Aspen Technology 10-Q 23 Jan 19 2019 Q2 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares	6 Months Ended
	Dec. 31, 2018	Jan. 16, 2019
Document and Entity Information
Entity Registrant Name	ASPEN TECHNOLOGY INC /DE/
Entity Central Index Key	929,940
Document Type	10-Q
Document Period End Date	Dec. 31, 2018
Amendment Flag	false
Current Fiscal Year End Date	--06-30
Entity Current Reporting Status	Yes
Entity Filer Category	Large Accelerated Filer
Entity Emerging Growth Company	false
Entity Small Business	false
Entity Common Stock, Shares Outstanding		69,645,841
Document Fiscal Year Focus	2,019
Document Fiscal Period Focus	Q2

CONSOLIDATED STATEMENTS OF OPER

CONSOLIDATED STATEMENTS OF OPERATIONS (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2018	Dec. 31, 2017
Revenue:
Total revenue	$ 140,423		$ 254,592
Cost of revenue:
Total cost of revenue	14,739		27,966
Gross profit	125,684	$ 112,813	226,626	$ 222,862
Operating expenses:
Selling and marketing	26,310	24,380	53,122	47,951
Research and development	20,317		41,373
General and administrative	15,299	14,178	31,383	27,854
Total operating expenses	61,926		125,878
Income from operations	63,758	54,465	100,748	107,778
Interest income	7,485	40	14,554	181
Interest (expense)	(2,164)		(3,978)
Other (expense), net	(578)		(451)
Income before income taxes	68,501		110,873
Provision for (benefit from) income taxes	9,284	14,928	13,591	31,805
Net income	$ 59,217	$ 38,078	$ 97,282	$ 72,833
Net income per common share:
Basic (in dollars per share)	$ 0.84	$ 0.53	$ 1.38	$ 1
Diluted (in dollars per share)	$ 0.83	$ 0.52	$ 1.36	$ 0.99
Weighted average shares outstanding:
Basic (in shares)	70,428	72,342	70,708	72,683
Diluted (in shares)	71,148	73,036	71,600	73,333
Accounting Standards Update 2014-09 [Member]
Revenue:
Total revenue		$ 105,530		$ 232,017
Cost of revenue:
Total cost of revenue		12,089		24,821
Gross profit		93,441		207,196
Operating expenses:
Selling and marketing		23,928		47,444
Research and development		19,790		39,279
General and administrative		19,618		34,655
Total operating expenses		63,336		121,378
Income from operations		30,105		85,818
Interest income		6,239		12,545
Interest (expense)		(1,261)		(2,467)
Other (expense), net		(238)		(854)
Income before income taxes		34,845		95,042
Provision for (benefit from) income taxes		(97,187)		(77,510)
Net income		$ 132,032		$ 172,552
Net income per common share:
Basic (in dollars per share)		$ 1.83		$ 2.37
Diluted (in dollars per share)		$ 1.81		$ 2.35
Weighted average shares outstanding:
Basic (in shares)		72,342		72,683
Diluted (in shares)		73,036		73,333
License [Member]
Revenue:
Total revenue	$ 93,368	$ 0	$ 157,123	$ 0
Cost of revenue:
Total cost of revenue	1,819		3,484
License [Member] | Accounting Standards Update 2014-09 [Member]
Revenue:
Total revenue		56,975		135,865
Cost of revenue:
Total cost of revenue		1,233		2,464
Maintenance [Member]
Revenue:
Total revenue	41,038	0	84,077	0
Cost of revenue:
Total cost of revenue	5,286		9,279
Maintenance [Member] | Accounting Standards Update 2014-09 [Member]
Revenue:
Total revenue		40,729		80,993
Cost of revenue:
Total cost of revenue		4,250		8,802
Services and other
Revenue:
Total revenue	6,017	7,244	13,392	14,269
Cost of revenue:
Total cost of revenue	$ 7,634		$ 15,203
Services and other | Accounting Standards Update 2014-09 [Member]
Revenue:
Total revenue		7,826		15,159
Cost of revenue:
Total cost of revenue		$ 6,606		$ 13,555

CONSOLIDATED STATEMENTS OF COMP

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2018	Dec. 31, 2017
Net income	$ 59,217	$ 38,078	$ 97,282	$ 72,833
Other comprehensive income (loss):
Foreign currency translation adjustments	(895)		(1,317)
Total other comprehensive income (loss)	(895)		(1,317)
Comprehensive income	$ 58,322		$ 95,965
Accounting Standards Update 2014-09 [Member]
Net income		132,032		172,552
Other comprehensive income (loss):
Foreign currency translation adjustments		73		1,474
Total other comprehensive income (loss)		73		1,474
Comprehensive income		$ 132,105		$ 174,026

CONSOLIDATED BALANCE SHEETS (Un

CONSOLIDATED BALANCE SHEETS (Unaudited) - USD ($) $ in Thousands	Dec. 31, 2018	Jun. 30, 2018
Current assets:
Cash and cash equivalents	$ 54,428	$ 96,165
Accounts receivable, net	56,586	21,910
Current contract assets	321,135	0
Contract costs	23,046	0
Prepaid expenses and other current assets	10,330
Prepaid income taxes	921
Total current assets	466,446
Property, equipment and leasehold improvements, net	8,311	9,806
Computer software development costs, net	691
Goodwill	74,802
Intangible assets, net	32,889	35,310
Non-current contract assets	366,581	0
Non-current contract costs	0
Non-current deferred tax assets	1,651
Other non-current assets	1,075
Total assets	952,446
Current liabilities:
Accounts payable	5,249
Accrued expenses and other current liabilities	36,688	39,515
Income taxes payable	43,573
Borrowings under credit agreement	220,000
Current deferred revenue	23,145	286,845
Total current liabilities	328,655
Non-current deferred revenue	18,167	28,259
Deferred income taxes	157,238	0
Other non-current liabilities	16,192	18,492
Commitments and contingencies (Note 16)
Series D redeemable convertible preferred stock
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	0
Stockholders' deficit:
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
Additional paid-in capital	725,493
Retained earnings	1,162,790	305,208
Accumulated other comprehensive income	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)
Total stockholders’ equity	432,194
Total liabilities and stockholders’ equity	$ 952,446
Accounting Standards Update 2014-09 [Member]
Current assets:
Cash and cash equivalents		96,165
Accounts receivable, net		41,810
Current contract assets		304,378
Contract costs		20,500
Prepaid expenses and other current assets		10,509
Prepaid income taxes		2,601
Total current assets		475,963
Property, equipment and leasehold improvements, net		9,806
Computer software development costs, net		646
Goodwill		75,590
Intangible assets, net		35,310
Non-current contract assets		340,622
Non-current contract costs		0
Non-current deferred tax assets		11,090
Other non-current assets		1,297
Total assets		950,324
Current liabilities:
Accounts payable		4,230
Accrued expenses and other current liabilities		39,515
Income taxes payable		1,698
Borrowings under credit agreement		170,000
Current deferred revenue		15,150
Total current liabilities		230,593
Non-current deferred revenue		12,354
Deferred income taxes		214,125
Other non-current liabilities		17,068
Commitments and contingencies (Note 16)
Series D redeemable convertible preferred stock
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		0
Stockholders' deficit:
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		10,313
Additional paid-in capital		715,475
Retained earnings		1,065,507
Accumulated other comprehensive income		1,388
Treasury stock, at cost—33,592,506 shares of common stock at December 31, 2018 and 31,943,599 shares at June 30, 2018		(1,316,499)
Total stockholders’ equity		476,184
Total liabilities and stockholders’ equity		$ 950,324

CONSOLIDATED BALANCE SHEETS (_2

CONSOLIDATED BALANCE SHEETS (Unaudited) (Parenthetical) - $ / shares	Dec. 31, 2018	Jun. 30, 2018
Series D redeemable convertible preferred stock, par value (in dollars per share)	$ 0.10	$ 0.10
Series D redeemable convertible preferred stock, authorized	3,636	3,636
Series D redeemable convertible preferred stock, issued	0	0
Series D redeemable convertible preferred stock, outstanding	0	0
Common stock, par value (in dollars per share)	$ 0.10	$ 0.10
Common stock, authorized	210,000,000	210,000,000
Common stock, issued	103,395,683	103,130,300
Common stock, outstanding	69,803,177	71,186,701
Treasury stock, shares	33,592,506	31,943,599

CONSOLIDATED STATEMENTS OF STOC

CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY (Unaudited) Statement - USD ($) $ in Thousands	Total	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	AOCI Attributable to Parent [Member]	Treasury Stock [Member]
Common stock, issued	103,130,300	103,130,300				31,943,599
Additional paid-in capital | Accounting Standards Update 2014-09 [Member]	$ 715,475		$ 715,475
Retained earnings	305,208
Retained earnings | Accounting Standards Update 2014-09 [Member]	1,065,507			$ 1,065,507
Accumulated other comprehensive income | Accounting Standards Update 2014-09 [Member]	1,388				$ 1,388
Total stockholders’ equity		$ 10,313				$ (1,316,499)
Total stockholders’ equity | Accounting Standards Update 2014-09 [Member]	476,184
Net income	38,066			38,066
Total other comprehensive income (loss)	(423)				(423)
Exercise of stock options (in shares)		90,009
Exercise of stock options, amount	3,711	$ 9	3,702
Issuance of restricted stock units and net share settlement related to withholding taxes (in shares)		58,829
Issuance of restricted stock units and net share settlement related to withholding taxes, amount	(3,284)	$ 6	(3,290)
Repurchase of common stock (in shares)						473,376
Repurchase of common stock, amount	(50,000)					$ 50,000
Stock-based compensation	8,865		8,865
Net income	97,282
Total other comprehensive income (loss)	(1,317)
Common stock, issued		103,279,138				32,416,975
Additional paid-in capital			724,752
Retained earnings				1,103,573
Accumulated other comprehensive income					965
Total stockholders’ equity	473,119	$ 10,328				$ (1,366,499)
Net income	59,217			59,217
Total other comprehensive income (loss)	(895)				(895)
Exercise of stock options (in shares)		15,902
Exercise of stock options, amount	759	$ 2	757
Issuance of restricted stock units and net share settlement related to withholding taxes (in shares)		100,643
Issuance of restricted stock units and net share settlement related to withholding taxes, amount	(6,341)	$ 10	(6,351)
Repurchase of common stock (in shares)						1,175,531
Repurchase of common stock, amount	(100,000)					$ 100,000
Stock-based compensation	$ 6,335		6,335
Common stock, issued	103,395,683	103,395,683				33,592,506
Additional paid-in capital	$ 725,493		$ 725,493
Retained earnings	1,162,790			$ 1,162,790
Accumulated other comprehensive income	70				$ 70
Total stockholders’ equity	$ 432,194	$ 10,340				$ (1,466,499)

