ANSYS (ANSS) 10-Q 5 Nov 15 2015 Q3 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares	9 Months Ended
	Sep. 30, 2015	Oct. 31, 2015
Document And Entity Information [Abstract]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Sep. 30, 2015
Document Fiscal Year Focus	2,015
Document Fiscal Period Focus	Q3
Trading Symbol	ANSS
Entity Registrant Name	ANSYS INC
Entity Central Index Key	1,013,462
Current Fiscal Year End Date	--12-31
Entity Filer Category	Large Accelerated Filer
Entity Common Stock, Shares Outstanding		88,992,196

CONDENSED CONSOLIDATED BALANCE

CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Sep. 30, 2015	Dec. 31, 2014
Current assets:
Cash and cash equivalents	$ 776,239	$ 788,064
Short-term investments	684	714
Accounts receivable, less allowance for doubtful accounts of $5,400 and $5,500, respectively	91,470	101,229
Other receivables and current assets	148,160	192,308
Deferred income taxes	28,711	28,178
Total current assets	1,045,264	1,110,493
Property and equipment, net	58,590	64,643
Goodwill	1,334,509	1,312,182
Other intangible assets, net	233,262	259,312
Other long-term assets	5,665	6,187
Deferred income taxes	24,276	21,286
Total assets	2,701,566	2,774,103
Current liabilities:
Accounts payable	3,220	3,421
Accrued bonuses and commissions	32,159	47,001
Accrued income taxes	3,000	7,127
Deferred income taxes	23	24
Other accrued expenses and liabilities	53,850	74,862
Deferred revenue	319,705	332,664
Total current liabilities	411,957	465,099
Long-term liabilities:
Deferred income taxes	29,396	37,390
Other long-term liabilities	48,617	54,113
Total long-term liabilities	$ 78,013	$ 91,503
Commitments and contingencies
Stockholders' equity:
Preferred stock, $.01 par value; 2,000,000 shares authorized; zero shares issued or outstanding	$ 0	$ 0
Common stock, $.01 par value; 300,000,000 shares authorized; 93,236,023 shares issued	932	932
Additional paid-in capital	891,920	904,825
Retained earnings	1,724,008	1,539,508
Treasury stock, at cost: 4,222,634 and 2,470,675 shares, respectively	(358,898)	(196,010)
Accumulated other comprehensive loss	(46,366)	(31,754)
Total stockholders' equity	2,211,596	2,217,501
Total liabilities and stockholders' equity	$ 2,701,566	$ 2,774,103

CONDENSED CONSOLIDATED BALANCE3

CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($) $ in Thousands	Sep. 30, 2015	Dec. 31, 2014
Allowance for doubtful accounts	$ 5,400	$ 5,500
Preferred stock, par value	$ 0.01	$ 0.01
Preferred stock, shares authorized	2,000,000	2,000,000
Preferred stock, shares issued	0	0
Preferred stock, shares outstanding	0	0
Common stock, par value	$ 0.01	$ 0.01
Common stock, shares authorized	300,000,000	300,000,000
Common stock, shares issued	93,236,023	93,236,023
Treasury stock, shares	4,222,634	2,470,675

CONDENSED CONSOLIDATED STATEMEN

CONDENSED CONSOLIDATED STATEMENTS OF INCOME - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Revenue:
Software licenses	$ 140,197	$ 139,965	$ 405,655	$ 406,883
Maintenance and service	97,643	94,035	285,451	274,763
Total revenue	237,840	234,000	691,106	681,646
Cost of sales:
Software licenses	6,889	7,095	21,048	21,603
Amortization	9,818	9,477	28,918	28,198
Maintenance and service	19,874	20,622	60,288	63,816
Total cost of sales	36,581	37,194	110,254	113,617
Gross profit	201,259	196,806	580,852	568,029
Operating expenses:
Selling, general and administrative	61,367	58,172	181,640	174,002
Research and development	44,784	41,033	127,439	123,251
Amortization	4,925	6,793	15,037	17,374
Total operating expenses	111,076	105,998	324,116	314,627
Operating income	90,183	90,808	256,736	253,402
Interest expense	(95)	(149)	(371)	(578)
Interest income	674	655	2,125	2,206
Other (expense) income, net	(383)	(395)	475	(772)
Income before income tax provision	90,379	90,919	258,965	254,258
Income tax provision	24,346	25,440	74,465	69,201
Net income	$ 66,033	$ 65,479	$ 184,500	$ 185,057
Earnings per share - basic:
Basic earnings per share	$ 0.74	$ 0.71	$ 2.05	$ 2.01
Weighted average shares - basic	89,694	91,875	89,873	92,224
Earnings per share - diluted:
Diluted earnings per share	$ 0.72	$ 0.70	$ 2.01	$ 1.96
Weighted average shares - diluted	91,593	93,905	91,820	94,397

CONDENSED CONSOLIDATED STATEME5

CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Net income	$ 66,033	$ 65,479	$ 184,500	$ 185,057
Other comprehensive loss:
Foreign currency translation adjustments	(1,854)	(19,348)	(14,612)	(15,890)
Comprehensive income	$ 64,179	$ 46,131	$ 169,888	$ 169,167

CONDENSED CONSOLIDATED STATEME6

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014
Cash flows from operating activities:
Net income	$ 184,500	$ 185,057
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	58,782	61,223
Deferred income tax benefit	(7,301)	(13,698)
Provision for bad debts	1,286	1,645
Stock-based compensation expense	25,731	27,583
Excess tax benefits from stock-based compensation	(6,366)	(9,619)
Other	1,473	20
Changes in operating assets and liabilities:
Accounts receivable	6,707	14,093
Other receivables and current assets	35,330	48,561
Other long-term assets	396	434
Accounts payable, accrued expenses and current liabilities	(33,255)	(18,859)
Accrued income taxes	2,389	5,856
Deferred revenue	(6,557)	(2,080)
Other long-term liabilities	(4,788)	(7,182)
Net cash provided by operating activities	258,327	293,034
Cash flows from investing activities:
Acquisitions, net of cash acquired	(40,892)	(102,517)
Capital expenditures	(10,765)	(20,628)
Other investing activities	(2)	(169)
Net cash used in investing activities	(51,659)	(123,314)
Cash flows from financing activities:
Principal payments on capital leases	(15)	(86)
Purchase of treasury stock	(242,748)	(108,613)
Restricted stock withholding taxes paid in lieu of issued shares	(4,431)	(5,108)
Contingent consideration payments	(1,173)	(4,504)
Proceeds from shares issued for stock-based compensation	36,563	26,723
Excess tax benefits from stock-based compensation	6,366	9,619
Net cash used in financing activities	(205,438)	(81,969)
Effect of exchange rate fluctuations on cash and cash equivalents	(13,055)	(13,432)
Net (decrease) increase in cash and cash equivalents	(11,825)	74,319
Cash and cash equivalents, beginning of period	788,064	742,486
Cash and cash equivalents, end of period	776,239	816,805
Supplemental disclosures of cash flow information:
Income taxes paid	77,867	90,606
Interest paid	609	633
Fair value of stock options and restricted stock awards assumed in connection with acquisitions	3,528	68
Construction-in-progress - leased facility	$ 0	$ 13,873

Organization

Organization	9 Months Ended
	Sep. 30, 2015
Organization	Organization ANSYS, Inc. (hereafter the "Company" or "ANSYS") develops and globally markets engineering simulation software and technologies widely used by engineers, designers, researchers and students across a broad spectrum of industries and academia, including aerospace, automotive, manufacturing, electronics, biomedical, energy and defense. As of January 1, 2015, the Company began to operate as one segment when two legal entities merged and a third insignificant acquired segment was no longer separately reported internally. Given the integrated approach to the multi-discipline problem-solving needs of the Company's customers, a single sale of software may contain components from multiple product areas and include combined technologies. The Company also has a multi-year product and integration strategy that will result in new, combined products or changes to or discontinuation of the historical product offerings. As a result, it is impracticable for the Company to provide accurate historical or current reporting among its various product lines.

