0000001 - Document - Cover link:presentationLink link:calculationLink link:definitionLink 0000002 - Document - Audit Information link:presentationLink link:calculationLink link:definitionLink 9952151 - Statement - CONSOLIDATED BALANCE SHEETS link:presentationLink link:calculationLink link:definitionLink 9952152 - Statement - CONSOLIDATED BALANCE SHEETS (Parenthetical) link:presentationLink link:calculationLink link:definitionLink 9952153 - Statement - CONSOLIDATED STATEMENTS OF OPERATIONS link:presentationLink link:calculationLink link:definitionLink 9952154 - Statement - CONSOLIDATED STATEMENTS OF COMPREHENSIVE (LOSS) INCOME link:presentationLink link:calculationLink link:definitionLink 9952155 - Statement - CONSOLIDATED STATEMENTS OF STOCKHOLDERS’ EQUITY link:presentationLink link:calculationLink link:definitionLink 9952156 - Statement - CONSOLIDATED STATEMENTS OF CASH FLOWS link:presentationLink link:calculationLink link:definitionLink 9952157 - Disclosure - Description of Business link:presentationLink link:calculationLink link:definitionLink 9952158 - Disclosure - Summary of Significant Accounting Policies link:presentationLink link:calculationLink link:definitionLink 9952159 - Disclosure - Revenue link:presentationLink link:calculationLink link:definitionLink 9952160 - Disclosure - Divestitures and Discontinued Operations link:presentationLink link:calculationLink link:definitionLink 9952161 - Disclosure - Accounts Receivable Securitization Facility link:presentationLink link:calculationLink link:definitionLink 9952162 - Disclosure - Allowance for Credit Losses link:presentationLink link:calculationLink link:definitionLink 9952163 - Disclosure - Fair Value Measurements link:presentationLink link:calculationLink link:definitionLink 9952164 - Disclosure - Note Receivable link:presentationLink link:calculationLink link:definitionLink 9952165 - Disclosure - Property and Equipment link:presentationLink link:calculationLink link:definitionLink 9952166 - Disclosure - Goodwill and Intangibles link:presentationLink link:calculationLink link:definitionLink 9952167 - Disclosure - Accrued Expenses link:presentationLink link:calculationLink link:definitionLink 9952168 - Disclosure - Leases link:presentationLink link:calculationLink link:definitionLink 9952169 - Disclosure - Debt link:presentationLink link:calculationLink link:definitionLink 9952170 - Disclosure - Accumulated Other Comprehensive (Loss) / Income link:presentationLink link:calculationLink link:definitionLink 9952171 - Disclosure - Capital Structure link:presentationLink link:calculationLink link:definitionLink 9952172 - Disclosure - Stock Plans link:presentationLink link:calculationLink link:definitionLink 9952173 - Disclosure - 401(k) Plan link:presentationLink link:calculationLink link:definitionLink 9952174 - Disclosure - Restructuring link:presentationLink link:calculationLink link:definitionLink 9952175 - Disclosure - Income Taxes link:presentationLink link:calculationLink link:definitionLink 9952176 - Disclosure - Earnings per Common Share (“EPS”) link:presentationLink link:calculationLink link:definitionLink 9952177 - 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Disclosure - Allowance for Credit Losses (Tables) link:presentationLink link:calculationLink link:definitionLink 9955516 - Disclosure - Fair Value Measurements (Tables) link:presentationLink link:calculationLink link:definitionLink 9955517 - Disclosure - Property and Equipment (Tables) link:presentationLink link:calculationLink link:definitionLink 9955518 - Disclosure - Goodwill and Intangibles (Tables) link:presentationLink link:calculationLink link:definitionLink 9955519 - Disclosure - Accrued Expenses (Tables) link:presentationLink link:calculationLink link:definitionLink 9955520 - Disclosure - Leases (Tables) link:presentationLink link:calculationLink link:definitionLink 9955521 - Disclosure - Debt (Tables) link:presentationLink link:calculationLink link:definitionLink 9955522 - Disclosure - Accumulated Other Comprehensive (Loss) / Income (Tables) link:presentationLink link:calculationLink link:definitionLink 9955523 - Disclosure - Capital Structure (Tables) link:presentationLink link:calculationLink