CONSOLIDATED STATEMENTS OF CASH

CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) - USD ($) $ in Thousands	6 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Cash flows from operating activities:
Net income	$ 97,282	$ 72,833
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	4,049
Net foreign currency losses	318
Stock-based compensation	15,200
Deferred income taxes	(47,474)	4,296
Provision for (recovery from) bad debts	827
Other non-cash operating activities	217
Changes in assets and liabilities:
Accounts receivable	(16,464)	(3,656)
Contract assets	(41,928)	0
Contract costs	(2,546)	0
Prepaid expenses, prepaid income taxes, and other assets	1,744
Accounts payable, accrued expenses, income taxes payable and other liabilities	37,718
Deferred revenue	14,154	(41,586)
Net cash provided by operating activities	63,097	54,762
Cash flows from investing activities:
Purchases of property, equipment and leasehold improvements	(180)
Payments for business acquisitions	0
Payments for capitalized computer software costs	(189)
Net cash used in investing activities	(369)
Cash flows from financing activities:
Exercises of stock options	4,466
Repurchases of common stock	(147,423)
Payments of tax withholding obligations related to restricted stock	(9,654)
Deferred business acquisition payments	(1,200)
Proceeds from credit agreement	50,000
Payments of credit agreement issuance costs	0
Net cash used in financing activities	(103,811)
Effect of exchange rate changes on cash and cash equivalents	(654)
Decrease in cash and cash equivalents	(41,737)
Cash and cash equivalents, beginning of period	96,165
Cash and cash equivalents, end of period	54,428
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	5
Change in repurchases of common stock included in accounts payable and accrued expenses	2,577
Supplemental disclosure of cash flow information:
Income taxes paid, net	17,827
Interest paid	3,541
Accounting Standards Update 2014-09 [Member]
Cash flows from operating activities:
Net income		172,552
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization		3,358
Net foreign currency losses		990
Stock-based compensation		11,869
Deferred income taxes		(90,781)
Provision for (recovery from) bad debts		(28)
Other non-cash operating activities		207
Changes in assets and liabilities:
Accounts receivable		(333)
Contract assets		(40,927)
Contract costs		(59)
Prepaid expenses, prepaid income taxes, and other assets		959
Accounts payable, accrued expenses, income taxes payable and other liabilities		(1,792)
Deferred revenue		(1,253)
Net cash provided by operating activities		54,762
Cash flows from investing activities:
Purchases of property, equipment and leasehold improvements		(156)
Payments for business acquisitions		(10,800)
Payments for capitalized computer software costs		(356)
Net cash used in investing activities		(11,312)
Cash flows from financing activities:
Exercises of stock options		3,548
Repurchases of common stock		(105,037)
Payments of tax withholding obligations related to restricted stock		(3,467)
Deferred business acquisition payments		(2,600)
Proceeds from credit agreement		11,000
Payments of credit agreement issuance costs		(351)
Net cash used in financing activities		(96,907)
Effect of exchange rate changes on cash and cash equivalents		206
Decrease in cash and cash equivalents		(53,251)
Cash and cash equivalents, beginning of period	$ 96,165	101,954
Cash and cash equivalents, end of period		48,703
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		(44)
Change in repurchases of common stock included in accounts payable and accrued expenses		(5,037)
Supplemental disclosure of cash flow information:
Income taxes paid, net		29,742
Interest paid		$ 2,039

Interim Unaudited Consolidated

Interim Unaudited Consolidated Financial Statements	6 Months Ended
	Dec. 31, 2018
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Interim Unaudited Consolidated Financial Statements	Interim Unaudited Consolidated Financial Statements The accompanying interim unaudited consolidated financial statements of Aspen Technology, Inc. and its subsidiaries have been prepared on the same basis as our annual consolidated financial statements. We have omitted certain information and footnote disclosures normally included in our annual consolidated financial statements. Such interim unaudited consolidated financial statements have been prepared in conformity with U.S. Generally Accepted Accounting Principles (GAAP), as defined in the Financial Accounting Standards Board (FASB) Accounting Standards Codification (ASC) Topic 270, Interim Reporting , for interim financial information and with the instructions to Rule 10-01 of Regulation S-X. Accordingly, they do not include all of the information and footnotes required by GAAP for complete financial statements. It is suggested that these unaudited consolidated financial statements be read in conjunction with the audited consolidated financial statements for the year ended June 30, 2018 , which are contained in our Annual Report on Form 10-K, as previously filed with the U.S. Securities and Exchange Commission (SEC). In the opinion of management, all adjustments, consisting of normal and recurring adjustments, considered necessary for a fair presentation of the financial position, results of operations, and cash flows at the dates and for the periods presented have been included and all intercompany accounts and transactions have been eliminated in consolidation. The results of operations for the three and six months ended December 31, 2018 are not necessarily indicative of the results to be expected for the subsequent quarter or for the full fiscal year. The preparation of financial statements in conformity with GAAP 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. Unless the context requires otherwise, references to we, our and us refer to Aspen Technology, Inc. and its subsidiaries.

Significant Accounting Policies

Significant Accounting Policies	6 Months Ended
	Dec. 31, 2018
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. (b) Significant Accounting Policies Our significant accounting policies are described in Note 2 to the consolidated financial statements included in our Annual Report on Form 10-K for the fiscal year ended June 30, 2018 . We adopted Accounting Standards Update (ASU) No. 2014-09, Revenue from Contracts with Customers ("Topic 606") and ASU No. 2017-01, Business Combinations (Topic 805) - Clarifying the Definition of a Business effective July 1, 2018. Refer to Note 2 (f), “New Accounting Pronouncements Adopted in Fiscal 2019,” for further information regarding the adoption of Topic 606 and ASU No. 2017-01. There were no other material changes to our significant accounting policies during the three and six months ended December 31, 2018 . (c) 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. (d) Foreign Currency Transactions Foreign currency exchange gains and losses generated from the settlement and remeasurement of transactions denominated in currencies other than the functional currency of our subsidiaries are recognized in our results of operations as incurred as a component of other (expense), net. Net foreign currency exchange losses were $(0.6) million and $(0.5) million during the three and six months ended December 31, 2018 , respectively, and $(0.2) million and $(0.9) million during the three and six months ended December 31, 2017 , respectively. (e) 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. We acquired no technology during the three and six months ended December 31, 2018 and 2017 , respectively. (f) New Accounting Pronouncements Adopted in Fiscal 2019 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 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 Unaudited Consolidated Financial Statements for more information on our accounting policies as a result of the adoption of Topic 606. (g) 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 are currently evaluating the impact of ASU No. 2016-02 on our consolidated financial statements. 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 No. 2018-13, Fair Value Measurement (Topic 820) - Disclosure Framework - Changes to the Disclosure Requirements for Fair Value Measurement. The amendment modifies, removes, and adds certain disclosure requirements on fair value measurements. The ASU is effective for annual periods, including interim periods within those annual periods, beginning after December 15, 2019. The amendments on changes in unrealized gains and losses, the range and weighted average of significant unobservable inputs used to develop Level 3 fair value measurements, and the narrative description of measurement uncertainty should be applied prospectively for only the most recent interim or annual period presented in the initial fiscal year of adoption. All other amendments should be applied retrospectively to all periods presented upon their effective date. Early adoption is permitted. We are currently evaluating the impact of ASU No. 2018-13 on our consolidated financial statements. 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. The adoption of ASU No. 2018-15 did not have a material effect on our consolidated financial statements or related disclosures.

Revenue from Contracts with Cus

Revenue from Contracts with Customers (Notes)	6 Months Ended
	Dec. 31, 2018
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. Term licenses 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, such as customer type and geography. 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: Three Months Ended Six Months Ended 2018 2017 2018 2017 As Adjusted As Adjusted (Dollars in Thousands) Revenue by region: United States $ 41,525 $ 35,949 $ 80,753 $ 89,027 Europe 46,471 34,121 75,417 60,539 Other (1) 52,427 35,460 98,422 82,451 $ 140,423 $ 105,530 $ 254,592 $ 232,017 Revenue by type of performance obligation: Term licenses $ 93,368 $ 56,975 $ 157,123 $ 135,865 Maintenance 41,038 40,729 84,077 80,993 Professional services and other 6,017 7,826 13,392 15,159 $ 140,423 $ 105,530 $ 254,592 $ 232,017 Revenue by segment: Subscription and software $ 134,406 $ 97,704 $ 241,200 $ 216,858 Services and other 6,017 7,826 13,392 15,159 $ 140,423 $ 105,530 $ 254,592 $ 232,017 ____________________________________________ (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 (liabilities) were as follows as of December 31, 2018 and June 30, 2018 : December 31, 2018 June 30, 2018 As Adjusted (Dollars in Thousands) Contract assets $ 687,716 $ 645,000 Deferred revenue (41,312 ) (27,504 ) $ 646,404 $ 617,496 Contract assets and deferred revenue are presented net at the contract level for each reporting period. The change in deferred revenue in the six months ended December 31, 2018 , excluding the impact of the netting of contract assets and deferred revenue, was primarily due to an increase in new billings in advance of revenue recognition, partially offset by $7.2 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 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 Condensed 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 December 31, 2018 to the performance obligations that are unsatisfied (or partially unsatisfied) at the end of the reporting period: Year Ended June 30, 2019 2020 2021 2022 2023 Thereafter (Dollars in Thousands) License $ 30,126 $ 32,680 $ 27,050 $ 9,425 $ 2,423 $ 1,585 Maintenance 82,016 139,991 103,811 68,173 40,263 20,891 Services and other 37,763 7,082 1,408 941 598 196 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 the three and six months ended December 31, 2017: Three Months Ended December 31, 2017 As Previously Reported Adjustments As Adjusted (Dollars in Thousands, Except per Share Data) Consolidated Statements of Operations : License revenue $ — $ 56,975 $ 56,975 Maintenance revenue — 40,729 40,729 Subscription and software revenue 117,658 (117,658 ) — Services and other revenue 7,244 582 7,826 Gross profit 112,813 (19,372 ) 93,441 Selling and marketing expense 24,380 (452 ) 23,928 General and administrative expense 14,178 5,440 19,618 Income from operations 54,465 (24,360 ) 30,105 Interest income 40 6,199 6,239 Provision for (benefit from) income taxes 14,928 (112,115 ) (97,187 ) Net income $ 38,078 $ 93,954 $ 132,032 Net income per common share: Basic $ 0.53 $ 1.83 Diluted $ 0.52 $ 1.81 Weighted average shares outstanding: Basic 72,342 72,342 Diluted 73,036 73,036 Six Months Ended December 31, 2017 As Previously Reported Adjustments As Adjusted (Dollars in Thousands, Except per Share Data) Consolidated Statements of Operations : License revenue $ — $ 135,865 $ 135,865 Maintenance revenue — 80,993 80,993 Subscription and software revenue 233,414 (233,414 ) — Services and other revenue 14,269 890 15,159 Gross profit 222,862 (15,666 ) 207,196 Selling and marketing expense 47,951 (507 ) 47,444 General and administrative expense 27,854 6,801 34,655 Income from operations 107,778 (21,960 ) 85,818 Interest income 181 12,364 12,545 Provision for (benefit from) income taxes 31,805 (109,315 ) (77,510 ) Net income $ 72,833 $ 99,719 $ 172,552 Net income per common share: Basic $ 1.00 $ 2.37 Diluted $ 0.99 $ 2.35 Weighted average shares outstanding: Basic 72,683 72,683 Diluted 73,333 73,333 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 Adjusted (Dollars in Thousands) Consolidated Balance Sheets : ASSETS Current contract assets $ — $ 304,378 $ 304,378 Contract costs — 20,500 20,500 Accounts receivable, net 21,910 19,900 41,810 Non-current contract assets — 340,622 340,622 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 — 214,125 214,125 Other non-current liabilities 18,492 (1,424 ) 17,068 Retained earnings $ 305,208 $ 760,299 $ 1,065,507 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 the six months ended December 31, 2017: Six Months Ended December 31, 2017 As Previously Reported Adjustments As Adjusted (Dollars in Thousands) Consolidated Statements of Cash Flows: Cash flows from operating activities: Net income $ 72,833 $ 99,719 $ 172,552 Adjustments to reconcile net income to net cash provided by operating activities: Deferred income taxes 4,296 (95,077 ) (90,781 ) Changes in assets and liabilities: Contract assets — (40,927 ) (40,927 ) Contract costs — (59 ) (59 ) Accounts receivable 3,656 (3,989 ) (333 ) Deferred revenue (41,586 ) 40,333 (1,253 ) Net cash provided by operating activities $ 54,762 $ — $ 54,762

Fair Value

Fair Value	6 Months Ended
	Dec. 31, 2018
Fair Value Disclosures [Abstract]
Fair Value	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 December 31, 2018 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.

Accounts Receivable

Accounts Receivable	6 Months Ended
	Dec. 31, 2018
Receivables [Abstract]
Accounts Receivable	Accounts Receivable, Net Our accounts receivable, net of the related allowance for doubtful accounts, were as follows as of December 31, 2018 and June 30, 2018 : December 31, June 30, As Adjusted (Dollars in Thousands) Accounts receivable, gross $ 60,116 $ 44,513 Allowance for doubtful accounts (3,530 ) (2,703 ) Accounts receivable, net $ 56,586 $ 41,810 As of December 31, 2018 , we had no customer receivable balances that individually represented 10% or more of our net accounts receivable.