Accounting Policies

Accounting Policies	9 Months Ended
	Sep. 30, 2015
Accounting Policies	Accounting Policies Basis of Presentation The accompanying unaudited condensed consolidated financial statements have been prepared by ANSYS in accordance with accounting principles generally accepted in the United States for interim financial information for commercial and industrial companies and the instructions to the Quarterly Report on Form 10-Q and Rule 10-01 of Regulation S-X. Accordingly, the accompanying statements do not include all of the information and footnotes required by accounting principles generally accepted in the United States for complete financial statements. The accompanying condensed consolidated financial statements should be read in conjunction with the Company's audited consolidated financial statements (and notes thereto) included in the Company's Annual Report on Form 10-K for the year ended December 31, 2014 . The condensed consolidated December 31, 2014 balance sheet presented is derived from the audited December 31, 2014 balance sheet included in the most recent Annual Report on Form 10-K. In the opinion of management, all adjustments considered necessary for a fair presentation of the financial statements have been included, and all adjustments are of a normal and recurring nature. Operating results for the three and nine months ended September 30, 2015 are not necessarily indicative of the results that may be expected for any future period. Cash and Cash Equivalents Cash and cash equivalents consist primarily of highly liquid investments such as deposits held at major banks and money market mutual funds. Cash equivalents are carried at cost, which approximates fair value. The Company’s cash and cash equivalent balances comprise the following: September 30, 2015 December 31, 2014 (in thousands, except percentages) Amount % of Total Amount % of Total Cash accounts $ 423,132 54.5 $ 506,731 64.3 Money market mutual funds 353,107 45.5 281,333 35.7 Total $ 776,239 $ 788,064 The Company's money market mutual fund balances are held in various funds of a single issuer.

Acquisitions

Acquisitions	9 Months Ended
	Sep. 30, 2015
Acquisitions	Acquisitions 2015 Acquisitions During the nine months ended September 30, 2015 , the Company completed various acquisitions to accelerate development of new and innovative products to the marketplace while lowering design and engineering costs for customers. The acquisitions were not individually significant. The combined purchase price of the acquisitions was approximately $44.4 million , which included cash and equity. The operating results of each acquisition have been included in the Company's condensed consolidated financial statements since each respective date of acquisition. The effects of the business combinations were not individually material to the Company's consolidated results of operations. The total consideration transferred was allocated to the assets and liabilities of each acquisition based on management's estimates of the fair values of the assets acquired and liabilities assumed. The allocation included $19.1 million to identifiable intangible assets to be amortized over periods between five and ten years, and $28.5 million to goodwill, inclusive of any measurement-period adjustments recorded since the respective acquisition dates. The fair values of the assets acquired and liabilities assumed are based on provisional calculations and the estimates and assumptions for these items are subject to change during the measurement period (up to one year from the acquisition date) as the Company obtains new information about facts and circumstances that existed as of the acquisition date that, if known, would have affected the measurement of the amounts recognized as of that date. In valuing deferred revenue on the balance sheet as of each acquisition date, the Company applied the fair value provisions applicable to the accounting for business combinations. Acquired deferred revenues with a combined historical carrying value of $0.9 million were ascribed no fair value on the opening balance sheets. As a result, the Company's post-acquisition revenue will be less than the sum of what would have otherwise been reported by ANSYS and each acquiree absent the acquisitions. The impacts on reported revenue for the three and nine months ended September 30, 2015 were $0.2 million and $0.6 million , respectively. The expected impacts on reported revenue are $0.2 million for the quarter ending December 31, 2015 and $0.1 million for the year ending December 31, 2016. SpaceClaim Corporation On April 30, 2014, the Company completed the acquisition of SpaceClaim Corporation ("SpaceClaim"), a leading provider of 3-D modeling technology. Under the terms of the agreement, the Company acquired SpaceClaim for a purchase price of $85.0 million , which was paid almost entirely in cash. SpaceClaim's software provides customers with a powerful and intuitive 3-D direct modeling solution to author new concepts and then leverage the power of simulation to rapidly iterate on these designs to drive innovation. The broad appeal of the SpaceClaim technology can help the Company deliver simulation tools to any engineer in any industry. The operating results of SpaceClaim have been included in the Company's condensed consolidated financial statements since April 30, 2014, the date of acquisition. The assets and liabilities of SpaceClaim have been recorded based upon management's estimates of their fair market values as of the acquisition date. The following tables summarize the fair value of consideration transferred and the fair values of identified assets acquired and liabilities assumed at the acquisition date, as adjusted within the one-year measurement period: Fair Value of Consideration Transferred: (in thousands) Cash $ 84,892 ANSYS replacement stock options 68 Total consideration transferred at fair value $ 84,960 Recognized Amounts of Identifiable Assets Acquired and Liabilities Assumed: (in thousands) Cash $ 723 Accounts receivable and other tangible assets 1,857 Developed technology (10-year life) 15,800 Customer relationships (6-year life) 9,400 Trade name (6-year life) 1,300 Contract backlog (6-year life) 550 Non-compete agreement (2-year life) 300 Net deferred tax assets 9,288 Accounts payable and other liabilities (2,011 ) Deferred revenue (700 ) Total identifiable net assets $ 36,507 Goodwill $ 48,453 The goodwill, which is not tax-deductible, is attributed to intangible assets that do not qualify for separate recognition, including the assembled workforce of the acquired business and the synergies expected to arise as a result of the acquisition of SpaceClaim. During the one-year measurement period since the SpaceClaim acquisition date, the Company adjusted the fair values of the assets acquired and liabilities assumed, with the offset recorded as a $4.8 million decrease to goodwill. These adjustments were made as the Company obtained new information about facts and circumstances that existed as of the acquisition date that, if known, would have affected the measurement of the amounts recognized as of that date. In valuing deferred revenue on the SpaceClaim balance sheet as of the acquisition date, the Company applied the fair value provisions applicable to the accounting for business combinations. Acquired deferred revenue with a historical carrying value of $3.3 million was ascribed a fair value of $0.7 million on the opening balance sheet. As a result, the Company's post-acquisition revenue will be less than the sum of what would have otherwise been reported by ANSYS and SpaceClaim absent the acquisition. The impacts on reported revenue for the three and nine months ended September 30, 2015 were $0.1 million and $0.6 million , respectively. Reaction Design On January 3, 2014, the Company completed the acquisition of Reaction Design, a leading developer of chemistry simulation software. Under the terms of the agreement, the Company acquired Reaction Design for a purchase price of $19.1 million in cash. Reaction Design's solutions enable transportation manufacturers and energy companies to rapidly achieve their clean technology goals by automating the analysis of chemical processes via computer simulation and modeling solutions. The operating results of Reaction Design have been included in the Company's condensed consolidated financial statements since January 3, 2014, the date of acquisition. The total consideration transferred was allocated to the assets and liabilities of Reaction Design based on management's estimates of the fair values of the assets acquired and liabilities assumed. The allocation included $7.0 million to identifiable intangible assets, including core technology, customer lists and trade names, to be amortized over periods between two and eleven years, and $9.2 million to goodwill, which is not tax-deductible. These amounts include measurement-period adjustments. During the one-year measurement period since the Reaction Design acquisition date, the Company adjusted the fair values of the assets acquired and liabilities assumed, with the offset recorded as an increase to goodwill of $1.9 million and a reduction in noncontrolling interest of $0.6 million . These adjustments were made as the Company obtained new information about facts and circumstances that existed as of the acquisition date that, if known, would have affected the measurement of the amounts recognized as of that date. In valuing deferred revenue on the Reaction Design balance sheet as of the acquisition date, the Company applied the fair value provisions applicable to the accounting for business combinations. Acquired deferred revenue with a historical carrying value of $2.3 million was ascribed no fair value on the opening balance sheet. As a result, the Company's post-acquisition revenue will be less than the sum of what would have otherwise been reported by ANSYS and Reaction Design absent the acquisition. The impact on reported revenue for the nine months ended September 30, 2015 was $0.2 million .

