100000 - Document - Document and Entity Information link:presentationLink link:calculationLink link:definitionLink 100010 - Statement - Consolidated Balance Sheets link:presentationLink link:calculationLink link:definitionLink 100020 - Statement - Consolidated Balance Sheets (Parenthetical) link:presentationLink link:calculationLink link:definitionLink 100030 - Statement - Consolidated Statements of Operations link:presentationLink link:calculationLink link:definitionLink 100040 - Statement - Consolidated Statements of Comprehensive Income link:presentationLink link:calculationLink link:definitionLink 100050 - Statement - Consolidated Statements of Comprehensive Income (Parenthetical) link:presentationLink link:calculationLink link:definitionLink 100060 - Statement - Consolidated Statements of Equity link:presentationLink link:calculationLink link:definitionLink 100070 - Statement - Consolidated Statements of Cash Flows link:presentationLink link:calculationLink link:definitionLink 100080 - Disclosure - Nature of Business and Summary of Significant Accounting Policies link:presentationLink link:calculationLink link:definitionLink 100090 - Disclosure - Earnings Per Share link:presentationLink link:calculationLink link:definitionLink 100100 - Disclosure - Property and Equipment link:presentationLink link:calculationLink link:definitionLink 100110 - Disclosure - Leases link:presentationLink link:calculationLink link:definitionLink 100120 - Disclosure - Accrued Expenses link:presentationLink link:calculationLink link:definitionLink 100130 - Disclosure - Long-Term Debt link:presentationLink link:calculationLink link:definitionLink 100140 - Disclosure - Fair Value Measurements link:presentationLink link:calculationLink link:definitionLink 100150 - Disclosure - Income Taxes link:presentationLink link:calculationLink link:definitionLink 100160 - Disclosure - Share-Based Compensation link:presentationLink link:calculationLink link:definitionLink 100170 - Disclosure - Revenue link:presentationLink link:calculationLink link:definitionLink 100180 - Disclosure - Retirement Plans link:presentationLink link:calculationLink link:definitionLink 100190 - Disclosure - Commitments and Contingencies link:presentationLink link:calculationLink link:definitionLink 100200 - Disclosure - Business Dispositions link:presentationLink link:calculationLink link:definitionLink 100210 - Disclosure - Schedule II-Valuation and Qualify Accounts link:presentationLink link:calculationLink link:definitionLink 100220 - Disclosure - Nature of Business and Summary of Significant Accounting Policies (Policies) link:presentationLink link:calculationLink link:definitionLink 100230 - Disclosure - Nature of Business and Summary of Significant Accounting Policies (Tables) link:presentationLink link:calculationLink link:definitionLink 100240 - Disclosure - Earnings Per Share (Tables) link:presentationLink link:calculationLink link:definitionLink 100250 - Disclosure - Property and Equipment (Tables) link:presentationLink link:calculationLink link:definitionLink 100260 - Disclosure - Leases (Tables) link:presentationLink link:calculationLink link:definitionLink 100270 - Disclosure - Accrued Expenses (Tables) link:presentationLink link:calculationLink link:definitionLink 100280 - Disclosure - Long-Term Debt (Tables) link:presentationLink link:calculationLink link:definitionLink 100290 - Disclosure - Fair Value Measurements (Tables) link:presentationLink link:calculationLink link:definitionLink 100300 - Disclosure - Income Taxes (Tables) link:presentationLink link:calculationLink link:definitionLink 100310 - Disclosure - Share-Based Compensation (Tables) link:presentationLink link:calculationLink link:definitionLink 100320 - Disclosure - Revenue (Tables) link:presentationLink link:calculationLink link:definitionLink 100330 - Disclosure - Business Dispositions (Tables) link:presentationLink link:calculationLink link:definitionLink 100340 - Disclosure - Nature of Business and Summary of Significant Accounting Policies (Estimated Useful Lives By Class of Assets) (Details) link:presentationLink link:calculationLink link:definitionLink 100350 - Disclosure - Nature of Business and Summary of Significant Accounting Policies (Narrative) (Details) link:presentationLink link:calculationLink link:definitionLink 100360 - Disclosure - Earnings Per Share - (Computations for Basic and Diluted Earnings Per Share) (Details) link:presentationLink link:calculationLink link:definitionLink 100370 - Disclosure - Earnings Per Share - (Narrative) (Details) link:presentationLink link:calculationLink link:definitionLink 100380 - Disclosure - Property and Equipment (Details) link:presentationLink link:calculationLink link:definitionLink 100390 - Disclosure - Property and Equipment (Narrative) (Details) link:presentationLink link:calculationLink link:definitionLink 100400 - Disclosure - Leases - (Schedule of Lease Costs) (Details) link:presentationLink link:calculationLink link:definitionLink 100410 - Disclosure - Leases - (Schedule of Maturity