Property and Equipment

Property and Equipment	6 Months Ended
	Dec. 31, 2018
Property, Plant and Equipment [Abstract]
Property and Equipment	Property and Equipment Property, equipment and leasehold improvements consisted of the following as of December 31, 2018 and June 30, 2018 : December 31, June 30, (Dollars in Thousands) Property, equipment and leasehold improvements, at cost: Computer equipment $ 8,322 $ 8,344 Purchased software 24,269 24,225 Furniture & fixtures 6,836 6,850 Leasehold improvements 12,026 12,023 Property, equipment and leasehold improvements, at cost 51,453 51,442 Accumulated depreciation (43,142 ) (41,636 ) Property, equipment and leasehold improvements, net $ 8,311 $ 9,806 During the three months ended December 31, 2018 , we wrote off fully depreciated property, equipment and leasehold improvements that were no longer in use with gross book values of less than $0.1 million .

Acquisitions

Acquisitions	6 Months Ended
	Dec. 31, 2018
Business Combinations [Abstract]
Acquisitions	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 other non-current liabilities in our consolidated balance sheet. A preliminary allocation of the purchase price is as follows. The valuation of the net assets acquired and the deferred tax liabilities are considered preliminary as of December 31, 2018 : Amount (Dollars in Thousands) Liabilities assumed, net $ (1,164 ) Identifiable intangible assets: Technology-related 4,500 Customer relationships 3,800 Goodwill 17,483 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 are each being 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.

Intangible Assets

Intangible Assets	6 Months Ended
	Dec. 31, 2018
Goodwill and Intangible Assets Disclosure [Abstract]
Intangible Assets	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 consisted of the following as of December 31, 2018 and June 30, 2018 : Gross Carrying Amount Accumulated Amortization Effect of Currency Translation Net Carrying Amount (Dollars in Thousands) December 31, 2018: Technology and patents $ 35,644 $ (7,002 ) $ (108 ) $ 28,534 Customer relationships 4,979 (688 ) (90 ) 4,201 Non-compete agreements 553 (399 ) — 154 Total $ 41,176 $ (8,089 ) $ (198 ) $ 32,889 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 is included in cost of license revenue and operating expenses and amounted to approximately $1.2 million and $2.2 million for the three and six months ended December 31, 2018 , respectively, and approximately $0.5 million and $1.1 million for the three and six months ended December 31, 2017 , respectively. Future amortization expense as of December 31, 2018 is expected to be as follows: Year Ended June 30, Amortization Expense (Dollars in Thousands) 2019 $ 2,309 2020 4,688 2021 4,733 2022 4,672 2023 4,587 Thereafter 11,900 Total $ 32,889

Goodwill

Goodwill	6 Months Ended
	Dec. 31, 2018
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill	Goodwill The changes in the carrying amount of goodwill for our subscription and software reporting segment during the six months ended December 31, 2018 were as follows: Gross Carrying Amount Accumulated Impairment Losses Effect of Currency Translation Net Carrying Amount (Dollars in Thousands) June 30, 2018: $ 142,316 $ (65,569 ) $ (1,157 ) $ 75,590 Foreign currency translation — — (788 ) (788 ) December 31, 2018: $ 142,316 $ (65,569 ) $ (1,945 ) $ 74,802 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.

Accrued Expenses and Other Liab

Accrued Expenses and Other Liabilities	6 Months Ended
	Dec. 31, 2018
Balance Sheet Related Disclosures [Abstract]
Accrued Expenses and Other Liabilities	Accrued Expenses and Other Liabilities Accrued expenses and other current liabilities consisted of the following as of December 31, 2018 and June 30, 2018 : December 31, June 30, (Dollars in Thousands) Payroll and payroll-related $ 17,710 $ 21,796 Royalties and outside commissions 3,837 3,333 Professional fees 2,021 1,695 Deferred acquisition payments 500 1,700 Other 12,620 10,991 Total accrued expenses and other current liabilities $ 36,688 $ 39,515 Other non-current liabilities consisted of the following as of December 31, 2018 and June 30, 2018 : December 31, June 30, As Adjusted (Dollars in Thousands) Deferred rent $ 5,804 $ 6,442 Uncertain tax positions 4,059 4,510 Deferred acquisition payments 4,600 4,294 Other 1,729 1,822 Total other non-current liabilities $ 16,192 $ 17,068

Credit Agreement

Credit Agreement	6 Months Ended
	Dec. 31, 2018
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 December 31, 2018 and June 30, 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 December 31, 2018 were 3.81% on $159.0 million of our outstanding borrowings, 3.88% on $50.0 million of our outstanding borrowings, and 3.85% on the remaining $11.0 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 . As of December 31, 2018 we were in compliance with these covenants.

Stock-Based Compensation

Stock-Based Compensation	6 Months Ended
	Dec. 31, 2018
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Stock-Based Compensation	Stock-Based Compensation The weighted average estimated fair value of option awards granted was $26.80 and $31.54 during the three and six months ended December 31, 2018 , respectively, and $16.65 and $16.86 during the three and six months ended December 31, 2017 , respectively. We utilized the Black-Scholes option valuation model with the following weighted average assumptions: Six Months Ended 2018 2017 Risk-free interest rate 2.8 % 1.7 % Expected dividend yield 0.0 % 0.0 % Expected life (in years) 4.6 4.6 Expected volatility factor 26.6 % 28.1 % The stock-based compensation expense under all equity plans and its classification in the unaudited consolidated statements of operations for the three and six months ended December 31, 2018 and 2017 are as follows: Three Months Ended Six Months Ended 2018 2017 2018 2017 (Dollars in Thousands) Recorded as expenses: Cost of maintenance $ 391 $ — $ 537 $ — Cost of services and other 288 324 606 774 Selling and marketing 1,194 1,006 2,526 1,891 Research and development 1,637 1,891 3,932 3,788 General and administrative 2,825 2,234 7,599 5,416 Total stock-based compensation $ 6,335 $ 5,455 $ 15,200 $ 11,869 A summary of stock option and restricted stock unit ("RSU") activity under all equity plans for the six months ended December 31, 2018 is as follows: Stock Options Restricted Stock Units Shares Weighted Average Exercise Price Weighted Average Remaining Contractual Term (Years) 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 271,749 114.72 630,528 114.94 Settled (RSUs) — (260,604 ) 59.12 Exercised (105,911 ) 42.20 — Cancelled / Forfeited (67,659 ) 67.00 (58,694 ) 66.11 Outstanding at December 31, 2018 1,467,621 $ 57.97 7.22 $ 43,905 932,930 $ 92.76 Vested and exercisable at December 31, 2018 841,676 $ 43.97 6.10 $ 33,458 — Vested and expected to vest as of December 31, 2018 1,400,561 $ 57.17 7.15 $ 42,752 876,747 $ 93.82 The weighted average grant-date fair value of RSUs granted was $105.71 and $114.94 during the three and six months ended December 31, 2018 , respectively, and $66.52 and $63.24 during the three and six months ended December 31, 2017 , respectively. The total fair value of shares vested from RSU grants was $15.1 million and $25.0 million during the three and six months ended December 31, 2018 , respectively, and $4.9 million and $10.2 million during the three and six months ended December 31, 2017 , respectively. At December 31, 2018 , the total future unrecognized compensation cost related to stock options was $11.3 million and is expected to be recorded over a weighted average period of 2.8 years. At December 31, 2018 , the total future unrecognized compensation cost related to RSUs was $35.7 million and is expected to be recorded over a weighted average period of 2.8 years. The total intrinsic value of options exercised was $0.7 million and $6.8 million during the three and six months ended December 31, 2018 , respectively, and $1.3 million and $2.9 million during the three and six months ended December 31, 2017 , respectively. We received cash proceeds from option exercises of $0.4 million and $4.5 million during the three and six months ended December 31, 2018 , respectively, and $1.1 million and $3.5 million during the three and six months ended December 31, 2017 , respectively. We withheld withholding taxes on vested RSUs of $6.3 million and $9.6 million during the three and six months ended December 31, 2018 , respectively, and $1.8 million and $3.4 million during the three and six months ended December 31, 2017 , respectively. At December 31, 2018 , common stock reserved for future issuance or settlement under equity compensation plans was 9.9 million shares. During the six months ended December 31, 2018 , 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 annual spend growth, 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. During the six months ended December 31, 2018 , we granted 382,373 RSUs in connection with the performance awards. As of December 31, 2018 , all of the RSUs issued in connection with the performance awards are unvested and outstanding. 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 fair value of the performance awards granted during the six months ended December 31, 2018 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. As of December 31, 2018 , we concluded that the performance metrics related to the performance awards were not probable of achievement; therefore, no compensation expense was recognized during the six months ended December 31, 2018 . On July 26, 2018, our Board of Directors approved the Aspen Technology, Inc. 2018 Employee Stock Purchase Plan (the "ESPP"). 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 is for January 1, 2019 through June 30, 2019.

Stockholders' Deficit

Stockholders' Deficit	6 Months Ended
	Dec. 31, 2018
Equity [Abstract]
Stockholders' Deficit	Stockholders’ Equity Stock Repurchases 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, and December 6, 2018, the Board of Directors approved a $400.0 million , $200.0 million , $200.0 million , and $100.0 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 the three and six months ended December 31, 2018 , we repurchased 1,175,531 and 1,648,907 shares of our common stock in the open market for $100.0 million and $150.0 million , respectively. As of December 31, 2018 , the total remaining value under the Share Repurchase Program was approximately $296.3 million . Accumulated Other Comprehensive Income As of December 31, 2018 and June 30, 2018 , accumulated other comprehensive income was comprised of foreign currency translation adjustments of less than $0.1 million and $1.4 million , respectively.

Net Income Per Share

Net Income Per Share	6 Months Ended
	Dec. 31, 2018
Earnings Per Share [Abstract]
Net Income Per Share	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 three and six months ended December 31, 2018 and 2017 are as follows: Three Months Ended Six Months Ended 2018 2017 2018 2017 As Adjusted As Adjusted (Dollars and Shares in Thousands, Except per Share Data) Net income $ 59,217 $ 132,032 $ 97,282 $ 172,552 Weighted average shares outstanding 70,428 72,342 70,708 72,683 Dilutive impact from: Employee equity awards 720 694 892 650 Dilutive weighted average shares outstanding 71,148 73,036 71,600 73,333 Income per share Basic $ 0.84 $ 1.83 $ 1.38 $ 2.37 Dilutive $ 0.83 $ 1.81 $ 1.36 $ 2.35 For the three and six months ended December 31, 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 December 31, 2018 and 2017 : Three Months Ended Six Months Ended 2018 2017 2018 2017 (Shares in Thousands) Employee equity awards 867 388 812 664 Included in the table above are options to purchase 255,390 and 254,354 shares of our common stock during the three and six months ended December 31, 2018 , respectively, which were not included in the computation of dilutive weighted average shares outstanding, because their exercise prices ranged from $93.59 per share to $116.00 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 December 31, 2018 and expire at various dates through October 23, 2028.

Income Taxes

Income Taxes	6 Months Ended
	Dec. 31, 2018
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes The effective tax rate for the periods presented was primarily the result of income earned in the U.S., taxed at U.S. federal and state statutory income tax rates, income earned in foreign tax jurisdictions taxed at the applicable rates, as well as the impact of permanent differences between book and tax income. 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 effective tax rate was 13.4% and 12.3% during the three and six months ended December 31, 2018 , respectively, and (279.0)% and (81.5)% during the three and six months ended December 31, 2017 , respectively. Our effective tax rate increased for the three and six months ended December 31, 2018 compared to the same period in 2017 due to the tax benefit recorded for the three and six months ended December 31, 2017 for the revaluation of our deferred tax liabilities resulting from the adoption of Topic 606. We adopted Topic 606 effective July 1, 2018 using the full retrospective method, which coincided with the reduction of federal income tax rates due to the enactment of the Tax Act. The reduction in the corporate tax rate from 35.0% to the blended tax rate of 21.0% reduced our deferred tax liabilities established under Topic 606, which resulted in an income tax benefit for the three and six months ended December 31, 2017 . 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. We do not provide deferred taxes on unremitted earnings of our foreign subsidiaries as we intend to indefinitely reinvest those earnings. The Tax Act also included a new provision designed to tax global intangible low-taxed income (“GILTI”). Under U.S. GAAP, we are allowed to make an accounting policy choice to either (i) treat taxes due on future U.S. inclusions in taxable income related to GILTI as a current-period expense when incurred (the "period cost method"); or (ii) factor in such amounts into the measurement of our deferred taxes (the "deferred method"). Our selection of an accounting policy related to the GILTI tax provisions depends, in part, on analyzing our global income to determine whether we expect to have future U.S. inclusions in taxable income related to GILTI and, if so, what the impact is expected to be. While our future global operations depend on a number of different factors, we do expect to have future U.S. inclusions in taxable income related to GILTI. Further, we have made a policy decision to record GILTI tax as a current-period expense when incurred. 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.