Other Receivables and Current A

Other Receivables and Current Assets	9 Months Ended
	Sep. 30, 2015
Other Receivables and Current Assets	Other Receivables and Current Assets The Company's other receivables and current assets comprise the following balances: (in thousands) September 30, December 31, Receivables related to unrecognized revenue $ 115,689 $ 152,830 Income taxes receivable, including overpayments and refunds 10,201 18,276 Prepaid expenses and other current assets 22,270 21,202 Total other receivables and current assets $ 148,160 $ 192,308 Receivables for unrecognized revenue represent the current portion of billings made for annual lease licenses and software maintenance that have not yet been recognized as revenue.

Earnings Per Share

Earnings Per Share	9 Months Ended
	Sep. 30, 2015
Earnings Per Share	Earnings Per Share Basic earnings per share ("EPS") amounts are computed by dividing earnings by the weighted average number of common shares outstanding during the period. Diluted EPS amounts assume the issuance of common stock for all potentially dilutive equivalents outstanding. To the extent stock options are anti-dilutive, they are excluded from the calculation of diluted EPS. The details of basic and diluted EPS are as follows: Three Months Ended Nine Months Ended (in thousands, except per share data) September 30, September 30, September 30, September 30, Net income $ 66,033 $ 65,479 $ 184,500 $ 185,057 Weighted average shares outstanding – basic 89,694 91,875 89,873 92,224 Dilutive effect of stock plans 1,899 2,030 1,947 2,173 Weighted average shares outstanding – diluted 91,593 93,905 91,820 94,397 Basic earnings per share $ 0.74 $ 0.71 $ 2.05 $ 2.01 Diluted earnings per share $ 0.72 $ 0.70 $ 2.01 $ 1.96 Anti-dilutive shares 204 237 221 877

Goodwill and Intangible Assets

Goodwill and Intangible Assets	9 Months Ended
	Sep. 30, 2015
Goodwill and Intangible Assets	Goodwill and Intangible Assets The Company's intangible assets and estimated useful lives are classified as follows: September 30, 2015 December 31, 2014 (in thousands) Gross Carrying Amount Accumulated Amortization Gross Carrying Amount Accumulated Amortization Amortized intangible assets: Developed software and core technologies (3 – 11 years) $ 339,745 $ (245,039 ) $ 321,076 $ (227,298 ) Customer lists and contract backlog (5 – 15 years) 217,111 (133,903 ) 221,159 (121,380 ) Trade names (2 – 10 years) 127,999 (73,070 ) 114,432 (63,082 ) Non-compete agreement (2 years) 300 (238 ) 300 (52 ) Total $ 685,155 $ (452,250 ) $ 656,967 $ (411,812 ) Unamortized intangible assets: Trade names $ 357 $ 14,157 The decrease in unamortized trade names in the table above was due to the determination that a trade name no longer had an indefinite life. Amortization expense for the intangible assets reflected above was $14.7 million and $16.3 million for the three months ended September 30, 2015 and 2014 , respectively. Amortization expense for the intangible assets reflected above was $44.0 million and $45.6 million for the nine months ended September 30, 2015 and 2014 , respectively. As of September 30, 2015 , estimated future amortization expense for the intangible assets reflected above is as follows: (in thousands) Remainder of 2015 $ 13,946 2016 50,227 2017 47,370 2018 34,015 2019 20,533 2020 19,696 Thereafter 47,118 Total intangible assets subject to amortization 232,905 Indefinite-lived trade name 357 Other intangible assets, net $ 233,262 The changes in goodwill during the nine months ended September 30, 2015 and 2014 were as follows: (in thousands) 2015 2014 Beginning balance – January 1 $ 1,312,182 $ 1,255,704 Acquisitions 28,561 60,484 Adjustments (1) (3,601 ) 547 Currency translation (2,633 ) (2,981 ) Ending balance – September 30 $ 1,334,509 $ 1,313,754 (1) In accordance with the accounting for business combinations, the Company recorded adjustments to goodwill for the effect of changes in the provisional fair values of the assets acquired and liabilities assumed during the measurement period (up to one year from the acquisition date) as the Company obtained new information about facts and circumstances that existed as of the acquisition date that, if known, would have affected the measurement of the amounts recognized as of that date. During the first quarter of 2015 , the Company completed the annual impairment test for goodwill and indefinite-lived intangible assets and determined that these assets had not been impaired as of the test date, January 1, 2015 . The Company tested the previously unamortized trade name discussed above for impairment during the first quarter of 2015 and determined that its fair value exceeded its carrying value, so no impairment was recorded. No other events or circumstances changed during the nine months ended September 30, 2015 that would indicate that the fair values of the Company's reporting unit and indefinite-lived intangible asset are below their carrying amounts.

Fair Value Measurement

Fair Value Measurement	9 Months Ended
	Sep. 30, 2015
Fair Value Measurement	Fair Value Measurement The valuation hierarchy for disclosure of assets and liabilities reported at fair value prioritizes the inputs for such valuations into three broad levels: • Level 1: quoted prices (unadjusted) in active markets for identical assets or liabilities; • Level 2: quoted prices for similar assets and liabilities in active markets or inputs that are observable for the asset or liability, either directly or indirectly through market corroboration, for substantially the full term of the financial instrument; or • Level 3: unobservable inputs based on the Company's own assumptions used to measure assets and liabilities at fair value. A financial asset's or liability's classification within the hierarchy is determined based on the lowest level input that is significant to the fair value measurement. The following tables provide the assets and liabilities carried at fair value and measured on a recurring basis: Fair Value Measurements at Reporting Date Using: (in thousands) September 30, Quoted Prices in Active Markets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Assets Cash equivalents $ 353,107 $ 353,107 $ — $ — Short-term investments $ 684 $ — $ 684 $ — Liabilities Contingent consideration $ (1,377 ) $ — $ — $ (1,377 ) Fair Value Measurements at Reporting Date Using: (in thousands) December 31, 2014 Quoted Prices in Active Markets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Assets Cash equivalents $ 281,333 $ 281,333 $ — $ — Short-term investments $ 714 $ — $ 714 $ — Liabilities Contingent consideration $ (2,621 ) $ — $ — $ (2,621 ) The cash equivalents in the preceding tables represent money market mutual funds. The short-term investments in the preceding tables represent deposits held by certain foreign subsidiaries of the Company. The deposits have fixed interest rates with maturity dates ranging from three months to one year. The contingent consideration in the tables above represents potential future payments related to the EVEN - Evolutionary Engineering AG ("EVEN") acquisition in accordance with the 2013 merger agreement. The net present value calculations for the contingent consideration include significant unobservable inputs in the assumption that all remaining payments will be made, and, therefore, the liabilities were classified as Level 3 in the fair value hierarchy. The following tables present the changes in the Company’s Level 3 liabilities that are measured at fair value on a recurring basis during the three and nine months ended September 30, 2015 and 2014 : Fair Value Measurement Using Significant Unobservable Inputs (in thousands) Contingent Consideration Balance as of January 1, 2015 $ 2,621 Interest expense and foreign exchange activity included in earnings 122 Balance as of March 31, 2015 $ 2,743 Contingent payment (1,456 ) Interest expense and foreign exchange activity included in earnings 107 Balance as of June 30, 2015 $ 1,394 Interest expense and foreign exchange activity included in earnings (17 ) Balance as of September 30, 2015 $ 1,377 Fair Value Measurement Using Significant Unobservable Inputs (in thousands) Contingent Consideration Deferred Compensation Balance as of January 1, 2014 $ 7,389 $ 704 Contingent payment (1,578 ) — Interest expense and foreign exchange activity included in earnings 164 3 Balance as of March 31, 2014 $ 5,975 $ 707 Interest expense and foreign exchange activity included in earnings 87 4 Balance as of June 30, 2014 $ 6,062 $ 711 Contingent payments (3,288 ) (712 ) Interest expense and foreign exchange activity included in earnings (121 ) 1 Balance as of September 30, 2014 $ 2,653 $ — The carrying values of cash, accounts receivable, accounts payable, accrued expenses, other accrued liabilities and short-term obligations approximate their fair values because of their short-term nature.

Geographic Information

Geographic Information	9 Months Ended
	Sep. 30, 2015
Geographic Information	Geographic Information Revenue to external customers is attributed to individual countries based upon the location of the customer. Revenue by geographic area is as follows: Three Months Ended Nine Months Ended (in thousands) September 30, September 30, September 30, September 30, United States $ 93,374 $ 81,833 $ 262,215 $ 233,612 Japan 24,981 25,823 77,519 82,543 Germany 23,484 23,835 69,076 73,337 South Korea 12,758 14,180 39,909 39,661 France 11,626 13,870 35,782 43,596 Canada 3,254 3,246 9,882 9,735 Other European 36,341 38,966 106,899 114,396 Other international 32,022 32,247 89,824 84,766 Total revenue $ 237,840 $ 234,000 $ 691,106 $ 681,646 Property and equipment by geographic area is as follows: (in thousands) September 30, December 31, United States $ 44,677 $ 49,957 Europe 6,705 7,840 India 2,963 3,123 Other international 4,245 3,723 Total property and equipment $ 58,590 $ 64,643

Stock-Based Compensation

Stock-Based Compensation	9 Months Ended
	Sep. 30, 2015
Stock-Based Compensation	Stock-Based Compensation Total stock-based compensation expense and its net impact on basic and diluted earnings per share are as follows: Three Months Ended Nine Months Ended (in thousands, except per share data) September 30, September 30, September 30, September 30, Cost of sales: Software licenses $ 174 $ 490 $ 549 $ 1,289 Maintenance and service 530 549 1,432 1,587 Operating expenses: Selling, general and administrative 4,249 4,520 13,038 12,766 Research and development 3,917 4,394 10,712 11,941 Stock-based compensation expense before taxes 8,870 9,953 25,731 27,583 Related income tax benefits (2,725 ) (2,843 ) (8,454 ) (7,703 ) Stock-based compensation expense, net of taxes $ 6,145 $ 7,110 $ 17,277 $ 19,880 Net impact on earnings per share: Basic earnings per share $ (0.07 ) $ (0.08 ) $ (0.19 ) $ (0.22 ) Diluted earnings per share $ (0.07 ) $ (0.08 ) $ (0.19 ) $ (0.21 )

Stock Repurchase Program

Stock Repurchase Program	9 Months Ended
	Sep. 30, 2015
Stock Repurchase Program	Stock Repurchase Program Under the Company's stock repurchase program, the Company repurchased shares during the nine months ended September 30, 2015 and 2014 , as follows: Nine Months Ended (in thousands, except per share data) September 30, September 30, Number of shares repurchased 2,793 1,432 Average price paid per share $ 86.92 $ 75.87 Total cost $ 242,748 $ 108,613 In February 2015, the Company's Board of Directors increased the number of shares authorized for repurchase to a total of 5.0 million shares under the stock repurchase program. As of September 30, 2015 , 3.1 million shares remained available for repurchase under the program.

Contingencies and Commitments

Contingencies and Commitments	9 Months Ended
	Sep. 30, 2015
Contingencies and Commitments	Contingencies and Commitments The Company is subject to various investigations, claims and legal proceedings that arise in the ordinary course of business, including commercial disputes, labor and employment matters, tax audits, alleged infringement of intellectual property rights and other matters. In the opinion of the Company, the resolution of pending matters is not expected to have a material, adverse effect on the Company’s consolidated results of operations, cash flows or financial position. However, each of these matters is subject to various uncertainties and it is possible that an unfavorable resolution of one or more of these proceedings could materially affect the Company’s results of operations, cash flows or financial position. An Indian subsidiary of the Company received a formal inquiry after a service tax audit was held in 2011. The Company could incur tax charges and related liabilities, including those related to the service tax audit case, of approximately $6 million . The service tax issues raised in the Company’s notice are very similar to the case, M/s Microsoft Corporation (I) (P) Ltd. Vs Commissioner of Service Tax , New Delhi , wherein the Delhi Customs, Excise and Service Tax Appellate Tribunal (CESTAT) has passed a favorable ruling to Microsoft. The Company can provide no assurances on whether the Microsoft case’s favorable ruling will be challenged in higher courts or on the impact that the present Microsoft case’s decision will have on the Company’s audit case. The Company is uncertain as to when the service tax audit will be completed. The Company sells software licenses and services to its customers under proprietary software license agreements. Each license agreement contains the relevant terms of the contractual arrangement with the customer, and generally includes certain provisions for indemnifying the customer against losses, expenses and liabilities from damages that are incurred by or awarded against the customer in the event the Company’s software or services are found to infringe upon a patent, copyright or other proprietary right of a third party. To date, the Company has not had to reimburse any of its customers for any losses related to these indemnification provisions and no material claims asserted under these indemnification provisions are outstanding as of September 30, 2015 . For several reasons, including the lack of prior material indemnification claims, the Company cannot determine the maximum amount of potential future payments, if any, related to such indemnification provisions.

