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 (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 Stockholders' Equity link:presentationLink link:calculationLink link:definitionLink 9952157 - Statement - Condensed Consolidated Statements of Stockholders' Equity (Parenthetical) link:presentationLink link:calculationLink link:definitionLink 9952158 - Statement - Condensed Consolidated Statements of Cash Flows link:presentationLink link:calculationLink link:definitionLink 9952159 - Disclosure - Basis of Presentation and Significant Accounting Policies link:presentationLink link:calculationLink link:definitionLink 9952160 - Disclosure - Acquisitions link:presentationLink link:calculationLink link:definitionLink 9952161 - Disclosure - Revenue Recognition link:presentationLink link:calculationLink link:definitionLink 9952162 - Disclosure - Pension Plans and Postretirement Benefits link:presentationLink link:calculationLink link:definitionLink 9952163 - Disclosure - Commitments and Contingencies link:presentationLink link:calculationLink link:definitionLink 9952164 - Disclosure - Fair Value Measurements link:presentationLink link:calculationLink link:definitionLink 9952165 - Disclosure - Stock-Based Compensation link:presentationLink link:calculationLink link:definitionLink 9952166 - Disclosure - Segment Reporting link:presentationLink link:calculationLink link:definitionLink 9952167 - Disclosure - Earnings Per Share link:presentationLink link:calculationLink link:definitionLink 9955511 - Disclosure - Basis of Presentation and Significant Accounting Policies (Policies) link:presentationLink link:calculationLink link:definitionLink 9955512 - Disclosure - Basis of Presentation and Significant Accounting Policies (Tables) link:presentationLink link:calculationLink link:definitionLink 9955513 - Disclosure - Acquisitions (Tables) link:presentationLink link:calculationLink link:definitionLink 9955514 - Disclosure - Revenue Recognition (Tables) link:presentationLink link:calculationLink link:definitionLink 9955515 - Disclosure - Pension Plans and Postretirement Benefits (Tables) link:presentationLink link:calculationLink link:definitionLink 9955516 - Disclosure - Fair Value Measurements (Tables) link:presentationLink link:calculationLink link:definitionLink 9955517 - Disclosure - Segment Reporting (Tables) link:presentationLink link:calculationLink link:definitionLink 9955518 - Disclosure - Earnings Per Share (Tables) link:presentationLink link:calculationLink link:definitionLink 9955519 - Disclosure - Basis of Presentation and Significant Accounting Policies - Additional Information (Details) link:presentationLink link:calculationLink link:definitionLink 9955520 - Disclosure - Basis of Presentation and Significant Accounting Policies - Reconciliation of Cash and Cash Equivalents and Restricted Cash and Cash Equivalents (Details) link:presentationLink link:calculationLink link:definitionLink 9955521 - Disclosure - Basis of Presentation and Significant Accounting Policies - Property, Plant and Equipment (Details) link:presentationLink link:calculationLink link:definitionLink 9955522 - Disclosure - Basis of Presentation and Significant Accounting Policies - Accumulated Other Comprehensive Income (Loss) (Details) link:presentationLink link:calculationLink link:definitionLink 9955523 - Disclosure - Basis of Presentation and Significant Accounting Policies - Schedule of Amounts Reclassified from Accumulated Other Comprehensive Income (Loss) (Details) link:presentationLink link:calculationLink link:definitionLink 9955524 - Disclosure - Acquisitions - Additional Information (Details) link:presentationLink link:calculationLink link:definitionLink 9955525 - Disclosure - Acquisitions - Schedule of Finite-Lived Intangible Assets Acquired (Details) link:presentationLink link:calculationLink link:definitionLink 9955526 - Disclosure - Acquisitions - Intangible Assets Acquired (Detail) link:presentationLink link:calculationLink link:definitionLink 9955527 - Disclosure - Revenue Recognition - Additional Details (Details) link:presentationLink link:calculationLink link:definitionLink 9955527 - Disclosure - Revenue Recognition - Additional Details (Details) link:presentationLink link:calculationLink link:definitionLink 9955528 - Disclosure - Revenue Recognition - Disaggregated Revenues (Details) link:presentationLink link:calculationLink link:definitionLink 9955529 - Disclosure - Revenue Recognition - Summary of Impact of Changes In Estimates (Details) link:presentationLink link:calculationLink link:definitionLink 9955530 - Disclosure - Revenue Recognition - Contract Assets and Liabilities (Details) link:presentationLink link:calculationLink link:definitionLink 9955531 - Disclosure - Pension Plans and Postretirement Benefits - Additional Details (Details) link:presentationLink link:calculationLink link:definitionLink 9955532 - Disclosure - Pension Plans and Postretirement Benefits - Components of Net Periodic Benefit Cost (Details) link:presentationLink link:calculationLink link:definitionLink 9955533 - Disclosure - Fair Value Measurements - Summary of Investments and Available-for-Sale Securities Measured at Fair Value (Details) link:presentationLink link:calculationLink link:definitionLink 9955534 - Disclosure - Fair Value Measurements - Additional Information (Details) link:presentationLink link:calculationLink link:definitionLink 9955535 - Disclosure - Stock-Based Compensation (Details) link:presentationLink link:calculationLink link:definitionLink 9955536 - Disclosure - Segment Reporting - Additional Information (Details) link:presentationLink link:calculationLink link:definitionLink 9955537 - Disclosure - Segment Reporting - Schedule of Operating Results by Segment (Details) link:presentationLink link:calculationLink link:definitionLink 9955538 - Disclosure - Segment Reporting - Schedule of Revenue Information by Products and Service Lines (Details) link:presentationLink link:calculationLink link:definitionLink 9955539 - Disclosure - Segment Reporting - Schedule of Consolidated Operations by Geographical Area (Details) link:presentationLink link:calculationLink link:definitionLink 9955540 - Disclosure - Earnings Per Share (Details) link:presentationLink link:calculationLink link:definitionLink