Commitments and Contingencies

Commitments and Contingencies	6 Months Ended
	Dec. 31, 2018
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	Commitments and Contingencies Operating Leases We lease certain facilities under non-cancellable operating leases with terms in excess of one year . Rental expense on leased facilities under operating leases was approximately $2.1 million and $4.1 million during the three and six months ended December 31, 2018 , respectively, and approximately $2.0 million and $4.1 million during the three and six months ended December 31, 2017 , respectively. Standby letters of credit for $3.9 million and $3.5 million secure our performance on professional services contracts, certain facility leases and potential liabilities as of December 31, 2018 and June 30, 2018 , respectively. The letters of credit expire at various dates through fiscal 2025.

Segment Information

Segment Information	6 Months Ended
	Dec. 31, 2018
Segment Reporting [Abstract]
Segment Information	Segment 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. 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) Three Months Ended December 31, 2018 Segment revenue $ 134,406 $ 6,017 $ 140,423 Segment expenses (1) (53,732 ) (7,634 ) (61,366 ) Segment profit $ 80,674 $ (1,617 ) $ 79,057 Three Months Ended December 31, 2017, As Adjusted Segment revenue $ 97,704 $ 7,826 $ 105,530 Segment expenses (1) (49,201 ) (6,606 ) (55,807 ) Segment profit $ 48,503 $ 1,220 $ 49,723 Six Months Ended December 31, 2018 Segment revenue $ 241,200 $ 13,392 $ 254,592 Segment expenses (1) (107,258 ) (15,203 ) (122,461 ) Segment profit $ 133,942 $ (1,811 ) $ 132,131 Six Months Ended December 31, 2017, As Adjusted Segment revenue $ 216,858 $ 15,159 $ 232,017 Segment expenses (1) (97,989 ) (13,555 ) (111,544 ) Segment profit $ 118,869 $ 1,604 $ 120,473 (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; interest income, net; and other (expense), net. Reconciliation to Income before Income Taxes The following table presents a reconciliation of total segment profit to income before income taxes for the three and six months ended December 31, 2018 and 2017 : Three Months Ended Six Months Ended 2018 2017 2018 2017 As Adjusted As Adjusted (Dollars in Thousands) Total segment profit for reportable segments $ 79,057 $ 49,723 $ 132,131 $ 120,473 General and administrative expense (15,299 ) (19,618 ) (31,383 ) (34,655 ) Interest income, net 5,321 4,978 10,576 10,078 Other (expense), net (578 ) (238 ) (451 ) (854 ) Income before income taxes $ 68,501 $ 34,845 $ 110,873 $ 95,042

Significant Accounting Polici_2

Significant Accounting Policies (Policies)	6 Months Ended
	Dec. 31, 2018
Accounting Policies [Abstract]
Principles of Consolidation	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.
Loss Contingencies	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.
Foreign Currency Transactions	Foreign Currency Transactions Foreign currency exchange gains and losses generated from the settlement and remeasurement of transactions denominated in currencies other than the functional currency of our subsidiaries are recognized in our results of operations as incurred as a component of other (expense), net. Net foreign currency exchange losses were $(0.6) million and $(0.5) million during the three and six months ended December 31, 2018 , respectively, and $(0.2) million and $(0.9) million during the three and six months ended December 31, 2017 , respectively.
Research and Development Expense	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. We acquired no technology during the three and six months ended December 31, 2018 and 2017 , respectively.
Recently Issued Accounting Pronouncements	(f) New Accounting Pronouncements Adopted in Fiscal 2019 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 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 Unaudited Consolidated Financial Statements for more information on our accounting policies as a result of the adoption of Topic 606. (g) 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 are currently evaluating the impact of ASU No. 2016-02 on our consolidated financial statements. 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 No. 2018-13, Fair Value Measurement (Topic 820) - Disclosure Framework - Changes to the Disclosure Requirements for Fair Value Measurement. The amendment modifies, removes, and adds certain disclosure requirements on fair value measurements. The ASU is effective for annual periods, including interim periods within those annual periods, beginning after December 15, 2019. The amendments on changes in unrealized gains and losses, the range and weighted average of significant unobservable inputs used to develop Level 3 fair value measurements, and the narrative description of measurement uncertainty should be applied prospectively for only the most recent interim or annual period presented in the initial fiscal year of adoption. All other amendments should be applied retrospectively to all periods presented upon their effective date. Early adoption is permitted. We are currently evaluating the impact of ASU No. 2018-13 on our consolidated financial statements. 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. The adoption of ASU No. 2018-15 did not have a material effect on our consolidated financial statements or related disclosures.

Revenue from Contracts with C_2

Revenue from Contracts with Customers (Policies)	6 Months Ended
	Dec. 31, 2018
Revenue from Contracts with Customers [Abstract]
Revenue from Contract with Customer [Policy 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. Term licenses 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, such as customer type and geography. 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: Three Months Ended Six Months Ended 2018 2017 2018 2017 As Adjusted As Adjusted (Dollars in Thousands) Revenue by region: United States $ 41,525 $ 35,949 $ 80,753 $ 89,027 Europe 46,471 34,121 75,417 60,539 Other (1) 52,427 35,460 98,422 82,451 $ 140,423 $ 105,530 $ 254,592 $ 232,017 Revenue by type of performance obligation: Term licenses $ 93,368 $ 56,975 $ 157,123 $ 135,865 Maintenance 41,038 40,729 84,077 80,993 Professional services and other 6,017 7,826 13,392 15,159 $ 140,423 $ 105,530 $ 254,592 $ 232,017 Revenue by segment: Subscription and software $ 134,406 $ 97,704 $ 241,200 $ 216,858 Services and other 6,017 7,826 13,392 15,159 $ 140,423 $ 105,530 $ 254,592 $ 232,017 ____________________________________________ (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 (liabilities) were as follows as of December 31, 2018 and June 30, 2018 : December 31, 2018 June 30, 2018 As Adjusted (Dollars in Thousands) Contract assets $ 687,716 $ 645,000 Deferred revenue (41,312 ) (27,504 ) $ 646,404 $ 617,496 Contract assets and deferred revenue are presented net at the contract level for each reporting period. The change in deferred revenue in the six months ended December 31, 2018 , excluding the impact of the netting of contract assets and deferred revenue, was primarily due to an increase in new billings in advance of revenue recognition, partially offset by $7.2 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 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 Condensed 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 December 31, 2018 to the performance obligations that are unsatisfied (or partially unsatisfied) at the end of the reporting period: Year Ended June 30, 2019 2020 2021 2022 2023 Thereafter (Dollars in Thousands) License $ 30,126 $ 32,680 $ 27,050 $ 9,425 $ 2,423 $ 1,585 Maintenance 82,016 139,991 103,811 68,173 40,263 20,891 Services and other 37,763 7,082 1,408 941 598 196 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 the three and six months ended December 31, 2017: Three Months Ended December 31, 2017 As Previously Reported Adjustments As Adjusted (Dollars in Thousands, Except per Share Data) Consolidated Statements of Operations : License revenue $ — $ 56,975 $ 56,975 Maintenance revenue — 40,729 40,729 Subscription and software revenue 117,658 (117,658 ) — Services and other revenue 7,244 582 7,826 Gross profit 112,813 (19,372 ) 93,441 Selling and marketing expense 24,380 (452 ) 23,928 General and administrative expense 14,178 5,440 19,618 Income from operations 54,465 (24,360 ) 30,105 Interest income 40 6,199 6,239 Provision for (benefit from) income taxes 14,928 (112,115 ) (97,187 ) Net income $ 38,078 $ 93,954 $ 132,032 Net income per common share: Basic $ 0.53 $ 1.83 Diluted $ 0.52 $ 1.81 Weighted average shares outstanding: Basic 72,342 72,342 Diluted 73,036 73,036 Six Months Ended December 31, 2017 As Previously Reported Adjustments As Adjusted (Dollars in Thousands, Except per Share Data) Consolidated Statements of Operations : License revenue $ — $ 135,865 $ 135,865 Maintenance revenue — 80,993 80,993 Subscription and software revenue 233,414 (233,414 ) — Services and other revenue 14,269 890 15,159 Gross profit 222,862 (15,666 ) 207,196 Selling and marketing expense 47,951 (507 ) 47,444 General and administrative expense 27,854 6,801 34,655 Income from operations 107,778 (21,960 ) 85,818 Interest income 181 12,364 12,545 Provision for (benefit from) income taxes 31,805 (109,315 ) (77,510 ) Net income $ 72,833 $ 99,719 $ 172,552 Net income per common share: Basic $ 1.00 $ 2.37 Diluted $ 0.99 $ 2.35 Weighted average shares outstanding: Basic 72,683 72,683 Diluted 73,333 73,333 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 Adjusted (Dollars in Thousands) Consolidated Balance Sheets : ASSETS Current contract assets $ — $ 304,378 $ 304,378 Contract costs — 20,500 20,500 Accounts receivable, net 21,910 19,900 41,810 Non-current contract assets — 340,622 340,622 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 — 214,125 214,125 Other non-current liabilities 18,492 (1,424 ) 17,068 Retained earnings $ 305,208 $ 760,299 $ 1,065,507 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 the six months ended December 31, 2017: Six Months Ended December 31, 2017 As Previously Reported Adjustments As Adjusted (Dollars in Thousands) Consolidated Statements of Cash Flows: Cash flows from operating activities: Net income $ 72,833 $ 99,719 $ 172,552 Adjustments to reconcile net income to net cash provided by operating activities: Deferred income taxes 4,296 (95,077 ) (90,781 ) Changes in assets and liabilities: Contract assets — (40,927 ) (40,927 ) Contract costs — (59 ) (59 ) Accounts receivable 3,656 (3,989 ) (333 ) Deferred revenue (41,586 ) 40,333 (1,253 ) Net cash provided by operating activities $ 54,762 $ — $ 54,762

Intangible Assets (Policies)

Intangible Assets (Policies)	6 Months Ended
	Dec. 31, 2018
Goodwill and Intangible Assets Disclosure [Abstract]
Intangible Assets	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 consisted of the following as of December 31, 2018 and June 30, 2018 : Gross Carrying Amount Accumulated Amortization Effect of Currency Translation Net Carrying Amount (Dollars in Thousands) December 31, 2018: Technology and patents $ 35,644 $ (7,002 ) $ (108 ) $ 28,534 Customer relationships 4,979 (688 ) (90 ) 4,201 Non-compete agreements 553 (399 ) — 154 Total $ 41,176 $ (8,089 ) $ (198 ) $ 32,889 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 is included in cost of license revenue and operating expenses and amounted to approximately $1.2 million and $2.2 million for the three and six months ended December 31, 2018 , respectively, and approximately $0.5 million and $1.1 million for the three and six months ended December 31, 2017 , respectively. Future amortization expense as of December 31, 2018 is expected to be as follows: Year Ended June 30, Amortization Expense (Dollars in Thousands) 2019 $ 2,309 2020 4,688 2021 4,733 2022 4,672 2023 4,587 Thereafter 11,900 Total $ 32,889

Goodwill (Policies)

Goodwill (Policies)	6 Months Ended
	Dec. 31, 2018
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill	Goodwill The changes in the carrying amount of goodwill for our subscription and software reporting segment during the six months ended December 31, 2018 were as follows: Gross Carrying Amount Accumulated Impairment Losses Effect of Currency Translation Net Carrying Amount (Dollars in Thousands) June 30, 2018: $ 142,316 $ (65,569 ) $ (1,157 ) $ 75,590 Foreign currency translation — — (788 ) (788 ) December 31, 2018: $ 142,316 $ (65,569 ) $ (1,945 ) $ 74,802 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.