New Accounting Guidance

New Accounting Guidance	9 Months Ended
	Sep. 30, 2015
New Accounting Guidance	New Accounting Guidance Measurement-period adjustments related to business combinations: In September 2015, the Financial Accounting Standards Board (FASB) issued Accounting Standards Update No. 2015-16, Simplifying the Accounting for Measurement-Period Adjustments (ASU 2015-16). ASU 2015-16 requires adjustments to provisional amounts that are identified during the measurement period to be recognized in the period in which the adjustments are determined. The acquirer must record the effect on earnings of changes in depreciation, amortization or other income effects, if any, as a result of the change to the provisional amounts, calculated as if the accounting had been completed at the acquisition date. Prior guidance required the restatement of prior periods if the adjustments impacted those periods. The guidance was early adopted by the Company during the quarter ended September 30, 2015 and applied prospectively. The impact on the Company's financial position, results of operations and cash flows was not material. Revenue from contracts with customers: In May 2014, the FASB issued Accounting Standards Update No. 2014-09, Revenue from Contracts with Customers (Topic 606) (ASU 2014-09). ASU 2014-09 supersedes most current revenue recognition guidance, including industry-specific guidance. Previous guidance requires an entity to recognize revenue when persuasive evidence of an arrangement exists, delivery has occurred or services have been rendered, the seller's price to the buyer is fixed or determinable, and collectibility is reasonably assured. Under the new guidance, an entity is required to evaluate revenue recognition by identifying a contract with a customer, identifying the performance obligations in the contract, determining the transaction price, allocating the transaction price to the performance obligations in the contract and recognizing revenue when (or as) the entity satisfies a performance obligation. ASU 2015-14, Revenue from Contracts with Customers (Topic 606): Deferral of the Effective Date , delayed the effective date of ASU 2014-09 to annual periods beginning after December 15, 2017, including interim periods within that reporting period. Entities have the option of using a full retrospective, cumulative effect or modified approach to adopt ASU 2014-09. This update will impact the timing and amounts of revenue recognized. The Company is currently evaluating the effect that implementation of this update will have on its financial results upon adoption.

Accounting Policies (Policies)

Accounting Policies (Policies)	9 Months Ended
	Sep. 30, 2015
Basis of Presentation	Basis of Presentation The accompanying unaudited condensed consolidated financial statements have been prepared by ANSYS in accordance with accounting principles generally accepted in the United States for interim financial information for commercial and industrial companies and the instructions to the Quarterly Report on Form 10-Q and Rule 10-01 of Regulation S-X. Accordingly, the accompanying statements do not include all of the information and footnotes required by accounting principles generally accepted in the United States for complete financial statements. The accompanying condensed consolidated financial statements should be read in conjunction with the Company's audited consolidated financial statements (and notes thereto) included in the Company's Annual Report on Form 10-K for the year ended December 31, 2014 . The condensed consolidated December 31, 2014 balance sheet presented is derived from the audited December 31, 2014 balance sheet included in the most recent Annual Report on Form 10-K. In the opinion of management, all adjustments considered necessary for a fair presentation of the financial statements have been included, and all adjustments are of a normal and recurring nature. Operating results for the three and nine months ended September 30, 2015 are not necessarily indicative of the results that may be expected for any future period.
Cash and Cash Equivalents	Cash and Cash Equivalents Cash and cash equivalents consist primarily of highly liquid investments such as deposits held at major banks and money market mutual funds. Cash equivalents are carried at cost, which approximates fair value. The Company’s cash and cash equivalent balances comprise the following: September 30, 2015 December 31, 2014 (in thousands, except percentages) Amount % of Total Amount % of Total Cash accounts $ 423,132 54.5 $ 506,731 64.3 Money market mutual funds 353,107 45.5 281,333 35.7 Total $ 776,239 $ 788,064 The Company's money market mutual fund balances are held in various funds of a single issuer.

Accounting Policies (Tables)

Accounting Policies (Tables)	9 Months Ended
	Sep. 30, 2015
Cash and Cash Equivalents	The Company’s cash and cash equivalent balances comprise the following: September 30, 2015 December 31, 2014 (in thousands, except percentages) Amount % of Total Amount % of Total Cash accounts $ 423,132 54.5 $ 506,731 64.3 Money market mutual funds 353,107 45.5 281,333 35.7 Total $ 776,239 $ 788,064

Acquisitions (Tables)

Acquisitions (Tables) - SpaceClaim Corporation [Member]	9 Months Ended
	Sep. 30, 2015
Schedule Of Consideration Transferred Components	Fair Value of Consideration Transferred: (in thousands) Cash $ 84,892 ANSYS replacement stock options 68 Total consideration transferred at fair value $ 84,960
Schedule of Recognized Identifiable Assets Acquired and Liabilities Assumed	Recognized Amounts of Identifiable Assets Acquired and Liabilities Assumed: (in thousands) Cash $ 723 Accounts receivable and other tangible assets 1,857 Developed technology (10-year life) 15,800 Customer relationships (6-year life) 9,400 Trade name (6-year life) 1,300 Contract backlog (6-year life) 550 Non-compete agreement (2-year life) 300 Net deferred tax assets 9,288 Accounts payable and other liabilities (2,011 ) Deferred revenue (700 ) Total identifiable net assets $ 36,507 Goodwill $ 48,453

Other Receivables and Current22

Other Receivables and Current Assets (Tables)	9 Months Ended
	Sep. 30, 2015
Schedule of Other Receivables and Current Assets	The Company's other receivables and current assets comprise the following balances: (in thousands) September 30, December 31, Receivables related to unrecognized revenue $ 115,689 $ 152,830 Income taxes receivable, including overpayments and refunds 10,201 18,276 Prepaid expenses and other current assets 22,270 21,202 Total other receivables and current assets $ 148,160 $ 192,308

Earnings Per Share (Tables)

Earnings Per Share (Tables)	9 Months Ended
	Sep. 30, 2015
Details of Basic and Diluted EPS	The details of basic and diluted EPS are as follows: Three Months Ended Nine Months Ended (in thousands, except per share data) September 30, September 30, September 30, September 30, Net income $ 66,033 $ 65,479 $ 184,500 $ 185,057 Weighted average shares outstanding – basic 89,694 91,875 89,873 92,224 Dilutive effect of stock plans 1,899 2,030 1,947 2,173 Weighted average shares outstanding – diluted 91,593 93,905 91,820 94,397 Basic earnings per share $ 0.74 $ 0.71 $ 2.05 $ 2.01 Diluted earnings per share $ 0.72 $ 0.70 $ 2.01 $ 1.96 Anti-dilutive shares 204 237 221 877

Goodwill and Intangible Assets

Goodwill and Intangible Assets (Tables)	9 Months Ended
	Sep. 30, 2015
Intangible Assets and Estimated Useful Lives	The Company's intangible assets and estimated useful lives are classified as follows: September 30, 2015 December 31, 2014 (in thousands) Gross Carrying Amount Accumulated Amortization Gross Carrying Amount Accumulated Amortization Amortized intangible assets: Developed software and core technologies (3 – 11 years) $ 339,745 $ (245,039 ) $ 321,076 $ (227,298 ) Customer lists and contract backlog (5 – 15 years) 217,111 (133,903 ) 221,159 (121,380 ) Trade names (2 – 10 years) 127,999 (73,070 ) 114,432 (63,082 ) Non-compete agreement (2 years) 300 (238 ) 300 (52 ) Total $ 685,155 $ (452,250 ) $ 656,967 $ (411,812 ) Unamortized intangible assets: Trade names $ 357 $ 14,157
Estimated Future Amortization Expense for Intangible Assets	As of September 30, 2015 , estimated future amortization expense for the intangible assets reflected above is as follows: (in thousands) Remainder of 2015 $ 13,946 2016 50,227 2017 47,370 2018 34,015 2019 20,533 2020 19,696 Thereafter 47,118 Total intangible assets subject to amortization 232,905 Indefinite-lived trade name 357 Other intangible assets, net $ 233,262
Changes in Goodwill	The changes in goodwill during the nine months ended September 30, 2015 and 2014 were as follows: (in thousands) 2015 2014 Beginning balance – January 1 $ 1,312,182 $ 1,255,704 Acquisitions 28,561 60,484 Adjustments (1) (3,601 ) 547 Currency translation (2,633 ) (2,981 ) Ending balance – September 30 $ 1,334,509 $ 1,313,754

