0000001 - Document - Cover Page link:presentationLink link:calculationLink link:definitionLink 9952151 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF INCOME link:presentationLink link:calculationLink link:definitionLink 9952152 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME link:presentationLink link:calculationLink link:definitionLink 9952153 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) (Parenthetical) link:presentationLink link:calculationLink link:definitionLink 9952154 - Statement - CONDENSED CONSOLIDATED BALANCE SHEETS link:presentationLink link:calculationLink link:definitionLink 9952155 - Statement - CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) link:presentationLink link:calculationLink link:definitionLink 9952156 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS link:presentationLink link:calculationLink link:definitionLink 9952157 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY link:presentationLink link:calculationLink link:definitionLink 9952158 - Disclosure - Summary of Significant Accounting Policies link:presentationLink link:calculationLink link:definitionLink 9952159 - Disclosure - Revenues by Geography, Concentration of Credit Risk and Remaining Performance Obligations link:presentationLink link:calculationLink link:definitionLink 9952160 - Disclosure - Trade Accounts Receivable, Unbilled Services and Unearned Income link:presentationLink link:calculationLink link:definitionLink 9952161 - Disclosure - Goodwill link:presentationLink link:calculationLink link:definitionLink 9952162 - Disclosure - Derivatives link:presentationLink link:calculationLink link:definitionLink 9952163 - Disclosure - Fair Value Measurements link:presentationLink link:calculationLink link:definitionLink 9952164 - Disclosure - Credit Arrangements link:presentationLink link:calculationLink link:definitionLink 9952165 - Disclosure - Contingencies link:presentationLink link:calculationLink link:definitionLink 9952166 - Disclosure - Stockholders' Equity link:presentationLink link:calculationLink link:definitionLink 9952167 - Disclosure - Business Combinations link:presentationLink link:calculationLink link:definitionLink 9952168 - Disclosure - Restructuring link:presentationLink link:calculationLink link:definitionLink 9952169 - Disclosure - Income Taxes link:presentationLink link:calculationLink link:definitionLink 9952170 - Disclosure - Accumulated Other Comprehensive (Loss) Income link:presentationLink link:calculationLink link:definitionLink 9952171 - Disclosure - Segments link:presentationLink link:calculationLink link:definitionLink 9952172 - Disclosure - Earnings Per Share link:presentationLink link:calculationLink link:definitionLink 9955511 - Disclosure - Summary of Significant Accounting Policies (Policies) link:presentationLink link:calculationLink link:definitionLink 9955512 - Disclosure - Revenues by Geography, Concentration of Credit Risk and Remaining Performance Obligations (Tables) link:presentationLink link:calculationLink link:definitionLink 9955513 - Disclosure - Trade Accounts Receivable, Unbilled Services and Unearned Income (Tables) link:presentationLink link:calculationLink link:definitionLink 9955514 - Disclosure - Goodwill (Tables) link:presentationLink link:calculationLink link:definitionLink 9955515 - Disclosure - Derivatives (Tables) link:presentationLink link:calculationLink link:definitionLink 9955516 - Disclosure - Fair Value Measurements (Tables) link:presentationLink link:calculationLink link:definitionLink 9955517 - Disclosure - Credit Arrangements (Tables) link:presentationLink link:calculationLink link:definitionLink 9955518 - Disclosure - Business Combinations (Tables) link:presentationLink link:calculationLink link:definitionLink 9955519 - Disclosure - Restructuring (Tables) link:presentationLink link:calculationLink link:definitionLink 9955520 - Disclosure - Accumulated Other Comprehensive (Loss) Income (Tables) link:presentationLink link:calculationLink link:definitionLink 9955521 - Disclosure - Segments (Tables) link:presentationLink link:calculationLink link:definitionLink 9955522 - Disclosure - Earnings Per Share (Tables) link:presentationLink link:calculationLink link:definitionLink 9955523 - Disclosure - Summary of Significant Accounting Policies - Additional Information (Detail) link:presentationLink link:calculationLink link:definitionLink 9955524 - Disclosure - Revenues by Geography, Concentration of Credit Risk and Remaining Performance Obligations - Summary of Revenues by Geographic Region and Reportable Segment (Detail) link:presentationLink link:calculationLink link:definitionLink 9955525 - Disclosure - Revenues by