Revenue from Contracts with C_3

Revenue from Contracts with Customers (Tables)	6 Months Ended
	Dec. 31, 2018
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: Three Months Ended Six Months Ended 2018 2017 2018 2017 As Adjusted As Adjusted (Dollars in Thousands) Revenue by region: United States $ 41,525 $ 35,949 $ 80,753 $ 89,027 Europe 46,471 34,121 75,417 60,539 Other (1) 52,427 35,460 98,422 82,451 $ 140,423 $ 105,530 $ 254,592 $ 232,017 Revenue by type of performance obligation: Term licenses $ 93,368 $ 56,975 $ 157,123 $ 135,865 Maintenance 41,038 40,729 84,077 80,993 Professional services and other 6,017 7,826 13,392 15,159 $ 140,423 $ 105,530 $ 254,592 $ 232,017 Revenue by segment: Subscription and software $ 134,406 $ 97,704 $ 241,200 $ 216,858 Services and other 6,017 7,826 13,392 15,159 $ 140,423 $ 105,530 $ 254,592 $ 232,017 ____________________________________________ (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 (liabilities) were as follows as of December 31, 2018 and June 30, 2018 : December 31, 2018 June 30, 2018 As Adjusted (Dollars in Thousands) Contract assets $ 687,716 $ 645,000 Deferred revenue (41,312 ) (27,504 ) $ 646,404 $ 617,496
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Table Text Block]	Transaction Price Allocated to Remaining Performance Obligations The following table includes the aggregate amount of the transaction price allocated as of December 31, 2018 to the performance obligations that are unsatisfied (or partially unsatisfied) at the end of the reporting period: Year Ended June 30, 2019 2020 2021 2022 2023 Thereafter (Dollars in Thousands) License $ 30,126 $ 32,680 $ 27,050 $ 9,425 $ 2,423 $ 1,585 Maintenance 82,016 139,991 103,811 68,173 40,263 20,891 Services and other 37,763 7,082 1,408 941 598 196
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 the three and six months ended December 31, 2017: Three Months Ended December 31, 2017 As Previously Reported Adjustments As Adjusted (Dollars in Thousands, Except per Share Data) Consolidated Statements of Operations : License revenue $ — $ 56,975 $ 56,975 Maintenance revenue — 40,729 40,729 Subscription and software revenue 117,658 (117,658 ) — Services and other revenue 7,244 582 7,826 Gross profit 112,813 (19,372 ) 93,441 Selling and marketing expense 24,380 (452 ) 23,928 General and administrative expense 14,178 5,440 19,618 Income from operations 54,465 (24,360 ) 30,105 Interest income 40 6,199 6,239 Provision for (benefit from) income taxes 14,928 (112,115 ) (97,187 ) Net income $ 38,078 $ 93,954 $ 132,032 Net income per common share: Basic $ 0.53 $ 1.83 Diluted $ 0.52 $ 1.81 Weighted average shares outstanding: Basic 72,342 72,342 Diluted 73,036 73,036 Six Months Ended December 31, 2017 As Previously Reported Adjustments As Adjusted (Dollars in Thousands, Except per Share Data) Consolidated Statements of Operations : License revenue $ — $ 135,865 $ 135,865 Maintenance revenue — 80,993 80,993 Subscription and software revenue 233,414 (233,414 ) — Services and other revenue 14,269 890 15,159 Gross profit 222,862 (15,666 ) 207,196 Selling and marketing expense 47,951 (507 ) 47,444 General and administrative expense 27,854 6,801 34,655 Income from operations 107,778 (21,960 ) 85,818 Interest income 181 12,364 12,545 Provision for (benefit from) income taxes 31,805 (109,315 ) (77,510 ) Net income $ 72,833 $ 99,719 $ 172,552 Net income per common share: Basic $ 1.00 $ 2.37 Diluted $ 0.99 $ 2.35 Weighted average shares outstanding: Basic 72,683 72,683 Diluted 73,333 73,333 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 Adjusted (Dollars in Thousands) Consolidated Balance Sheets : ASSETS Current contract assets $ — $ 304,378 $ 304,378 Contract costs — 20,500 20,500 Accounts receivable, net 21,910 19,900 41,810 Non-current contract assets — 340,622 340,622 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 — 214,125 214,125 Other non-current liabilities 18,492 (1,424 ) 17,068 Retained earnings $ 305,208 $ 760,299 $ 1,065,507 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 the six months ended December 31, 2017: Six Months Ended December 31, 2017 As Previously Reported Adjustments As Adjusted (Dollars in Thousands) Consolidated Statements of Cash Flows: Cash flows from operating activities: Net income $ 72,833 $ 99,719 $ 172,552 Adjustments to reconcile net income to net cash provided by operating activities: Deferred income taxes 4,296 (95,077 ) (90,781 ) Changes in assets and liabilities: Contract assets — (40,927 ) (40,927 ) Contract costs — (59 ) (59 ) Accounts receivable 3,656 (3,989 ) (333 ) Deferred revenue (41,586 ) 40,333 (1,253 ) Net cash provided by operating activities $ 54,762 $ — $ 54,762

Accounts Receivable (Tables)

Accounts Receivable (Tables)	6 Months Ended
	Dec. 31, 2018
Receivables [Abstract]
Schedule of accounts receivable, net allowance for doubtful accounts	Our accounts receivable, net of the related allowance for doubtful accounts, were as follows as of December 31, 2018 and June 30, 2018 : December 31, June 30, As Adjusted (Dollars in Thousands) Accounts receivable, gross $ 60,116 $ 44,513 Allowance for doubtful accounts (3,530 ) (2,703 ) Accounts receivable, net $ 56,586 $ 41,810

Property and Equipment (Tables)

Property and Equipment (Tables)	6 Months Ended
	Dec. 31, 2018
Property, Plant and Equipment [Abstract]
Schedule of property, equipment and leasehold improvements	Property, equipment and leasehold improvements consisted of the following as of December 31, 2018 and June 30, 2018 : December 31, June 30, (Dollars in Thousands) Property, equipment and leasehold improvements, at cost: Computer equipment $ 8,322 $ 8,344 Purchased software 24,269 24,225 Furniture & fixtures 6,836 6,850 Leasehold improvements 12,026 12,023 Property, equipment and leasehold improvements, at cost 51,453 51,442 Accumulated depreciation (43,142 ) (41,636 ) Property, equipment and leasehold improvements, net $ 8,311 $ 9,806

Acquisitions (Tables)

Acquisitions (Tables)	6 Months Ended
	Dec. 31, 2018
Business Combinations [Abstract]
Schedule of recognized identified assets acquired and liabilities assumed	A preliminary allocation of the purchase price is as follows. The valuation of the net assets acquired and the deferred tax liabilities are considered preliminary as of December 31, 2018 : Amount (Dollars in Thousands) Liabilities assumed, net $ (1,164 ) Identifiable intangible assets: Technology-related 4,500 Customer relationships 3,800 Goodwill 17,483 Deferred tax liabilities (1,619 ) Total assets acquired, net $ 23,000

Intangible Assets (Tables)

Intangible Assets (Tables)	6 Months Ended
	Dec. 31, 2018
Goodwill and Intangible Assets Disclosure [Abstract]
Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block]	Future amortization expense as of December 31, 2018 is expected to be as follows: Year Ended June 30, Amortization Expense (Dollars in Thousands) 2019 $ 2,309 2020 4,688 2021 4,733 2022 4,672 2023 4,587 Thereafter 11,900 Total $ 32,889
Intangible assets	Intangible assets consisted of the following as of December 31, 2018 and June 30, 2018 : Gross Carrying Amount Accumulated Amortization Effect of Currency Translation Net Carrying Amount (Dollars in Thousands) December 31, 2018: Technology and patents $ 35,644 $ (7,002 ) $ (108 ) $ 28,534 Customer relationships 4,979 (688 ) (90 ) 4,201 Non-compete agreements 553 (399 ) — 154 Total $ 41,176 $ (8,089 ) $ (198 ) $ 32,889 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)

Goodwill (Tables)	6 Months Ended
	Dec. 31, 2018
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 segment during the six months ended December 31, 2018 were as follows: Gross Carrying Amount Accumulated Impairment Losses Effect of Currency Translation Net Carrying Amount (Dollars in Thousands) June 30, 2018: $ 142,316 $ (65,569 ) $ (1,157 ) $ 75,590 Foreign currency translation — — (788 ) (788 ) December 31, 2018: $ 142,316 $ (65,569 ) $ (1,945 ) $ 74,802

Accrued Expenses and Other Li_2

Accrued Expenses and Other Liabilities (Tables)	6 Months Ended
	Dec. 31, 2018
Balance Sheet Related Disclosures [Abstract]
Schedule of accrued expenses and other current liabilities	Accrued expenses and other current liabilities consisted of the following as of December 31, 2018 and June 30, 2018 : December 31, June 30, (Dollars in Thousands) Payroll and payroll-related $ 17,710 $ 21,796 Royalties and outside commissions 3,837 3,333 Professional fees 2,021 1,695 Deferred acquisition payments 500 1,700 Other 12,620 10,991 Total accrued expenses and other current liabilities $ 36,688 $ 39,515
Schedule of other non-current liabilities	Other non-current liabilities consisted of the following as of December 31, 2018 and June 30, 2018 : December 31, June 30, As Adjusted (Dollars in Thousands) Deferred rent $ 5,804 $ 6,442 Uncertain tax positions 4,059 4,510 Deferred acquisition payments 4,600 4,294 Other 1,729 1,822 Total other non-current liabilities $ 16,192 $ 17,068

Stock-Based Compensation (Table

Stock-Based Compensation (Tables)	6 Months Ended
	Dec. 31, 2018
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Schedule of weighted average assumptions	We utilized the Black-Scholes option valuation model with the following weighted average assumptions: Six Months Ended 2018 2017 Risk-free interest rate 2.8 % 1.7 % Expected dividend yield 0.0 % 0.0 % Expected life (in years) 4.6 4.6 Expected volatility factor 26.6 % 28.1 %
Schedule of stock-based compensation expense	The stock-based compensation expense under all equity plans and its classification in the unaudited consolidated statements of operations for the three and six months ended December 31, 2018 and 2017 are as follows: Three Months Ended Six Months Ended 2018 2017 2018 2017 (Dollars in Thousands) Recorded as expenses: Cost of maintenance $ 391 $ — $ 537 $ — Cost of services and other 288 324 606 774 Selling and marketing 1,194 1,006 2,526 1,891 Research and development 1,637 1,891 3,932 3,788 General and administrative 2,825 2,234 7,599 5,416 Total stock-based compensation $ 6,335 $ 5,455 $ 15,200 $ 11,869
Schedule of stock option and RSU activity	A summary of stock option and restricted stock unit ("RSU") activity under all equity plans for the six months ended December 31, 2018 is as follows: Stock Options Restricted Stock Units Shares Weighted Average Exercise Price Weighted Average Remaining Contractual Term (Years) 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 271,749 114.72 630,528 114.94 Settled (RSUs) — (260,604 ) 59.12 Exercised (105,911 ) 42.20 — Cancelled / Forfeited (67,659 ) 67.00 (58,694 ) 66.11 Outstanding at December 31, 2018 1,467,621 $ 57.97 7.22 $ 43,905 932,930 $ 92.76 Vested and exercisable at December 31, 2018 841,676 $ 43.97 6.10 $ 33,458 — Vested and expected to vest as of December 31, 2018 1,400,561 $ 57.17 7.15 $ 42,752 876,747 $ 93.82

Net Income Per Share (Tables)