Analysis of Operating Lease Liabilities) (Details) link:presentationLink link:calculationLink link:definitionLink 100420 - Disclosure - Leases - (Schedule of Additional Information Related to Leases) (Details) link:presentationLink link:calculationLink link:definitionLink 100430 - Disclosure - Leases - (Schedule of Maturity Analysis of Operating Lease Liabilities) (Details) 2 link:presentationLink link:calculationLink link:definitionLink 100440 - Disclosure - Leases - (Supplemental Information Related to Leases) (Details) link:presentationLink link:calculationLink link:definitionLink 100450 - Disclosure - Accrued Expenses (Details) link:presentationLink link:calculationLink link:definitionLink 100460 - Disclosure - Long-Term Debt (Schedule of Long-Term Debt) (Details) link:presentationLink link:calculationLink link:definitionLink 100470 - Disclosure - Long-Term Debt (Narrative) (Details) link:presentationLink link:calculationLink link:definitionLink 100480 - Disclosure - Long-Term Debt (Maturities of Long-Term Debt) (Details) link:presentationLink link:calculationLink link:definitionLink 100490 - Disclosure - Fair Value Measurements (Schedule of Fair Values of Financial Instruments and Nonfinancial Assets and Liabilities Measured at the Reporting Date) (Details) link:presentationLink link:calculationLink link:definitionLink 100500 - Disclosure - Fair Value Measurements (Narrative) (Details) link:presentationLink link:calculationLink link:definitionLink 100510 - Disclosure - Fair Value Measurements (Changes in Components of Accumulated Other Comprehensive Income (Loss)) (Details) link:presentationLink link:calculationLink link:definitionLink 100520 - Disclosure - Fair Value Measurements (Adjustments Reclassified from Accumulated Balances Other Comprehensive Income (Loss) to Earnings) (Details) link:presentationLink link:calculationLink link:definitionLink 100530 - Disclosure - Income Taxes (Income Tax Provision (Benefit) (Details) link:presentationLink link:calculationLink link:definitionLink 100540 - Disclosure - Income Taxes (Income (Loss) before Income Tax from Domestic and Foreign Operations) (Details) link:presentationLink link:calculationLink link:definitionLink 100550 - Disclosure - Income Taxes (Provision (Benefit) for Income Taxes) (Details) link:presentationLink link:calculationLink link:definitionLink 100560 - Disclosure - Income Taxes (Narrative) (Details) link:presentationLink link:calculationLink link:definitionLink 100570 - Disclosure - Income Taxes (Income Tax Provision (benefit) Reconciliation) (Details) link:presentationLink link:calculationLink link:definitionLink 100580 - Disclosure - Income Taxes (Reconciliation of Unrecognized Tax Benefits) (Details) link:presentationLink link:calculationLink link:definitionLink 100590 - Disclosure - Income Taxes (Deferred Tax Assets (Liabilities) (Details) link:presentationLink link:calculationLink link:definitionLink 100600 - Disclosure - Share-Based Compensation (Narrative) (Details) link:presentationLink link:calculationLink link:definitionLink 100610 - Disclosure - Share-Based Compensation (Summary of Stock Option Activity) (Details) link:presentationLink link:calculationLink link:definitionLink 100620 - Disclosure - Share-Based Compensation (Summary of Non-Vested Restricted Stock Units) (Details) link:presentationLink link:calculationLink link:definitionLink 100630 - Disclosure - Revenue (Narrative) (Details) link:presentationLink link:calculationLink link:definitionLink 100640 - Disclosure - Revenue (Summary of Type of Work, Contract Revenues) (Details) link:presentationLink link:calculationLink link:definitionLink 100650 - Disclosure - Revenue (Summary of Type of Customer, Contract Revenues) (Details) link:presentationLink link:calculationLink link:definitionLink 100660 - Disclosure - Revenue (Schedule of Accounts Receivable) (Details) link:presentationLink link:calculationLink link:definitionLink 100670 - Disclosure - Revenue (Components of Contracts in Progress) (Details) link:presentationLink link:calculationLink link:definitionLink 100680 - Disclosure - Revenue (Summary of Gross Profit from Foreign Operations) (Details) link:presentationLink link:calculationLink link:definitionLink 100690 - Disclosure - Retirement Plans (Narrative) (Details) link:presentationLink link:calculationLink link:definitionLink 100700 - Disclosure - Commitments and Contingencies (Narrative) (Details) link:presentationLink link:calculationLink link:definitionLink 100710 - Disclosure - Business Dispositions (Narrative) (Details) link:presentationLink link:calculationLink link:definitionLink 100720 - Disclosure - Business Dispositions - (Schedule of Discontinued Operations) (Details) link:presentationLink link:calculationLink link:definitionLink 100730 - Disclosure - Revenue (Components of Contracts in Progress) (Details) 2 link:presentationLink link:calculationLink link:definitionLink 100740 - Disclosure - Schedule II-Valuation and Qualifying Accounts (Details) link:presentationLink link:calculationLink link:definitionLink