0000001 - Document - Cover link:presentationLink link:calculationLink link:definitionLink 0000002 - Document - Audit Information link:presentationLink link:calculationLink link:definitionLink 9952151 - Statement - Consolidated Statements of Operations link:presentationLink link:calculationLink link:definitionLink 9952152 - Statement - Consolidated Statements of Comprehensive Income link:presentationLink link:calculationLink link:definitionLink 9952153 - Statement - Consolidated Balance Sheets link:presentationLink link:calculationLink link:definitionLink 9952154 - Statement - Consolidated Balance Sheets (Parenthetical) link:presentationLink link:calculationLink link:definitionLink 9952155 - Statement - Consolidated Statements of Cash Flows link:presentationLink link:calculationLink link:definitionLink 9952156 - Statement - Consolidated Statements of Changes in Equity link:presentationLink link:calculationLink link:definitionLink 9952157 - Disclosure - Organization link:presentationLink link:calculationLink link:definitionLink 9952158 - 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Disclosure - Accrued Expenses link:presentationLink link:calculationLink link:definitionLink 9952169 - Disclosure - Stockholders' Equity link:presentationLink link:calculationLink link:definitionLink 9952170 - Disclosure - Stock-Based Compensation link:presentationLink link:calculationLink link:definitionLink 9952171 - Disclosure - Employee Benefit Plans link:presentationLink link:calculationLink link:definitionLink 9952172 - Disclosure - Restructuring Charges and Other link:presentationLink link:calculationLink link:definitionLink 9952173 - Disclosure - Income Taxes link:presentationLink link:calculationLink link:definitionLink 9952174 - Disclosure - Commitments and Contingencies link:presentationLink link:calculationLink link:definitionLink 9952175 - Disclosure - Subsequent Events link:presentationLink link:calculationLink link:definitionLink 9955511 - Disclosure - Basis of Presentation and Significant Accounting Policies (Policies) link:presentationLink link:calculationLink link:definitionLink 9955512 - 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Allowance for Doubtful Accounts (Details) link:presentationLink link:calculationLink link:definitionLink 9955530 - Disclosure - Basis of Presentation and Significant Accounting Policies - Useful Lives (Details) link:presentationLink link:calculationLink link:definitionLink 9955531 - Disclosure - Basis of Presentation and Significant Accounting Policies - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955532 - Disclosure - Revenue Recognition - Revenue Disaggregated by Geographic Area (Details) link:presentationLink link:calculationLink link:definitionLink 9955533 - Disclosure - Revenue Recognition - Revenue Disaggregated by Industry Sector (Details) link:presentationLink link:calculationLink link:definitionLink 9955534 - Disclosure - Revenue Recognition - Contract Liability (Details) link:presentationLink link:calculationLink link:definitionLink 9955535 - Disclosure - Acquisitions - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955536 - Disclosure - Acquisition - Schedule of Fair Value of Assets Acquired and Liabilities Assumed at Acquisition Date (Details) link:presentationLink link:calculationLink link:definitionLink 9955537 - Disclosure - Acquisition - Schedule of Pro Forma Information (Details) link:presentationLink link:calculationLink link:definitionLink 9955538 - Disclosure - Segment Reporting - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955539 - Disclosure - Segment Reporting - Schedule of Operating Segment Information (Details) link:presentationLink link:calculationLink link:definitionLink 9955540 - Disclosure - Segment Information - Schedule of Long-lived Assets (Details) link:presentationLink link:calculationLink link:definitionLink 9955541 - Disclosure - Goodwill (Details) link:presentationLink link:calculationLink link:definitionLink 9955542 - Disclosure - Intangible Assets - Schedule of Finite-lived Intangible Assets (Details) link:presentationLink link:calculationLink link:definitionLink 9955543 - Disclosure - Intangible Assets - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955544 - Disclosure - Intangible Assets - Schedule of Future Amortization Expense (Details) link:presentationLink link:calculationLink link:definitionLink 9955545 - Disclosure - Property and Equipment - Schedule of Property, Plant and Equipment (Details) link:presentationLink link:calculationLink link:definitionLink 9955546 - Disclosure - Property and Equipment - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955547 - Disclosure - Leases - Supplemental Balance Sheet Information (Details) link:presentationLink link:calculationLink link:definitionLink 9955548 - Disclosure - Leases - Lease Expenses (Details) link:presentationLink link:calculationLink link:definitionLink 9955549 - Disclosure - Leases - Supplemental Cash Flows (Details) link:presentationLink link:calculationLink link:definitionLink 9955550 - Disclosure - Leases - Schedule of Weighted Average Remaining Lease Term and Discount Rate (Details) link:presentationLink link:calculationLink link:definitionLink 9955551 - Disclosure - Leases - Maturities of Operating and Financing Lease Liabilities (Details) link:presentationLink link:calculationLink link:definitionLink 9955551 - Disclosure - Leases - Maturities of Operating and Financing Lease Liabilities (Details) link:presentationLink link:calculationLink link:definitionLink 9955552 - Disclosure - Leases - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955553 - Disclosure - Debt and Financing Arrangements - Schedule of Debt (Details) link:presentationLink link:calculationLink link:definitionLink 9955554 - Disclosure - Debt and Financing Arrangements - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955555 - Disclosure - Debt and Financing Arrangements - Schedule of Long-Term Debt Maturities (Details) link:presentationLink link:calculationLink link:definitionLink 9955556 - Disclosure - Debt and Financing Arrangements - Schedule of Trade Receivables Sold (Details) link:presentationLink link:calculationLink link:definitionLink 9955557 - 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Disclosure - Employee Benefit Plans - Schedule of Funded Status Recognized in the Consolidated Balance Sheets (Details) link:presentationLink link:calculationLink link:definitionLink 9955571 - Disclosure - Employee Benefit Plans - Schedule of Components of Net Periodic Benefit Cost Recognized (Details) link:presentationLink link:calculationLink link:definitionLink 9955572 - Disclosure - Employee Benefit Plans - Schedule of Amounts Recognized in Other Comprehensive Income (Details) link:presentationLink link:calculationLink link:definitionLink 9955573 - Disclosure - Employee Benefit Plans - Schedule of Weighted-average Assumptions Used (Details) link:presentationLink link:calculationLink link:definitionLink 9955574 - Disclosure - Employee Benefit Plans - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955575 - Disclosure - Employee Benefit Plans - Schedule of Fair Values of Investments Held in the Pension Plans by Major Asset Category (Details) link:presentationLink link:calculationLink link:definitionLink 9955576 - 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