Fair Value Measurement (Tables)

Fair Value Measurement (Tables)	9 Months Ended
	Sep. 30, 2015
Fair Value of Assets and Liabilities Measured on Recurring Basis	The following tables provide the assets and liabilities carried at fair value and measured on a recurring basis: Fair Value Measurements at Reporting Date Using: (in thousands) September 30, Quoted Prices in Active Markets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Assets Cash equivalents $ 353,107 $ 353,107 $ — $ — Short-term investments $ 684 $ — $ 684 $ — Liabilities Contingent consideration $ (1,377 ) $ — $ — $ (1,377 ) Fair Value Measurements at Reporting Date Using: (in thousands) December 31, 2014 Quoted Prices in Active Markets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Assets Cash equivalents $ 281,333 $ 281,333 $ — $ — Short-term investments $ 714 $ — $ 714 $ — Liabilities Contingent consideration $ (2,621 ) $ — $ — $ (2,621 )
Changes in Level 3 Liabilities Measured at Fair Value on Recurring Basis Using Significant Unobservable Inputs	The following tables present the changes in the Company’s Level 3 liabilities that are measured at fair value on a recurring basis during the three and nine months ended September 30, 2015 and 2014 : Fair Value Measurement Using Significant Unobservable Inputs (in thousands) Contingent Consideration Balance as of January 1, 2015 $ 2,621 Interest expense and foreign exchange activity included in earnings 122 Balance as of March 31, 2015 $ 2,743 Contingent payment (1,456 ) Interest expense and foreign exchange activity included in earnings 107 Balance as of June 30, 2015 $ 1,394 Interest expense and foreign exchange activity included in earnings (17 ) Balance as of September 30, 2015 $ 1,377 Fair Value Measurement Using Significant Unobservable Inputs (in thousands) Contingent Consideration Deferred Compensation Balance as of January 1, 2014 $ 7,389 $ 704 Contingent payment (1,578 ) — Interest expense and foreign exchange activity included in earnings 164 3 Balance as of March 31, 2014 $ 5,975 $ 707 Interest expense and foreign exchange activity included in earnings 87 4 Balance as of June 30, 2014 $ 6,062 $ 711 Contingent payments (3,288 ) (712 ) Interest expense and foreign exchange activity included in earnings (121 ) 1 Balance as of September 30, 2014 $ 2,653 $ —

Geographic Information (Tables)

Geographic Information (Tables)	9 Months Ended
	Sep. 30, 2015
Revenue by Geographic Area	Revenue by geographic area is as follows: Three Months Ended Nine Months Ended (in thousands) September 30, September 30, September 30, September 30, United States $ 93,374 $ 81,833 $ 262,215 $ 233,612 Japan 24,981 25,823 77,519 82,543 Germany 23,484 23,835 69,076 73,337 South Korea 12,758 14,180 39,909 39,661 France 11,626 13,870 35,782 43,596 Canada 3,254 3,246 9,882 9,735 Other European 36,341 38,966 106,899 114,396 Other international 32,022 32,247 89,824 84,766 Total revenue $ 237,840 $ 234,000 $ 691,106 $ 681,646
Property and Equipment by Geographic Area	Property and equipment by geographic area is as follows: (in thousands) September 30, December 31, United States $ 44,677 $ 49,957 Europe 6,705 7,840 India 2,963 3,123 Other international 4,245 3,723 Total property and equipment $ 58,590 $ 64,643

Stock-Based Compensation (Table

Stock-Based Compensation (Tables)	9 Months Ended
	Sep. 30, 2015
Stock-Based Compensation Expense and Its Net Impact on Basic and Diluted Earnings Per Share	Total stock-based compensation expense and its net impact on basic and diluted earnings per share are as follows: Three Months Ended Nine Months Ended (in thousands, except per share data) September 30, September 30, September 30, September 30, Cost of sales: Software licenses $ 174 $ 490 $ 549 $ 1,289 Maintenance and service 530 549 1,432 1,587 Operating expenses: Selling, general and administrative 4,249 4,520 13,038 12,766 Research and development 3,917 4,394 10,712 11,941 Stock-based compensation expense before taxes 8,870 9,953 25,731 27,583 Related income tax benefits (2,725 ) (2,843 ) (8,454 ) (7,703 ) Stock-based compensation expense, net of taxes $ 6,145 $ 7,110 $ 17,277 $ 19,880 Net impact on earnings per share: Basic earnings per share $ (0.07 ) $ (0.08 ) $ (0.19 ) $ (0.22 ) Diluted earnings per share $ (0.07 ) $ (0.08 ) $ (0.19 ) $ (0.21 )

Stock Repurchase Program (Table

Stock Repurchase Program (Tables)	9 Months Ended
	Sep. 30, 2015
Stock Repurchase Program	Under the Company's stock repurchase program, the Company repurchased shares during the nine months ended September 30, 2015 and 2014 , as follows: Nine Months Ended (in thousands, except per share data) September 30, September 30, Number of shares repurchased 2,793 1,432 Average price paid per share $ 86.92 $ 75.87 Total cost $ 242,748 $ 108,613

Organization - Additional Infor

Organization - Additional Information (Detail)	9 Months Ended
	Sep. 30, 2015Segment
Segment Reporting, Disclosure of Entity's Reportable Segments [Abstract]
Number of operating segments	1

Cash and Cash Equivalents (Deta

Cash and Cash Equivalents (Detail) - USD ($) $ in Thousands	Sep. 30, 2015	Dec. 31, 2014	Sep. 30, 2014	Dec. 31, 2013
Cash and Cash Equivalents [Line Items]
Cash accounts, Amount	$ 423,132	$ 506,731
Money market mutual funds, Amount	353,107	281,333
Total	$ 776,239	$ 788,064	$ 816,805	$ 742,486
Cash accounts, % of Total	54.50%	64.30%
Money market mutual funds, % of Total	45.50%	35.70%

