance obligations	193,348
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2019-07-01 \| Services and other [Member]
Transaction price allocated to remaining performance obligations	43,679
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2020-07-01 \| License [Member]
Transaction price allocated to remaining performance obligations	31,944
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2020-07-01 \| Maintenance [Member]
Transaction price allocated to remaining performance obligations	144,734
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2020-07-01 \| Services and other [Member]
Transaction price allocated to remaining performance obligations	646
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2021-07-01 \| License [Member]
Transaction price allocated to remaining performance obligations	9,820
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2021-07-01 \| Maintenance [Member]
Transaction price allocated to remaining performance obligations	101,127
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2021-07-01 \| Services and other [Member]
Transaction price allocated to remaining performance obligations	594
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2022-07-01 \| License [Member]
Transaction price allocated to remaining performance obligations	3,575
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2022-07-01 \| Maintenance [Member]
Transaction price allocated to remaining performance obligations	64,286
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2022-07-01 \| Services and other [Member]
Transaction price allocated to remaining performance obligations	345
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2023-07-01 \| License [Member]
Transaction price allocated to remaining performance obligations	1,559
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2023-07-01 \| Maintenance [Member]
Transaction price allocated to remaining performance obligations	37,613
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2023-07-01 \| Services and other [Member]
Transaction price allocated to remaining performance obligations	74
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2024-07-01 \| License [Member]
Transaction price allocated to remaining performance obligations	721
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2024-07-01 \| Maintenance [Member]
Transaction price allocated to remaining performance obligations	14,847
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2024-07-01 \| Services and other [Member]
Transaction price allocated to remaining performance obligations	$ 16