link:definitionLink 9955524 - Disclosure - Stock Plans (Tables) link:presentationLink link:calculationLink link:definitionLink 9955525 - Disclosure - Restructuring (Tables) link:presentationLink link:calculationLink link:definitionLink 9955526 - Disclosure - Income Taxes (Tables) link:presentationLink link:calculationLink link:definitionLink 9955527 - Disclosure - Earnings per Common Share (“EPS”) (Tables) link:presentationLink link:calculationLink link:definitionLink 9955528 - Disclosure - Commitments (Tables) link:presentationLink link:calculationLink link:definitionLink 9955529 - Disclosure - Additional Financial Information (Tables) link:presentationLink link:calculationLink link:definitionLink 9955530 - Disclosure - Segment Information (Tables) link:presentationLink link:calculationLink link:definitionLink 9955531 - Disclosure - Summary of Significant Accounting Policies - Revenue Recognition (Details) link:presentationLink link:calculationLink link:definitionLink 9955532 - Disclosure - Summary of Significant Accounting Policies - Research and Development (Details) link:presentationLink link:calculationLink link:definitionLink 9955533 - Disclosure - Summary of Significant Accounting Policies - Concentration of Credit Risk (Details) link:presentationLink link:calculationLink link:definitionLink 9955534 - Disclosure - Summary of Significant Accounting Policies - Accounts Receivable (Details) link:presentationLink link:calculationLink link:definitionLink 9955535 - Disclosure - Summary of Significant Accounting Policies - Property and Equipment (Details) link:presentationLink link:calculationLink link:definitionLink 9955536 - Disclosure - Summary of Significant Accounting Policies - Goodwill (Details) link:presentationLink link:calculationLink link:definitionLink 9955537 - Disclosure - Summary of Significant Accounting Policies - Foreign Currency (Details) link:presentationLink link:calculationLink link:definitionLink 9955538 - Disclosure - Summary of Significant Accounting Policies - Stock-Based Compensation (Details) link:presentationLink link:calculationLink link:definitionLink 9955539 - Disclosure - Summary of Significant Accounting Policies - Segment and Geographic Information (Details) link:presentationLink link:calculationLink link:definitionLink 9955540 - Disclosure - Revenue - Disaggregation of Revenue (Details) link:presentationLink link:calculationLink link:definitionLink 9955541 - Disclosure - Revenue - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955542 - Disclosure - Revenue - Contract Assets and Liabilities (Details) link:presentationLink link:calculationLink link:definitionLink 9955543 - Disclosure - Revenue - Remaining Performance Obligations (Details) link:presentationLink link:calculationLink link:definitionLink 9955543 - Disclosure - Revenue - Remaining Performance Obligations (Details) link:presentationLink link:calculationLink link:definitionLink 9955544 - Disclosure - Divestitures and Discontinued Operations - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955545 - Disclosure - Divestitures and Discontinued Operations - Schedule of Net Income From Discontinued Operations (Details) link:presentationLink link:calculationLink link:definitionLink 9955546 - Disclosure - Divestitures and Discontinued Operations - Schedule of Cash Flows Discontinued Operations (Details) link:presentationLink link:calculationLink link:definitionLink 9955547 - Disclosure - Accounts Receivable Securitization Facility (Details) link:presentationLink link:calculationLink link:definitionLink 9955548 - Disclosure - Allowance for Credit Losses - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955549 - Disclosure - Allowance for Credit Losses - Schedule of Allowance For Credit Losses (Details) link:presentationLink link:calculationLink link:definitionLink 9955550 - Disclosure - Fair Value Measurements (Details) link:presentationLink link:calculationLink link:definitionLink 9955551 - Disclosure - Note Receivable (Details) link:presentationLink link:calculationLink link:definitionLink 9955552 - 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Disclosure - Leases - Operating Lease ROU Assets (Details) link:presentationLink