Acquisition - Additional Inform

Acquisition - Additional Information (Detail) - USD ($) $ in Thousands	Apr. 30, 2014	Jan. 03, 2014	Sep. 30, 2015	Sep. 30, 2015	Dec. 31, 2014	Sep. 30, 2014	Dec. 31, 2013
Business Acquisition [Line Items]
Goodwill			$ 1,334,509	$ 1,334,509	$ 1,312,182	$ 1,313,754	$ 1,255,704
2015 Acquisitions [Member]
Business Acquisition [Line Items]
Total consideration transferred at fair value				44,400
Finite-lived intangibles			19,100	19,100
Goodwill			28,500	28,500
Business combination, historical carrying value of acquired deferred revenue			900	900
Business acquisition write down of deferred revenue impact on reported revenue			236	588
Business acquisition write down of deferred revenue expected impact on revenue next fiscal quarter			200	200
Business acquisition write down of deferred revenue expected impact on revenue next fiscal year			102	102
SpaceClaim Corporation [Member]
Business Acquisition [Line Items]
Total consideration transferred at fair value	$ 84,960
Goodwill			48,453	48,453
Business combination, historical carrying value of acquired deferred revenue	$ 3,300
Business acquisition write down of deferred revenue impact on reported revenue			100	603
Goodwill, period increase (decrease)				(4,800)
Deferred revenue			700	700
Reaction Design [Member]
Business Acquisition [Line Items]
Total consideration transferred at fair value		$ 19,100
Finite-lived intangibles			7,000	7,000
Goodwill			$ 9,200	9,200
Business combination, historical carrying value of acquired deferred revenue		$ 2,300
Business acquisition write down of deferred revenue impact on reported revenue				174
Goodwill, period increase (decrease)				1,900
Noncontrolling interest, period increase (decrease)				$ (600)
Minimum [Member] | 2015 Acquisitions [Member]
Business Acquisition [Line Items]
Finite-lived intangible asset, useful life				5 years
Minimum [Member] | Reaction Design [Member]
Business Acquisition [Line Items]
Finite-lived intangible asset, useful life				2 years
Maximum [Member] | 2015 Acquisitions [Member]
Business Acquisition [Line Items]
Finite-lived intangible asset, useful life				10 years
Maximum [Member] | Reaction Design [Member]
Business Acquisition [Line Items]
Finite-lived intangible asset, useful life				11 years

Acquisitions Fair Value of Cons

Acquisitions Fair Value of Consideration Transferred (Details) - SpaceClaim Corporation [Member] $ in Thousands	Apr. 30, 2014USD ($)
Business Acquisition [Line Items]
Cash paid	$ 84,892
ANSYS replacement stock options	68
Total consideration transferred at fair value	$ 84,960

Recognized Amounts of Identifia

Recognized Amounts of Identifiable Assets Acquired and Liabilities Assumed (Detail) - USD ($) $ in Thousands	Sep. 30, 2015	Dec. 31, 2014	Sep. 30, 2014	Dec. 31, 2013
Business Combination, Separately Recognized Transactions [Line Items]
Goodwill	$ 1,334,509	$ 1,312,182	$ 1,313,754	$ 1,255,704
SpaceClaim Corporation [Member]
Business Combination, Separately Recognized Transactions [Line Items]
Cash	723
Accounts receivable and other tangible assets	1,857
Net deferred tax assets	9,288
Accounts payable and other liabilities	(2,011)
Deferred revenue	(700)
Total identifiable net assets	36,507
Goodwill	48,453
Developed Technology | SpaceClaim Corporation [Member]
Business Combination, Separately Recognized Transactions [Line Items]
Finite-lived intangibles	15,800
Customer Relationships | SpaceClaim Corporation [Member]
Business Combination, Separately Recognized Transactions [Line Items]
Finite-lived intangibles	9,400
Trade Names | SpaceClaim Corporation [Member]
Business Combination, Separately Recognized Transactions [Line Items]
Finite-lived intangibles	1,300
Contract Backlog | SpaceClaim Corporation [Member]
Business Combination, Separately Recognized Transactions [Line Items]
Finite-lived intangibles	550
Non-Compete Agreement | SpaceClaim Corporation [Member]
Business Combination, Separately Recognized Transactions [Line Items]
Finite-lived intangibles	$ 300

Recognized Amounts of Identif34

Recognized Amounts of Identifiable Assets Acquired and Liabilities Assumed Estimated Useful Lives (Detail) - SpaceClaim Corporation [Member]	9 Months Ended
	Sep. 30, 2015
Developed Technology
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible asset, useful life	10 years
Customer Relationships
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible asset, useful life	6 years
Trade Names
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible asset, useful life	6 years
Contract Backlog
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible asset, useful life	6 years
Non-Compete Agreement
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible asset, useful life	2 years

Other Receivables and Current35

Other Receivables and Current Assets - Additional Information (Detail) - USD ($) $ in Thousands	Sep. 30, 2015	Dec. 31, 2014
Other receivables and current assets	$ 148,160	$ 192,308
Deferred Accounts Receivable Current Portion Of Annual Lease Licenses And Software Maintenance [Member]
Other receivables and current assets	115,689	152,830
Taxes Receivable Related To Overpayments And Refunds [Member]
Other receivables and current assets	10,201	18,276
Prepaid Expenses and Other Current Assets [Member]
Other receivables and current assets	$ 22,270	$ 21,202

Details of Basic and Diluted EP

Details of Basic and Diluted EPS (Detail) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Earnings Per Share [Line Items]
Net income	$ 66,033	$ 65,479	$ 184,500	$ 185,057
Weighted average shares outstanding - basic	89,694	91,875	89,873	92,224
Dilutive effect of stock plans	1,899	2,030	1,947	2,173
Weighted average shares outstanding - diluted	91,593	93,905	91,820	94,397
Basic earnings per share	$ 0.74	$ 0.71	$ 2.05	$ 2.01
Diluted earnings per share	$ 0.72	$ 0.70	$ 2.01	$ 1.96
Anti-dilutive options	204	237	221	877

Intangible Assets (Detail)

Intangible Assets (Detail) - USD ($) $ in Thousands	Sep. 30, 2015	Dec. 31, 2014
Intangible Assets [Line Items]
Amortized intangible assets, gross carrying amount	$ 685,155	$ 656,967
Amortized intangible assets, accumulated amortization	(452,250)	(411,812)
Indefinite-lived intangible assets (excluding goodwill)	357
Developed Software and Core Technologies
Intangible Assets [Line Items]
Amortized intangible assets, gross carrying amount	339,745	321,076
Amortized intangible assets, accumulated amortization	(245,039)	(227,298)
Customer Lists and Contract Backlog
Intangible Assets [Line Items]
Amortized intangible assets, gross carrying amount	217,111	221,159
Amortized intangible assets, accumulated amortization	(133,903)	(121,380)
Trade Names
Intangible Assets [Line Items]
Amortized intangible assets, gross carrying amount	127,999	114,432
Amortized intangible assets, accumulated amortization	(73,070)	(63,082)
Non-Compete Agreement
Intangible Assets [Line Items]
Amortized intangible assets, gross carrying amount	300	300
Amortized intangible assets, accumulated amortization	(238)	(52)
Trade Names
Intangible Assets [Line Items]
Indefinite-lived intangible assets (excluding goodwill)	$ 357	$ 14,157

Estimated Useful Lives (Detail)

Estimated Useful Lives (Detail)	9 Months Ended
	Sep. 30, 2015
Minimum [Member] | Developed Software and Core Technologies
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible asset, useful life	3 years
Minimum [Member] | Customer Lists and Contract Backlog
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible asset, useful life	5 years
Minimum [Member] | Trade Names
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible asset, useful life	2 years
Minimum [Member] | Non-Compete Agreement
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible asset, useful life	2 years
Maximum [Member] | Developed Software and Core Technologies
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible asset, useful life	11 years
Maximum [Member] | Customer Lists and Contract Backlog
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible asset, useful life	15 years
Maximum [Member] | Trade Names
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible asset, useful life	10 years
Maximum [Member] | Non-Compete Agreement
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible asset, useful life	2 years