Net Income Per Share (Tables)	6 Months Ended
	Dec. 31, 2018
Earnings Per Share [Abstract]
Schedule of calculations of basic and diluted net income per share and basic and dilutive weighted average shares outstanding	The calculations of basic and diluted net income per share and basic and dilutive weighted average shares outstanding for the three and six months ended December 31, 2018 and 2017 are as follows: Three Months Ended Six Months Ended 2018 2017 2018 2017 As Adjusted As Adjusted (Dollars and Shares in Thousands, Except per Share Data) Net income $ 59,217 $ 132,032 $ 97,282 $ 172,552 Weighted average shares outstanding 70,428 72,342 70,708 72,683 Dilutive impact from: Employee equity awards 720 694 892 650 Dilutive weighted average shares outstanding 71,148 73,036 71,600 73,333 Income per share Basic $ 0.84 $ 1.83 $ 1.38 $ 2.37 Dilutive $ 0.83 $ 1.81 $ 1.36 $ 2.35
Schedule of employee equity awards excluded from the calculation of dilutive weighted average shares outstanding	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 December 31, 2018 and 2017 : Three Months Ended Six Months Ended 2018 2017 2018 2017 (Shares in Thousands) Employee equity awards 867 388 812 664

Segment Information (Tables)

Segment Information (Tables)	6 Months Ended
	Dec. 31, 2018
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) Three Months Ended December 31, 2018 Segment revenue $ 134,406 $ 6,017 $ 140,423 Segment expenses (1) (53,732 ) (7,634 ) (61,366 ) Segment profit $ 80,674 $ (1,617 ) $ 79,057 Three Months Ended December 31, 2017, As Adjusted Segment revenue $ 97,704 $ 7,826 $ 105,530 Segment expenses (1) (49,201 ) (6,606 ) (55,807 ) Segment profit $ 48,503 $ 1,220 $ 49,723 Six Months Ended December 31, 2018 Segment revenue $ 241,200 $ 13,392 $ 254,592 Segment expenses (1) (107,258 ) (15,203 ) (122,461 ) Segment profit $ 133,942 $ (1,811 ) $ 132,131 Six Months Ended December 31, 2017, As Adjusted Segment revenue $ 216,858 $ 15,159 $ 232,017 Segment expenses (1) (97,989 ) (13,555 ) (111,544 ) Segment profit $ 118,869 $ 1,604 $ 120,473 (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; interest income, net; and other (expense), net.
Schedule of reconciliation of total segment operating profit to income before income taxes	The following table presents a reconciliation of total segment profit to income before income taxes for the three and six months ended December 31, 2018 and 2017 : Three Months Ended Six Months Ended 2018 2017 2018 2017 As Adjusted As Adjusted (Dollars in Thousands) Total segment profit for reportable segments $ 79,057 $ 49,723 $ 132,131 $ 120,473 General and administrative expense (15,299 ) (19,618 ) (31,383 ) (34,655 ) Interest income, net 5,321 4,978 10,576 10,078 Other (expense), net (578 ) (238 ) (451 ) (854 ) Income before income taxes $ 68,501 $ 34,845 $ 110,873 $ 95,042

Significant Accounting Polici_3

Significant Accounting Policies - Revenue Recognition and Other Licensing Matters (Details) - USD ($)	6 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Accounting Policies [Abstract]
Technology acquired	$ 0	$ 0

Significant Accounting Polici_4

Significant Accounting Policies - Foreign Currency Transactions (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2018	Dec. 31, 2017
Other income (expense), net
Foreign Currency Transactions
Foreign currency transaction and remeasurement gains (losses)	$ (0.6)	$ (0.2)	$ (0.5)	$ (0.9)

Significant Accounting Polici_5

Significant Accounting Policies - Research and Development Expense (Details) - USD ($)	6 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Accounting Policies [Abstract]
Technology acquired	$ 0	$ 0

Revenue from Contracts with C_4

Revenue from Contracts with Customers Disaggregation of Revenue (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2018	Dec. 31, 2017
Total revenue	$ 140,423		$ 254,592
United States
Total revenue	41,525		80,753
Europe
Total revenue	46,471		75,417
Other
Total revenue	52,427		98,422
Subscription and software
Total revenue	134,406		241,200
Services and other
Total revenue	6,017		13,392
Term Licenses [Member]
Total revenue	93,368	$ 0	157,123	$ 0
Maintenance [Member]
Total revenue	41,038	0	84,077	0
Professional Services And Other [Member]
Total revenue	$ 6,017		$ 13,392
Accounting Standards Update 2014-09 [Member]
Total revenue		105,530		232,017
Accounting Standards Update 2014-09 [Member] | United States
Total revenue		35,949		89,027
Accounting Standards Update 2014-09 [Member] | Europe
Total revenue		34,121		60,539
Accounting Standards Update 2014-09 [Member] | Other
Total revenue		35,460		82,451
Accounting Standards Update 2014-09 [Member] | Subscription and software
Total revenue		97,704		216,858
Accounting Standards Update 2014-09 [Member] | Services and other
Total revenue		7,826		15,159
Accounting Standards Update 2014-09 [Member] | Term Licenses [Member]
Total revenue		56,975		135,865
Accounting Standards Update 2014-09 [Member] | Maintenance [Member]
Total revenue		40,729		80,993
Accounting Standards Update 2014-09 [Member] | Professional Services And Other [Member]
Total revenue		$ 7,826		$ 15,159

Revenue from Contracts with C_5

Revenue from Contracts with Customers Contract Balances (Details) - USD ($) $ in Thousands	6 Months Ended
	Dec. 31, 2018	Jun. 30, 2018
Contract with Customer, Liability, Revenue Recognized	$ 7,200
Deferred Revenue	(41,312)
Net contract assets (liabilities)	646,404
Contract assets	$ 687,716
Accounting Standards Update 2014-09 [Member]
Deferred Revenue		$ (27,504)
Net contract assets (liabilities)		617,496
Contract assets		$ 645,000

Revenue from Contracts with C_6

Revenue from Contracts with Customers Contract Costs (Details)	Dec. 31, 2018
Minimum
Capitalized Contract Cost, Amortization Period	4 years
Maximum
Capitalized Contract Cost, Amortization Period	8 years

Revenue from Contracts with C_7

Revenue from Contracts with Customers Transaction Price Allocated to Remaining Performance Obligations (Details) $ in Thousands	Dec. 31, 2018USD ($)
License [Member] | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2018-07-01
Revenue, Remaining Performance Obligation, Amount	$ 30,126
License [Member] | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2019-07-01
Revenue, Remaining Performance Obligation, Amount	32,680
License [Member] | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2020-07-01
Revenue, Remaining Performance Obligation, Amount	27,050
License [Member] | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2021-07-01
Revenue, Remaining Performance Obligation, Amount	9,425
License [Member] | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2022-07-01
Revenue, Remaining Performance Obligation, Amount	2,423
License [Member] | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2023-07-01
Revenue, Remaining Performance Obligation, Amount	1,585
Maintenance [Member] | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2018-07-01
Revenue, Remaining Performance Obligation, Amount	82,016
Maintenance [Member] | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2019-07-01
Revenue, Remaining Performance Obligation, Amount	139,991
Maintenance [Member] | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2020-07-01
Revenue, Remaining Performance Obligation, Amount	103,811
Maintenance [Member] | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2021-07-01
Revenue, Remaining Performance Obligation, Amount	68,173
Maintenance [Member] | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2022-07-01
Revenue, Remaining Performance Obligation, Amount	40,263
Maintenance [Member] | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2023-07-01
Revenue, Remaining Performance Obligation, Amount	20,891
Services and other | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2018-07-01
Revenue, Remaining Performance Obligation, Amount	37,763
Services and other | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2019-07-01
Revenue, Remaining Performance Obligation, Amount	7,082
Services and other | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2020-07-01
Revenue, Remaining Performance Obligation, Amount	1,408
Services and other | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2021-07-01
Revenue, Remaining Performance Obligation, Amount	941
Services and other | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2022-07-01
Revenue, Remaining Performance Obligation, Amount	598
Services and other | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2023-07-01
Revenue, Remaining Performance Obligation, Amount	$ 196

Revenue from Contracts with C_8

Revenue from Contracts with Customers Impact to Prior Period Information (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended			6 Months Ended
	Dec. 31, 2018	Sep. 30, 2018	Dec. 31, 2017	Dec. 31, 2018	Dec. 31, 2017	Jun. 30, 2018
Current contract assets	$ 321,135			$ 321,135		$ 0
Contract costs	23,046			23,046		0
Total revenue	140,423			254,592
Subscription and Software Revenue			$ 117,658		$ 233,414
Gross Profit	125,684		112,813	226,626	222,862
Selling and marketing	26,310		24,380	53,122	47,951
General and administrative	15,299		14,178	31,383	27,854
Income from operations	63,758		54,465	100,748	107,778
Interest income	7,485		40	14,554	181
Provision for (benefit from) income taxes	9,284		14,928	13,591	31,805
Net income	$ 59,217	$ 38,066	$ 38,078	97,282	72,833
Deferred income taxes				(47,474)	4,296
Contract assets				(41,928)	0
Contract costs				$ (2,546)	$ 0
Earnings Per Share, Basic	$ 0.84		$ 0.53	$ 1.38	$ 1
Earnings Per Share, Diluted	$ 0.83		$ 0.52	$ 1.36	$ 0.99
Weighted Average Number of Shares Outstanding, Basic	70,428		72,342	70,708	72,683
Weighted Average Number of Shares Outstanding, Diluted	71,148		73,036	71,600	73,333
Accounts receivable, net	$ 56,586			$ 56,586		21,910
Non-current contract assets	366,581			366,581		0
Non-current contract costs	0			0
Current deferred revenue	23,145			23,145		286,845
Non-current deferred revenue	18,167			18,167		28,259
Deferred income taxes	157,238			157,238		0
Other non-current liabilities	16,192			16,192		18,492
Retained earnings	1,162,790			1,162,790		305,208
Increase (Decrease) in Accounts Receivable				(16,464)	$ (3,656)
Deferred revenue				14,154	(41,586)
Net Cash Provided by (Used in) Operating Activities, Continuing Operations				63,097	54,762
License [Member]
Total revenue	93,368		$ 0	157,123	0
Maintenance [Member]
Total revenue	41,038		0	84,077	0
Services and other
Total revenue	$ 6,017		7,244	$ 13,392	14,269
Accounting Standards Update 2014-09 [Member]
Current contract assets						304,378
Contract costs						20,500
Total revenue			105,530		232,017
Subscription and Software Revenue			0		0
Gross Profit			93,441		207,196
Selling and marketing			23,928		47,444
General and administrative			19,618		34,655
Income from operations			30,105		85,818
Interest income			6,239		12,545
Provision for (benefit from) income taxes			(97,187)		(77,510)
Net income			$ 132,032		172,552
Deferred income taxes					(90,781)
Contract assets					(40,927)
Contract costs					$ (59)
Earnings Per Share, Basic			$ 1.83		$ 2.37
Earnings Per Share, Diluted			$ 1.81		$ 2.35
Weighted Average Number of Shares Outstanding, Basic			72,342		72,683
Weighted Average Number of Shares Outstanding, Diluted			73,036		73,333
Accounts receivable, net						41,810
Non-current contract assets						340,622
Non-current contract costs						0
Current deferred revenue						15,150
Non-current deferred revenue						12,354
Deferred income taxes						214,125
Other non-current liabilities						17,068
Retained earnings						1,065,507
Increase (Decrease) in Accounts Receivable					$ (333)
Deferred revenue					(1,253)
Net Cash Provided by (Used in) Operating Activities, Continuing Operations					54,762
Accounting Standards Update 2014-09 [Member] | License [Member]
Total revenue			$ 56,975		135,865
Accounting Standards Update 2014-09 [Member] | Maintenance [Member]
Total revenue			40,729		80,993
Accounting Standards Update 2014-09 [Member] | Services and other
Total revenue			7,826		15,159
Difference between Revenue Guidance in Effect before and after Topic 606 [Member]
Current contract assets						304,378
Contract costs						20,500
Subscription and Software Revenue			(117,658)		(233,414)
Gross Profit			(19,372)		(15,666)
Selling and marketing			(452)		(507)
General and administrative			5,440		6,801
Income from operations			(24,360)		(21,960)
Interest income			6,199		12,364
Provision for (benefit from) income taxes			(112,115)		(109,315)
Net income			93,954		99,719
Deferred income taxes					(95,077)
Contract assets					(40,927)
Contract costs					(59)
Accounts receivable, net						19,900
Non-current contract assets						340,622
Current deferred revenue						(271,695)
Non-current deferred revenue						(15,905)
Deferred income taxes						214,125
Other non-current liabilities						(1,424)
Retained earnings						$ 760,299
Increase (Decrease) in Accounts Receivable					(3,989)
Deferred revenue					40,333
Net Cash Provided by (Used in) Operating Activities, Continuing Operations					0
Difference between Revenue Guidance in Effect before and after Topic 606 [Member] | License [Member]
Total revenue			56,975		135,865
Difference between Revenue Guidance in Effect before and after Topic 606 [Member] | Maintenance [Member]
Total revenue			40,729		80,993
Difference between Revenue Guidance in Effect before and after Topic 606 [Member] | Services and other
Total revenue			$ 582		$ 890