link:calculationLink link:definitionLink 9955561 - Disclosure - Leases - Operating Lease Liabilities (Details) link:presentationLink link:calculationLink link:definitionLink 9955562 - Disclosure - Leases - Components of Lease Expense (Details) link:presentationLink link:calculationLink link:definitionLink 9955563 - Disclosure - Leases - Maturities of Operating Lease Liabilities (Details) link:presentationLink link:calculationLink link:definitionLink 9955563 - Disclosure - Leases - Maturities of Operating Lease Liabilities (Details) link:presentationLink link:calculationLink link:definitionLink 9955564 - Disclosure - Leases - Weighted Average Lease Term and Rates (Details) link:presentationLink link:calculationLink link:definitionLink 9955565 - Disclosure - Debt - 2024 Term Loan (Details) link:presentationLink link:calculationLink link:definitionLink 9955566 - Disclosure - Debt - Repurchase of Senior Notes and Series B Preferred (Details) link:presentationLink link:calculationLink link:definitionLink 9955567 - Disclosure - Debt - 2021 Senior Notes (Details) link:presentationLink link:calculationLink link:definitionLink 9955568 - Disclosure - Debt - Carrying Amounts (Details) link:presentationLink link:calculationLink link:definitionLink 9955569 - Disclosure - Debt - Carrying Values and Estimated Fair Values of Debt Instruments (Details) link:presentationLink link:calculationLink link:definitionLink 9955570 - Disclosure - Debt - Interest Expense (Details) link:presentationLink link:calculationLink link:definitionLink 9955571 - Disclosure - Accumulated Other Comprehensive (Loss) / Income (Details) link:presentationLink link:calculationLink link:definitionLink 9955572 - Disclosure - Capital Structure - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955573 - Disclosure - Capital Structure - Preferred Stock (Details) link:presentationLink link:calculationLink link:definitionLink 9955574 - Disclosure - Stock Plans - Plan Information (Details) link:presentationLink link:calculationLink link:definitionLink 9955575 - Disclosure - Stock Plans - Black-Scholes Assumptions (Details) link:presentationLink link:calculationLink link:definitionLink 9955576 - Disclosure - Stock Plans - Stock Options (Details) link:presentationLink link:calculationLink link:definitionLink 9955577 - Disclosure - Stock Plans - Restricted Stock and Performance Stock (Details) link:presentationLink link:calculationLink link:definitionLink 9955578 - Disclosure - Stock Plans - Options Vesting (Details) link:presentationLink link:calculationLink link:definitionLink 9955579 - Disclosure - Stock Plans - Stock-based Compensation (Details) link:presentationLink link:calculationLink link:definitionLink 9955580 - Disclosure - 401(k) Plan (Details) link:presentationLink link:calculationLink link:definitionLink 9955581 - Disclosure - Restructuring - Schedule of the Restructuring Accrual and Changes (Details) link:presentationLink link:calculationLink link:definitionLink 9955582 - Disclosure - Restructuring - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955583 - Disclosure - Income Taxes - Components of Income before Income Taxes (Details) link:presentationLink link:calculationLink link:definitionLink 9955584 - Disclosure - Income Taxes - Components of Income Tax Expense (Details) link:presentationLink link:calculationLink link:definitionLink 9955585 - Disclosure - Income Taxes - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955586 - Disclosure - Income Taxes - Reconciliation of Statutory Rate (Details) link:presentationLink link:calculationLink link:definitionLink 9955587 - Disclosure - Income Taxes - Deferred Tax Assets (Liabilities) Components (Details) link:presentationLink link:calculationLink link:definitionLink 9955588 - Disclosure - Income Taxes - Carryforwards (Details) link:presentationLink link:calculationLink link:definitionLink 9955589 - Disclosure - Income Taxes - Unrecognized Tax Benefits (Details) link:presentationLink link:calculationLink link:definitionLink 9955590 - Disclosure - Earnings per Common Share (“EPS”) (Details) link:presentationLink link:calculationLink link:definitionLink 9955591 - 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