Goodwill and Intangible Asset39

Goodwill and Intangible Assets - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Finite-Lived Intangible Assets [Line Items]
Amortization	$ 14,743	$ 16,270	$ 43,955	$ 45,572

Estimated Future Amortization E

Estimated Future Amortization Expense for Intangible Assets (Detail) - USD ($) $ in Thousands	Sep. 30, 2015	Dec. 31, 2014
Schedule of Estimated Amortization Expense for Intangible Assets [Line Items]
Remainder of 2015	$ 13,946
2,016	50,227
2,017	47,370
2,018	34,015
2,019	20,533
2,020	19,696
Thereafter	47,118
Total intangible assets subject to amortization	232,905
Indefinite-lived intangible assets (excluding goodwill)	357
Other intangible assets, net	$ 233,262	$ 259,312

Changes in Goodwill (Detail)

Changes in Goodwill (Detail) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014
Goodwill [Line Items]
Beginning balance	$ 1,312,182	$ 1,255,704
Acquisitions	28,561	60,484
Adjustments	(3,601)	547
Currency translation	(2,633)	(2,981)
Ending balance	$ 1,334,509	$ 1,313,754

Fair Value of Assets and Liabil

Fair Value of Assets and Liabilities Measured on Recurring Basis (Detail) - USD ($) $ in Thousands	Sep. 30, 2015	Dec. 31, 2014
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash equivalents	$ 353,107	$ 281,333
Short-term investments	684	714
Contingent consideration	(1,377)	(2,621)
Quoted Prices in Active Markets (Level 1)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash equivalents	353,107	281,333
Short-term investments	0	0
Contingent consideration	0	0
Significant Other Observable Inputs (Level 2)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash equivalents	0	0
Short-term investments	684	714
Contingent consideration	0	0
Significant Unobservable Inputs (Level 3)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash equivalents	0	0
Short-term investments	0	0
Contingent consideration	$ (1,377)	$ (2,621)

Fair Value Measurement - Additi

Fair Value Measurement - Additional Information (Detail)	9 Months Ended
	Sep. 30, 2015
Minimum [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Short-term investments maturity	3 months
Maximum [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Short-term investments maturity	1 year

Changes in Level 3 Liabilities

Changes in Level 3 Liabilities Measured at Fair Value on Recurring Basis Using Significant Unobservable Inputs (Detail) - Significant Unobservable Inputs (Level 3) - USD ($) $ in Thousands	3 Months Ended
	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014
Contingent Consideration
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Beginning balance	$ 1,394	$ 2,743	$ 2,621	$ 6,062	$ 5,975	$ 7,389
Contingent payments		(1,456)		(3,288)		(1,578)
Interest expense and foreign exchange activity included in earnings	(17)	107	122	(121)	87	164
Ending balance	$ 1,377	$ 1,394	$ 2,743	2,653	6,062	5,975
Deferred Compensation
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Beginning balance				711	707	704
Contingent payments				(712)		0
Interest expense and foreign exchange activity included in earnings				1	4	3
Ending balance				$ 0	$ 711	$ 707

Revenue by Geographic Area (Det

Revenue by Geographic Area (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Revenues from External Customers and Long-Lived Assets [Line Items]
Total revenue	$ 237,840	$ 234,000	$ 691,106	$ 681,646
UNITED STATES
Revenues from External Customers and Long-Lived Assets [Line Items]
Total revenue	93,374	81,833	262,215	233,612
JAPAN
Revenues from External Customers and Long-Lived Assets [Line Items]
Total revenue	24,981	25,823	77,519	82,543
GERMANY
Revenues from External Customers and Long-Lived Assets [Line Items]
Total revenue	23,484	23,835	69,076	73,337
SOUTH KOREA
Revenues from External Customers and Long-Lived Assets [Line Items]
Total revenue	12,758	14,180	39,909	39,661
FRANCE
Revenues from External Customers and Long-Lived Assets [Line Items]
Total revenue	11,626	13,870	35,782	43,596
CANADA
Revenues from External Customers and Long-Lived Assets [Line Items]
Total revenue	3,254	3,246	9,882	9,735
Other European
Revenues from External Customers and Long-Lived Assets [Line Items]
Total revenue	36,341	38,966	106,899	114,396
Other international
Revenues from External Customers and Long-Lived Assets [Line Items]
Total revenue	$ 32,022	$ 32,247	$ 89,824	$ 84,766

Property and Equipment by Geogr

Property and Equipment by Geographic Area (Detail) - USD ($) $ in Thousands	Sep. 30, 2015	Dec. 31, 2014
Revenues from External Customers and Long-Lived Assets [Line Items]
Total property and equipment	$ 58,590	$ 64,643
UNITED STATES
Revenues from External Customers and Long-Lived Assets [Line Items]
Total property and equipment	44,677	49,957
Europe
Revenues from External Customers and Long-Lived Assets [Line Items]
Total property and equipment	6,705	7,840
INDIA
Revenues from External Customers and Long-Lived Assets [Line Items]
Total property and equipment	2,963	3,123
Other international
Revenues from External Customers and Long-Lived Assets [Line Items]
Total property and equipment	$ 4,245	$ 3,723

Stock-Based Compensation Expens

Stock-Based Compensation Expense and Its Net Impact on Basic and Diluted Earnings Per Share (Detail) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Employee Service Share-Based Compensation, Allocation of Recognized Period Costs [Line Items]
Stock-based compensation expense before taxes	$ 8,870	$ 9,953	$ 25,731	$ 27,583
Related income tax benefits	(2,725)	(2,843)	(8,454)	(7,703)
Stock-based compensation expense, net of taxes	$ 6,145	$ 7,110	$ 17,277	$ 19,880
Basic earnings per share	$ (0.07)	$ (0.08)	$ (0.19)	$ (0.22)
Diluted earnings per share	$ (0.07)	$ (0.08)	$ (0.19)	$ (0.21)
Software Licenses
Employee Service Share-Based Compensation, Allocation of Recognized Period Costs [Line Items]
Stock-based compensation expense before taxes	$ 174	$ 490	$ 549	$ 1,289
Maintenance and Service
Employee Service Share-Based Compensation, Allocation of Recognized Period Costs [Line Items]
Stock-based compensation expense before taxes	530	549	1,432	1,587
Selling, General and Administrative
Employee Service Share-Based Compensation, Allocation of Recognized Period Costs [Line Items]
Stock-based compensation expense before taxes	4,249	4,520	13,038	12,766
Research and Development
Employee Service Share-Based Compensation, Allocation of Recognized Period Costs [Line Items]
Stock-based compensation expense before taxes	$ 3,917	$ 4,394	$ 10,712	$ 11,941

Stock Repurchase Program - Addi

Stock Repurchase Program - Additional Information (Detail) - USD ($) $ / shares in Units, $ in Thousands	9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014
Equity, Class of Treasury Stock [Line Items]
Number of shares repurchased	2,792,911	1,431,503
Average price paid per share	$ 86.92	$ 75.87
Total cost	$ 242,748	$ 108,613
Stock repurchase program, repurchase authorization	5,000,000
Stock repurchase program, remaining number of shares authorized to be repurchased	3,137,219

Contingencies and Commitments -

Contingencies and Commitments - Additional Information (Detail) $ in Millions	Sep. 30, 2015USD ($)
Loss Contingencies [Line Items]
Loss contingency, estimate of possible loss	$ 6