Fair Value (Details)

Fair Value (Details) - USD ($) $ in Millions	Dec. 31, 2018	Jun. 30, 2018
Level 1 Inputs
Fair Value
Cash equivalents	$ 1	$ 5

Accounts Receivable - Schedule

Accounts Receivable - Schedule of Accounts Receivable (Details) - USD ($) $ in Thousands	Dec. 31, 2018	Jun. 30, 2018
Accounts Receivable
Account receivable, Gross	$ 60,116
Account receivable, Allowance	(3,530)
Account receivable, Net	$ 56,586	$ 21,910
Accounting Standards Update 2014-09 [Member]
Accounts Receivable
Account receivable, Gross		44,513
Account receivable, Allowance		(2,703)
Account receivable, Net		$ 41,810

Accounts Receivable (Details)

Accounts Receivable (Details)	6 Months Ended
	Dec. 31, 2018
Concentration Risk [Line Items]
Concentration Risk, Customer	0
Accounts Receivable | Customer Concentration Risk
Concentration Risk [Line Items]
Percentage of net accounts receivable	10.00%

Property and Equipment - Proper

Property and Equipment - Property, Equipment and Leasehold Improvements (Details) - USD ($) $ in Thousands	Dec. 31, 2018	Jun. 30, 2018
Property, Plant and Equipment [Line Items]
Property, equipment and leasehold improvements-at cost	$ 51,453	$ 51,442
Accumulated depreciation	(43,142)	(41,636)
Property, equipment and leasehold improvements, net	8,311	9,806
Computer equipment
Property, Plant and Equipment [Line Items]
Property, equipment and leasehold improvements-at cost	8,322	8,344
Purchased software
Property, Plant and Equipment [Line Items]
Property, equipment and leasehold improvements-at cost	24,269	24,225
Furniture & fixtures
Property, Plant and Equipment [Line Items]
Property, equipment and leasehold improvements-at cost	6,836	6,850
Leasehold improvements
Property, Plant and Equipment [Line Items]
Property, equipment and leasehold improvements-at cost	$ 12,026	$ 12,023

Property and Equipment - Narrat

Property and Equipment - Narrative (Details) $ in Millions	3 Months Ended
	Dec. 31, 2018USD ($)
Property, Plant and Equipment [Abstract]
Fully depreciated property, equipment, and leasehold improvements written off, gross book value	$ 0.1

Acquisitions - Narrative (Detai

Acquisitions - Narrative (Details) - USD ($) $ in Thousands	Feb. 05, 2018	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2018	Dec. 31, 2017
Business Acquisition [Line Items]
Cash paid				$ 1,200
Goodwill		$ 74,802		$ 74,802
Effective income tax rate (as a percent)		13.40%	(279.00%)	12.30%	(81.50%)
Apex Optimisation
Business Acquisition [Line Items]
Consideration transferred	$ 23,000
Cash paid	$ 18,400
Future contingent consideration payment		$ 4,600		$ 4,600
Goodwill		17,483		$ 17,483
Weighted average discount rate (as a percent)				28.00%
Effective income tax rate (as a percent)				21.00%
Developed Technology Rights | Apex Optimisation
Business Acquisition [Line Items]
Finite-lived intangible assets acquired		4,500		$ 4,500
Finite-lived intangible asset, useful life				7 years
Customer Relationship | Apex Optimisation
Business Acquisition [Line Items]
Finite-lived intangible assets acquired		$ 3,800		$ 3,800
Finite-lived intangible asset, useful life				7 years

Acquisitions - Schedule of Reco

Acquisitions - Schedule of Recognized Identified Assets Acquired and Liabilities Assumed (Details) $ in Thousands	Dec. 31, 2018USD ($)
Business Acquisition [Line Items]
Goodwill	$ 74,802
Apex Optimisation
Business Acquisition [Line Items]
Tangible assets acquired, net	(1,164)
Goodwill	17,483
Deferred tax liabilities, net	(1,619)
Total assets acquired	23,000
Developed Technology Rights | Apex Optimisation
Business Acquisition [Line Items]
Finite-lived intangible assets acquired	4,500
Customer Relationship | Apex Optimisation
Business Acquisition [Line Items]
Finite-lived intangible assets acquired	$ 3,800

Intangible Assets - Schedule of

Intangible Assets - Schedule of Intangible Assets (Details) - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
	Dec. 31, 2018	Jun. 30, 2018
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 41,176	$ 41,632
Accumulated Amortization	(8,089)	(5,866)
Finite Lived Intangible Assets, Foreign Currency Translation Gain (Loss)	(198)	(456)
Net Carrying Amount	32,889	35,310
Technology and patents
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	35,644	35,898
Accumulated Amortization	(7,002)	(5,182)
Finite Lived Intangible Assets, Foreign Currency Translation Gain (Loss)	(108)	(254)
Net Carrying Amount	28,534	30,462
Customer relationships
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	4,979	5,181
Accumulated Amortization	(688)	(377)
Finite Lived Intangible Assets, Foreign Currency Translation Gain (Loss)	(90)	(202)
Net Carrying Amount	4,201	4,602
Non-compete Agreements
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	553	553
Accumulated Amortization	(399)	(307)
Finite Lived Intangible Assets, Foreign Currency Translation Gain (Loss)	0	0
Net Carrying Amount	$ 154	$ 246

Intangible Assets - Narrative (

Intangible Assets - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2018	Dec. 31, 2017
Goodwill and Intangible Assets Disclosure [Abstract]
Intangible asset amortization expense	$ 1,200	$ 500	$ 2,200	$ 1,100
Amortization expense - 2019	2,309		2,309
Amortization expense - 2020	4,688		4,688
Amortization expense - 2021	4,733		4,733
Amortization expense - 2022	4,672		4,672
Amortization expense - 2023	4,587		4,587
Amortization expense - Thereafter	11,900		11,900
Finite Lived Intangible Assets Future Amortization Expense	$ 32,889		$ 32,889

Goodwill - Goodwill, Net (Detai

Goodwill - Goodwill, Net (Details) - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
	Dec. 31, 2018	Jun. 30, 2018
Goodwill:
Goodwill, net, ending balance	$ 74,802
Subscription and software
Goodwill:
Goodwill, gross, beginning balance	142,316
Accumulated impairment losses, beginning balance	(65,569)
Goodwill, net, beginning balance	75,590
Effect of currency translation	(1,945)
Goodwill, gross, ending balance	142,316	$ 142,316
Accumulated impairment losses, ending balance	(65,569)	(65,569)
Goodwill, net, ending balance	74,802	75,590
Goodwill Foreign Currency Translation Gain Loss [Member] | Subscription and software
Goodwill:
Effect of currency translation	$ (788)	$ (1,157)

Goodwill - Narrative (Details)

Goodwill - Narrative (Details)	6 Months Ended
	Dec. 31, 2018USD ($)
Goodwill [Line Items]
Goodwill, Impairment Loss	$ 0

Accrued Expenses and Other Li_3

Accrued Expenses and Other Liabilities - Accrued Expenses and Other Current Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2018	Jun. 30, 2018
Accrued expenses and other current liabilities
Payroll and payroll-related	$ 17,710	$ 21,796
Royalties and outside commissions	3,837	3,333
Professional fees	2,021	1,695
Deferred acquisition payments	500	1,700
Other	12,620	10,991
Total accrued expenses and other current liabilities	$ 36,688	$ 39,515

Accrued Expenses and Other Li_4

Accrued Expenses and Other Liabilities - Other Non-Current Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2018	Jun. 30, 2018
Other non-current liabilities
Deferred rent	$ 5,804
Uncertain tax positions	4,059
Deferred acquisition payments	4,600
Other	1,729
Total other non-current liabilities	$ 16,192	$ 18,492
Accounting Standards Update 2014-09 [Member]
Other non-current liabilities
Deferred rent		6,442
Uncertain tax positions		4,510
Deferred acquisition payments		4,294
Other		1,822
Total other non-current liabilities		$ 17,068

Credit Agreement (Details)

Credit Agreement (Details)	Feb. 26, 2016USD ($)	Dec. 31, 2018USD ($)	Jun. 30, 2018USD ($)	Aug. 09, 2017USD ($)
Credit Agreement
Amount outstanding		$ 220,000,000
Line of Credit | Credit Agreement
Credit Agreement
Principal amount	$ 250,000,000			$ 350,000,000
Amount outstanding		$ 220,000,000	$ 170,000,000
Margin rate (as a percent)	0.50%
Maximum leverage ratio		3
Minimum interest coverage ratio		3
Line of Credit | Credit Agreement | Minimum
Credit Agreement
Commitment fee percentage (as a percent)	0.20%
Line of Credit | Credit Agreement | Maximum
Credit Agreement
Commitment fee percentage (as a percent)	0.30%
Line of Credit | Credit Agreement | Federal Funds Effective Rate
Credit Agreement
Variable rate spread (as a percent)	0.50%
Line of Credit | Credit Agreement | Adjusted LIBOR
Credit Agreement
Variable rate spread (as a percent)	1.00%
Margin rate (as a percent)	1.50%
Outstanding Borrowing 1 [Member] | Line of Credit | Credit Agreement
Credit Agreement
Amount outstanding		$ 159,000,000
Effective interest rate (as a percent)		3.81%
Outstanding Borrowing 3 [Member] | Line of Credit | Credit Agreement
Credit Agreement
Amount outstanding		$ 50,000,000
Effective interest rate (as a percent)		3.88%
Outstanding Borrowing 2 [Member] | Line of Credit | Credit Agreement
Credit Agreement
Amount outstanding		$ 11,000,000
Effective interest rate (as a percent)		3.85%

Stock-Based Compensation - Addi

Stock-Based Compensation - Additional Disclosures (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2018	Dec. 31, 2017
Stock-based compensation, additional disclosures
Exercises of stock options			$ 4,466
Common stock reserved for future issuance or settlement (in shares)	9,900,000		9,900,000
Share-based Compensation Arrangement by Share-based Payment Award, Purchase Price of Common Stock, Percent			85.00%
Restricted Stock Units
Stock-based compensation, additional disclosures
Weighted average grant-date fair value of RSUs granted	$ 105.71	$ 66.52	$ 114.94	$ 63.24
Total fair value of shares vested from RSU grants	$ 15,100	$ 4,900	$ 25,000	$ 10,200
Total unrecognized compensation cost	35,700		$ 35,700
Total unrecognized compensation cost, period of recognition			2 years 9 months
Excess tax benefits from stock-based compensation	$ 6,300	$ 1,800	$ 9,600	$ 3,400
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period			630,528
Stock Options
Stock-based compensation, additional disclosures
Weighted average fair value (in dollars per share)	$ 26.80	$ 16.65	$ 31.54	$ 16.86
Total unrecognized compensation cost	$ 11,300		$ 11,300
Total unrecognized compensation cost, period of recognition			2 years 9 months
Total intrinsic value of options exercised	700	$ 1,300	$ 6,800	$ 2,900
Exercises of stock options	$ 400	$ 1,100	$ 4,500	$ 3,500
Performance Shares [Member]
Stock-based compensation, additional disclosures
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period	382,373