Geography, Concentration of Credit Risk and Remaining Performance Obligations - Additional Information (Detail) link:presentationLink link:calculationLink link:definitionLink 9955526 - Disclosure - Revenues by Geography, Concentration of Credit Risk and Remaining Performance Obligations - Future Obligation Terms (Detail) link:presentationLink link:calculationLink link:definitionLink 9955527 - Disclosure - Trade Accounts Receivable, Unbilled Services and Unearned Income - Trade Accounts Receivable and Unbilled Services (Detail) link:presentationLink link:calculationLink link:definitionLink 9955528 - Disclosure - Trade Accounts Receivable, Unbilled Services and Unearned Income - Schedule of Net Contract Assets (Liabilities) (Detail) link:presentationLink link:calculationLink link:definitionLink 9955529 - Disclosure - Trade Accounts Receivable, Unbilled Services and Unearned Income - Additional Information (Detail) link:presentationLink link:calculationLink link:definitionLink 9955530 - Disclosure - Goodwill - Summary of Goodwill by Reportable Segment (Detail) link:presentationLink link:calculationLink link:definitionLink 9955531 - Disclosure - Goodwill - Additional Information (Detail) link:presentationLink link:calculationLink link:definitionLink 9955532 - Disclosure - Derivatives - Summary of Fair Values of Derivative Instruments Designated as Hedges (Detail) link:presentationLink link:calculationLink link:definitionLink 9955533 - Disclosure - Derivatives - Effect of Cash Flow Hedging Instruments on Other Comprehensive (Loss) Income (Detail) link:presentationLink link:calculationLink link:definitionLink 9955534 - Disclosure - Derivatives - Additional Information (Detail) link:presentationLink link:calculationLink link:definitionLink 9955535 - Disclosure - Fair Value Measurements - Additional Information (Detail) link:presentationLink link:calculationLink link:definitionLink 9955536 - Disclosure - Fair Value Measurements - Fair Value of Financial Assets and Liabilities Measured on Recurring Basis (Detail) link:presentationLink link:calculationLink link:definitionLink 9955537 - Disclosure - Fair Value Measurements - Changes in Level 3 Financial Assets and Liabilities Measured on Recurring Basis (Detail) link:presentationLink link:calculationLink link:definitionLink 9955538 - Disclosure - Credit Arrangements - Summary of Credit Facilities (Detail) link:presentationLink link:calculationLink link:definitionLink 9955539 - Disclosure - Credit Arrangements - Summary of Debt (Detail) link:presentationLink link:calculationLink link:definitionLink 9955540 - Disclosure - Credit Arrangements - Contractual Maturities of Long-term Debt (Detail) link:presentationLink link:calculationLink link:definitionLink 9955541 - Disclosure - Credit Arrangements - Senior Secured Credit Facilities (Detail) link:presentationLink link:calculationLink link:definitionLink 9955542 - Disclosure - Stockholders' Equity (Detail) link:presentationLink link:calculationLink link:definitionLink 9955543 - Disclosure - Business Combinations - Schedule of Recognized Identified Assets Acquired and Liabilities Assumed (Details) link:presentationLink link:calculationLink link:definitionLink 9955544 - Disclosure - Business Combinations - Indefinite-Lived Intangible Assets Acquired as Part of Business Combination (Details) link:presentationLink link:calculationLink link:definitionLink 9955545 - Disclosure - Restructuring - Summary of Amounts Recorded for Restructuring Plans (Detail) link:presentationLink link:calculationLink link:definitionLink 9955546 - Disclosure - Income Taxes - Narratives (Detail) link:presentationLink link:calculationLink link:definitionLink 9955547 - Disclosure - Accumulated Other Comprehensive (Loss) Income - Summary of Components of AOCI (Detail) link:presentationLink link:calculationLink link:definitionLink 9955548 - Disclosure - Accumulated Other Comprehensive (Loss) Income - Summary of Adjustments for (Gains) Losses Reclassified from AOCI into Condensed Consolidated Statements of Income and Affected Financial Statement Line Item (Detail) link:presentationLink link:calculationLink link:definitionLink 9955549 - Disclosure - Segments - Additional Information (Detail) link:presentationLink link:calculationLink link:definitionLink 9955550 - Disclosure - Segments - Operations by Reportable Segments (Detail) link:presentationLink link:calculationLink link:definitionLink 9955551 - Disclosure - Earnings Per Share - Reconciles the Basic to Diluted Weighted Average Shares Outstanding (Detail) link:presentationLink link:calculationLink link:definitionLink 9955552 - Disclosure - Earnings Per Share - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink