0000001 - Document - COVER link:presentationLink link:calculationLink link:definitionLink 9952151 - Statement - CONDENSED CONSOLIDATED BALANCE SHEETS link:presentationLink link:calculationLink link:definitionLink 9952152 - Statement - CONDENSED CONSOLIDATED BALANCE SHEETS (PARENTHETICAL) link:presentationLink link:calculationLink link:definitionLink 9952153 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF INCOME link:presentationLink link:calculationLink link:definitionLink 9952154 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF INCOME (CALCULATION) link:presentationLink link:calculationLink link:definitionLink 9952155 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME link:presentationLink link:calculationLink link:definitionLink 9952156 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (PARENTHETICAL) link:presentationLink link:calculationLink link:definitionLink 9952157 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS’ EQUITY link:presentationLink link:calculationLink link:definitionLink 9952158 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS link:presentationLink link:calculationLink link:definitionLink 9952159 - Disclosure - Description of Business link:presentationLink link:calculationLink link:definitionLink 9952160 - Disclosure - Summary of Significant Accounting Policies and Basis of Presentation link:presentationLink link:calculationLink link:definitionLink 9952161 - Disclosure - Discontinued Operations link:presentationLink link:calculationLink link:definitionLink 9952162 - Disclosure - Acquisition of Ansys link:presentationLink link:calculationLink link:definitionLink 9952163 - Disclosure - Revenue link:presentationLink link:calculationLink link:definitionLink 9952164 - Disclosure - Goodwill and Intangible Assets link:presentationLink link:calculationLink link:definitionLink 9952165 - Disclosure - Balance Sheet Components link:presentationLink link:calculationLink link:definitionLink 9952166 - Disclosure - Financial Assets and Liabilities link:presentationLink link:calculationLink link:definitionLink 9952167 - Disclosure - Fair Value Measurements link:presentationLink link:calculationLink link:definitionLink 9952168 - Disclosure - Restructuring Charges link:presentationLink link:calculationLink link:definitionLink 9952169 - Disclosure - Senior Notes, Bridge Commitment Letter, Term Loan and Revolving Credit Facilities link:presentationLink link:calculationLink link:definitionLink 9952170 - Disclosure - Leases link:presentationLink link:calculationLink link:definitionLink 9952171 - Disclosure - Accumulated Other Comprehensive Income (Loss) link:presentationLink link:calculationLink link:definitionLink 9952172 - Disclosure - Stock Repurchase Program link:presentationLink link:calculationLink link:definitionLink 9952173 - Disclosure - Stock-Based Compensation link:presentationLink link:calculationLink link:definitionLink 9952174 - Disclosure - Net Income (Loss) Per Share link:presentationLink link:calculationLink link:definitionLink 9952175 - Disclosure - Segment Disclosure link:presentationLink link:calculationLink link:definitionLink 9952176 - Disclosure - Other Income (Expense), Net link:presentationLink link:calculationLink link:definitionLink 9952177 - Disclosure - Income Taxes link:presentationLink link:calculationLink link:definitionLink 9952178 - Disclosure - Contingencies link:presentationLink link:calculationLink link:definitionLink 9955511 - Disclosure - Summary of Significant Accounting Policies and Basis of Presentation (Policies) link:presentationLink link:calculationLink link:definitionLink 9955512 - Disclosure - Acquisition of Ansys (Tables) link:presentationLink link:calculationLink link:definitionLink 9955513 - Disclosure - Revenue (Tables) link:presentationLink link:calculationLink link:definitionLink 9955514 - Disclosure - Goodwill and Intangible Assets (Tables) link:presentationLink link:calculationLink link:definitionLink 9955515 - Disclosure - Balance Sheet Components (Tables) link:presentationLink link:calculationLink link:definitionLink 9955516 - Disclosure - Financial Assets and Liabilities (Tables) link:presentationLink link:calculationLink link:definitionLink 9955517 - Disclosure - Fair Value Measurements (Tables) link:presentationLink link:calculationLink link:definitionLink 9955518 - Disclosure - Senior Notes, Bridge Commitment Letter, Term Loan and Revolving Credit Facilities (Tables) link:presentationLink link:calculationLink link:definitionLink 9955519 - Disclosure - Leases (Tables) link:presentationLink link:calculationLink link:definitionLink 9955520 - Disclosure - Accumulated Other Comprehensive Income (Loss) (Tables) link:presentationLink link:calculationLink link:definitionLink 9955521 - Disclosure - Stock Repurchase Program (Tables) link:presentationLink link:calculationLink link:definitionLink 9955522 - Disclosure - Stock-Based Compensation (Tables) link:presentationLink link:calculationLink link:definitionLink 9955523 - Disclosure - Net Income (Loss) Per Share (Tables) link:presentationLink link:calculationLink link:definitionLink 9955524 - Disclosure - Segment Disclosure (Tables) link:presentationLink link:calculationLink link:definitionLink 9955525 - Disclosure - Other Income (Expense), Net (Tables) link:presentationLink link:calculationLink link:definitionLink 9955526 - Disclosure - Income Taxes (Tables) link:presentationLink link:calculationLink link:definitionLink 9955527 - Disclosure - Summary of Significant Accounting Policies and Basis of Presentation (Details) link:presentationLink link:calculationLink link:definitionLink 9955528 - Disclosure - Discontinued Operations (Details) link:presentationLink link:calculationLink link:definitionLink 9955529 - Disclosure - Acquisition of Ansys - Additional Information (Details) link:presentationLink link:calculationLink link:definitionLink 9955530 - Disclosure - Acquisition of Ansys - Schedule of Unaudited Pro Forma Information (Details) link:presentationLink link:calculationLink link:definitionLink 9955531 - Disclosure - Revenue - Schedule of Disaggregation of Revenue (Details) link:presentationLink link:calculationLink link:definitionLink 9955532 - Disclosure - Revenue - Schedule of Contract Assets and Liabilities (Details) link:presentationLink link:calculationLink link:definitionLink 9955533 - Disclosure - Revenue - Additional Information (Details) link:presentationLink link:calculationLink link:definitionLink 9955533 - Disclosure - Revenue - Additional Information (Details) link:presentationLink link:calculationLink link:definitionLink 9955534 - Disclosure - Goodwill and Intangible Assets - Schedule of Goodwill (Details) link:presentationLink link:calculationLink link:definitionLink 9955535 - Disclosure - Goodwill and Intangible Assets - Schedule of Intangible Assets (Details) link:presentationLink link:calculationLink link:definitionLink 9955536 - Disclosure - Goodwill and Intangible Assets - Schedule of Amortization Expense Related to Intangible Assets (Details) link:presentationLink link:calculationLink link:definitionLink 9955537 - Disclosure - Goodwill and Intangible Assets - Schedule of Estimated Future Amortization of Intangible Assets (Details) link:presentationLink link:calculationLink link:definitionLink 9955538 - Disclosure - Balance Sheet Components - Schedule of Balance Sheets Components (Details) link:presentationLink link:calculationLink link:definitionLink 9955539 - Disclosure - Balance Sheet Components - Schedule of Assets and Liabilities Classified as Held for Sale (Details) link:presentationLink link:calculationLink link:definitionLink 9955540 - Disclosure - Financial Assets and Liabilities - Schedule of Cash Equivalents and Short-Term Investments (Details) link:presentationLink link:calculationLink link:definitionLink 9955541 - Disclosure - Financial Assets and Liabilities - Schedule of Maturity for Short-Term Available for Sale Securities (Details) link:presentationLink link:calculationLink link:definitionLink 9955542 - Disclosure - Financial Assets and Liabilities - Schedule of Cash, Cash Equivalents and Restricted Cash (Details) link:presentationLink link:calculationLink link:definitionLink 9955543 - Disclosure - Financial Assets and Liabilities - Additional Information (Details) link:presentationLink link:calculationLink link:definitionLink 9955544 - Disclosure - Financial Assets and Liabilities - Schedule of Effects on Changes in Fair Values of Non-Designated Foreign Currency Forward Contracts (Details) link:presentationLink link:calculationLink link:definitionLink 9955545 - Disclosure - Financial Assets and Liabilities - Schedule of Notional Amounts of Foreign Currency Derivative Instruments (Details) link:presentationLink link:calculationLink link:definitionLink 9955546 - Disclosure - Financial Assets and Liabilities - Schedule of Fair Values of Foreign Currency Derivative Instrument Designated and Non-Designated as Hedging Instruments in Balance Sheet (Details) link:presentationLink link:calculationLink link:definitionLink 9955547 - Disclosure - Financial Assets and Liabilities - Schedule of Location of the Amounts of Gains and Losses on Derivative Instrument Fair Values for Designated Hedging Instruments, Net of Tax (Details) link:presentationLink link:calculationLink link:definitionLink 9955548 - Disclosure - Fair Value Measurements (Details) link:presentationLink link:calculationLink link:definitionLink 9955549 - Disclosure - Restructuring Charges (Details) link:presentationLink link:calculationLink link:definitionLink 9955550 - Disclosure - Senior Notes, Bridge Commitment Letter, Term Loan and Revolving Credit Facilities - Schedule of Borrowings (Details) link:presentationLink link:calculationLink link:definitionLink 9955550 - Disclosure - Senior Notes, Bridge Commitment Letter, Term Loan and Revolving Credit Facilities - Schedule of Borrowings (Details) link:presentationLink link:calculationLink link:definitionLink 9955551 - Disclosure - Senior Notes, Bridge Commitment Letter, Term Loan and Revolving Credit Facilities - Additional Information (Details) link:presentationLink link:calculationLink link:definitionLink 9955552 - Disclosure - Senior Notes, Bridge Commitment Letter, Term Loan and Revolving Credit Facilities - Schedule of Future Principal Payments of Debt (Details) link:presentationLink link:calculationLink link:definitionLink 9955553 - Disclosure - Leases - Additional Information (Details) link:presentationLink link:calculationLink link:definitionLink 9955554 - Disclosure - Leases - Schedule of Components of Lease Expense (Details) link:presentationLink link:calculationLink link:definitionLink 9955555 - Disclosure - Leases - Schedule of Supplemental Cash Flow Information (Details) link:presentationLink link:calculationLink link:definitionLink 9955556 - Disclosure - Leases - Schedule of Lease Term and Discount Rate Information (Details) link:presentationLink link:calculationLink link:definitionLink 9955557 - Disclosure - Leases - Schedule of Future Minimum Payments (Details) link:presentationLink link:calculationLink link:definitionLink 9955557 - Disclosure - Leases - Schedule of Future Minimum Payments (Details) link:presentationLink link:calculationLink link:definitionLink 9955558 - Disclosure - Leases - Schedule of Sublease Income from Facilities Under Operating Leases (Details) link:presentationLink link:calculationLink link:definitionLink 9955559 - Disclosure - Accumulated Other Comprehensive Income (Loss) - Schedule of Components of Accumulated Other Comprehensive Income (Loss) (Details) link:presentationLink link:calculationLink link:definitionLink 9955560 - Disclosure - Accumulated Other Comprehensive Income (Loss) - Schedule of Effect of Amounts Reclassified out of Each Component of Accumulated Other Comprehensive Income (Loss) into Net Income (Details) link:presentationLink link:calculationLink link:definitionLink 9955561 - Disclosure - Stock Repurchase Program - Additional Information (Details) link:presentationLink link:calculationLink link:definitionLink 9955562 - Disclosure - Stock Repurchase Program - Schedule of Reissuance Activities of Treasury Stock (Details) link:presentationLink link:calculationLink link:definitionLink 9955563 - Disclosure - Stock-Based Compensation - Schedule of Stock Compensation Expense (Details) link:presentationLink link:calculationLink link:definitionLink 9955564 - Disclosure - Stock-Based Compensation - Schedule of Share-Based Payment Award, Restricted Stock Units, Valuation Assumptions (Details) link:presentationLink link:calculationLink link:definitionLink 9955565 - Disclosure - Stock-Based Compensation - Additional Information (Details) link:presentationLink link:calculationLink link:definitionLink 9955566 - Disclosure - Stock-Based Compensation - Schedule of Intrinsic Value of Equity Awards Exercised (Details) link:presentationLink link:calculationLink link:definitionLink 9955567 - Disclosure - Net Income (Loss) Per Share - Schedule of Reconciliation of Weighted-Average Common Shares Used to Calculate Net Income Per Share (Details) link:presentationLink link:calculationLink link:definitionLink 9955568 - Disclosure - Net Income (Loss) Per Share - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955569 - Disclosure - Segment Disclosure - Additional information (Details) link:presentationLink link:calculationLink link:definitionLink 9955570 - Disclosure - Segment Disclosure - Schedule of Segment Reporting Information (Details) link:presentationLink link:calculationLink link:definitionLink 9955571 - Disclosure - Segment Disclosure - Schedule of Reconciliation of Operating Income from Segments to Consolidation (Details) link:presentationLink link:calculationLink link:definitionLink 9955572 - Disclosure - Segment Disclosure - Schedule of Revenues Related to Operations by Geographic Areas (Details) link:presentationLink link:calculationLink link:definitionLink 9955573 - Disclosure - Other Income (Expense), Net (Details) link:presentationLink link:calculationLink link:definitionLink 9955574 - Disclosure - Income Taxes - Schedule of Provision for Income Taxes and Effective Tax Rates (Details) link:presentationLink link:calculationLink link:definitionLink 9955575 - Disclosure - Income Taxes - Additional Information (Details) link:presentationLink link:calculationLink link:definitionLink