Stock-Based Compensation - Stoc

Stock-Based Compensation - Stock-Based Compensation Accounting (Details) - Stock Options - $ / shares	3 Months Ended		6 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2018	Dec. 31, 2017
Stock-Based Compensation Accounting
Weighted average fair value (in dollars per share)	$ 26.80	$ 16.65	$ 31.54	$ 16.86
Risk-free interest rate (as a percent)			2.80%	1.70%
Expected dividend yield (as a percent)			0.00%	0.00%
Expected life (in years)			4 years 7 months 6 days	4 years 7 months 6 days
Expected volatility factor (as a percent)			26.60%	28.10%

Stock-Based Compensation - St_2

Stock-Based Compensation - Stock-Based Compensation Expense and its Classification in the Consolidated Statements of Operations (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2018	Dec. 31, 2017
Recorded as expenses:
Total stock-based compensation	$ 6,335	$ 5,455	$ 15,200	$ 11,869
Cost of maintenance
Recorded as expenses:
Total stock-based compensation	391	0	537	0
Cost of maintenance
Recorded as expenses:
Total stock-based compensation	288	324	606	774
Selling and marketing
Recorded as expenses:
Total stock-based compensation	1,194	1,006	2,526	1,891
Research and development
Recorded as expenses:
Total stock-based compensation	1,637	1,891	3,932	3,788
General and administrative
Recorded as expenses:
Total stock-based compensation	$ 2,825	$ 2,234	$ 7,599	$ 5,416

Stock-Based Compensation - St_3

Stock-Based Compensation - Stock Option Activity (Details) - Stock Options $ / shares in Units, $ in Thousands	6 Months Ended	12 Months Ended
	Dec. 31, 2018USD ($)$ / sharesshares	Jun. 30, 2018USD ($)$ / sharesshares
Stock options activity
Outstanding, beginning of period (in shares) | shares	1,369,442
Granted (in shares) | shares	271,749
Exercised (in shares) | shares	(105,911)
Cancelled / Forfeited (in shares) | shares	(67,659)
Outstanding, end of period (in shares) | shares	1,467,621	1,369,442
Vested and exercisable, end of period (in shares) | shares	841,676
Vested and expected to vest, end of period (in shares) | shares	1,400,561
Weighted Average Exercise Price
Outstanding, beginning of period (in dollars per share) | $ / shares	$ 45.93
Granted (in dollars per share) | $ / shares	114.72
Exercised (in dollars per share) | $ / shares	42.20
Cancelled / Forfeited (in dollars per share) | $ / shares	67
Outstanding, end of period (in dollars per share) | $ / shares	57.97	$ 45.93
Vested and exercisable, end of period (in dollars per share) | $ / shares	43.97
Vested and expected to vest, end of period (in dollars per share) | $ / shares	$ 57.17
Weighted Average Remaining Contractual Term
Outstanding, end of period	7 years 2 months 21 days	7 years 2 months 23 days
Vested and exercisable, end of period	6 years 1 month 5 days
Vested and expected to vest, end of period	7 years 1 month 25 days
Aggregate Intrinsic Value
Outstanding, end of period | $	$ 43,905	$ 64,103
Vested and exercisable, end of period | $	33,458
Vested and expected to vest, end of period | $	$ 42,752

Stock-Based Compensation - RSU

Stock-Based Compensation - RSU Activity (Details) - Restricted Stock Units	3 Months Ended		6 Months Ended
	Dec. 31, 2018$ / sharesshares	Dec. 31, 2017$ / shares	Dec. 31, 2018$ / sharesshares	Dec. 31, 2017$ / shares
Restricted stock units activity
Outstanding, beginning of period (in shares) | shares			621,700
Granted (in shares) | shares			630,528
Settled (in shares) | shares			(260,604)
Cancelled / Forfeited (in shares) | shares			(58,694)
Outstanding, end of period (in shares) | shares	932,930		932,930
Vested and expected to vest (in shares) | shares	876,747		876,747
Weighted Average Grant Date Fair Value
Outstanding, beginning of period (in dollars per share) | $ / shares			$ 53.64
Granted (in dollars per share) | $ / shares	$ 105.71	$ 66.52	114.94	$ 63.24
Settled (RSUs) (in dollars per share) | $ / shares			59.12
Cancelled / Forfeited (in dollars per share) | $ / shares			66.11
Outstanding, end of period (in dollars per share) | $ / shares	$ 92.76		$ 92.76
Vested and expected to vest, end of period (in dollars per share) | $ / shares			93.82

Stockholders' Deficit - Stock R

Stockholders' Deficit - Stock Repurchase Program (Details) - USD ($)	3 Months Ended		6 Months Ended
	Dec. 31, 2018	Sep. 30, 2018	Dec. 31, 2018	Dec. 06, 2018	Apr. 18, 2018	Jun. 08, 2017	Apr. 26, 2016	Jan. 22, 2015
Class of Stock [Line Items]
Approved stock repurchase program, authorized amount (up to)				$ 100,000,000	$ 200,000,000	$ 200,000,000	$ 400,000,000	$ 450,000,000
Repurchase of common stock, amount	$ 100,000,000	$ 50,000,000
Remaining capacity under the stock repurchase program	$ 296,300,000		$ 296,300,000
Open Market Transaction
Class of Stock [Line Items]
Repurchase of common stock (in shares)	1,175,531		1,648,907
Repurchase of common stock, amount	$ 100,000,000		$ 150,000,000

Stockholders' Deficit - Accumul

Stockholders' Deficit - Accumulated Other Comprehensive Income (Details) - USD ($) $ in Millions	Dec. 31, 2018	Jun. 30, 2018
Accumulated Other Comprehensive Income
Foreign translation adjustments	$ 0.1	$ 1.4

Net Income Per Share - Calculat

Net Income Per Share - Calculations of Basic and Diluted Net Income per Share and Basic and Dilutive Weighted Average Shares Outstanding (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended			6 Months Ended
	Dec. 31, 2018	Sep. 30, 2018	Dec. 31, 2017	Dec. 31, 2018	Dec. 31, 2017
Net income	$ 59,217	$ 38,066	$ 38,078	$ 97,282	$ 72,833
Weighted average shares outstanding (in shares)	70,428		72,342	70,708	72,683
Dilutive impact from:
Share-based payment awards (in shares)	720			892
Dilutive weighted average shares outstanding (in shares)	71,148		73,036	71,600	73,333
Income per share
Basic (in dollars per share)	$ 0.84		$ 0.53	$ 1.38	$ 1
Dilutive (in dollars per share)	$ 0.83		$ 0.52	$ 1.36	$ 0.99
Accounting Standards Update 2014-09 [Member]
Net income			$ 132,032		$ 172,552
Weighted average shares outstanding (in shares)			72,342		72,683
Dilutive impact from:
Share-based payment awards (in shares)			694		650
Dilutive weighted average shares outstanding (in shares)			73,036		73,333
Income per share
Basic (in dollars per share)			$ 1.83		$ 2.37
Dilutive (in dollars per share)			$ 1.81		$ 2.35

Net Income Per Share - Stock Op

Net Income Per Share - Stock Options Excluded from the Computation of Dilutive Weighted Average Shares Outstanding (Details) - $ / shares	3 Months Ended	6 Months Ended
	Dec. 31, 2018	Dec. 31, 2018
Stock Options
Employee equity awards were excluded from the calculation of dilutive weighted average shares outstanding because their effect would be anti-dilutive
Options to purchase shares of common stock (in shares)	255,390	254,354
Stock Options
Employee equity awards were excluded from the calculation of dilutive weighted average shares outstanding because their effect would be anti-dilutive
Exercise price range, low end of range (in dollars per share)		$ 93.59
Exercise price range, high end of range (in dollars per share)		$ 116

Net Income Per Share - Employee

Net Income Per Share - Employee Equity Awards Excluded from the Calculation of Dilutive Weighted Average Shares Outstanding (Details) - shares shares in Thousands	3 Months Ended		6 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2018	Dec. 31, 2017
Employee Equity Awards
Employee equity awards were excluded from the calculation of dilutive weighted average shares outstanding because their effect would be anti-dilutive
Employee equity awards (in shares)	867	388	812	664

Income Taxes (Details)

Income Taxes (Details)	3 Months Ended		6 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2018	Dec. 31, 2017
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent			21.00%	35.00%
Effective income tax rate (as a percent)	13.40%	(279.00%)	12.30%	(81.50%)

Commitments and Contingencies -

Commitments and Contingencies - Rental Expense (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2018	Dec. 31, 2017
Operating Leases
Rent expense	$ 2.1	$ 2	$ 4.1	$ 4.1
Minimum
Operating Leases
Operating lease terms	1 year		1 year

Commitments and Contingencies_2

Commitments and Contingencies - Standby Letters of Credit (Details) - USD ($) $ in Millions	Dec. 31, 2018	Jun. 30, 2018
Standby Letter of Credit
Operating Leases
Standby letters of credit	$ 3.9	$ 3.5

Segment Information - Summary o

Segment Information - Summary of Reportable Segments' Profits (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2018	Dec. 31, 2017
Summary of reportable segments' profits
Income from operations	$ 63,758	$ 54,465	$ 100,748	$ 107,778
Operating segments
Summary of reportable segments' profits
Segment revenue	140,423		254,592
Segment expenses	(61,366)		(122,461)
Income from operations	79,057		132,131
Subscription and software | Operating segments
Summary of reportable segments' profits
Segment revenue	134,406		241,200
Segment expenses	(53,732)		(107,258)
Income from operations	80,674		133,942
Services and other | Operating segments
Summary of reportable segments' profits
Segment revenue	6,017		13,392
Segment expenses	(7,634)		(15,203)
Income from operations	$ (1,617)		$ (1,811)
Accounting Standards Update 2014-09 [Member]
Summary of reportable segments' profits
Income from operations		30,105		85,818
Accounting Standards Update 2014-09 [Member] | Operating segments
Summary of reportable segments' profits
Segment revenue		105,530		232,017
Segment expenses		(55,807)		(111,544)
Income from operations		49,723		120,473
Accounting Standards Update 2014-09 [Member] | Subscription and software | Operating segments
Summary of reportable segments' profits
Segment revenue		97,704		216,858
Segment expenses		(49,201)		(97,989)
Income from operations		48,503		118,869
Accounting Standards Update 2014-09 [Member] | Services and other | Operating segments
Summary of reportable segments' profits
Segment revenue		7,826		15,159
Segment expenses		(6,606)		(13,555)
Income from operations		$ 1,220		$ 1,604

Segment Information - Reconcili

Segment Information - Reconciliation of Total Segment Profit to Income before Income Taxes (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2018	Dec. 31, 2017
Reconciliation to Income before Income Taxes
Total segment profit for reportable segments	$ 63,758	$ 54,465	$ 100,748	$ 107,778
General and administrative	(15,299)	(14,178)	(31,383)	(27,854)
Other (expense) income, net	(578)		(451)
Income before income taxes	68,501		110,873
Operating segments
Reconciliation to Income before Income Taxes
Total segment profit for reportable segments	79,057		132,131
Segment Reconciling Items
Reconciliation to Income before Income Taxes
General and administrative	(15,299)		(31,383)
Other (expense) income, net	5,321		10,576
Other (expense), net	$ (578)		$ (451)
Accounting Standards Update 2014-09 [Member]
Reconciliation to Income before Income Taxes
Total segment profit for reportable segments		30,105		85,818
General and administrative		(19,618)		(34,655)
Other (expense) income, net		(238)		(854)
Income before income taxes		34,845		95,042
Accounting Standards Update 2014-09 [Member] | Operating segments
Reconciliation to Income before Income Taxes
Total segment profit for reportable segments		49,723		120,473
Accounting Standards Update 2014-09 [Member] | Segment Reconciling Items
Reconciliation to Income before Income Taxes
General and administrative		(19,618)		(34,655)
Other (expense) income, net		4,978		10,078
Other (expense), net		$ (238)		$ (854)