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Document - Document and Entity Information link:presentationLink link:calculationLink link:definitionLink 2121100 - Disclosure - Earnings Per Share link:presentationLink link:calculationLink link:definitionLink 2421402 - Disclosure - Earnings Per Share (Basic and Diluted Earnings Per Share) (Details) link:presentationLink link:calculationLink link:definitionLink 2321301 - Disclosure - Earnings Per Share (Tables) link:presentationLink link:calculationLink link:definitionLink 2111100 - Disclosure - Employee Benefit Plans link:presentationLink link:calculationLink link:definitionLink 2411409 - Disclosure - Employee Benefit Plans (Accumulated Other Comprehensive Income (Loss), of the Prior Service Costs and Actuarial Losses) (Details) link:presentationLink link:calculationLink link:definitionLink 2411410 - Disclosure - Employee Benefit Plans (Anticipated Benefit Payments from the Plan in Future Years) (Details) link:presentationLink link:calculationLink link:definitionLink 2411407 - Disclosure - 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Disclosure - Intangible Assets and Goodwill link:presentationLink link:calculationLink link:definitionLink 2406403 - Disclosure - Intangible Assets and Goodwill (Components of Intangible Assets) (Details) link:presentationLink link:calculationLink link:definitionLink 2406405 - Disclosure - Intangible Assets and Goodwill (Future Estimated Amortization Expense) (Details) link:presentationLink link:calculationLink link:definitionLink 2406406 - Disclosure - Intangible Assets and Goodwill (Goodwill Activity) (Details) link:presentationLink link:calculationLink link:definitionLink 2406404 - Disclosure - Intangible Assets and Goodwill Intangible Assets and Goodwill (Useful Lives of Intangible Assets) (Details) link:presentationLink link:calculationLink link:definitionLink 2406402 - Disclosure - Intangible Assets and Goodwill (Narrative) (Details) link:presentationLink link:calculationLink link:definitionLink 2306301 - Disclosure - Intangible Assets and Goodwill (Tables) link:presentationLink link:calculationLink link:definitionLink 2107100 - 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Disclosure - Organization and Business (Details) link:presentationLink link:calculationLink link:definitionLink 2104100 - Disclosure - Performance Bonds and Guaranty Fund Contributions link:presentationLink link:calculationLink link:definitionLink 2404403 - Disclosure - Performance Bonds and Guaranty Fund Contributions (Cash and Securities Held as Performance Bonds and Guaranty Fund Contributions at Fair Value) (Details) link:presentationLink link:calculationLink link:definitionLink 2404402 - Disclosure - Performance Bonds and Guaranty Fund Contributions (Narrative) (Details) link:presentationLink link:calculationLink link:definitionLink 2404404 - Disclosure - Performance Bonds and Guaranty Fund Contributions (Performance Bond Deposits and Security Deposits) (Details) link:presentationLink link:calculationLink link:definitionLink 2304301 - Disclosure - Performance Bonds and Guaranty Fund Contributions (Tables) link:presentationLink link:calculationLink link:definitionLink 2105100 - Disclosure - 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Disclosure - Schedule II—Valuation and Qualifying Accounts link:presentationLink link:calculationLink link:definitionLink 2424401 - Disclosure - Schedule II—Valuation and Qualifying Accounts Schedule II—Valuation and Qualifying Accounts (Details) link:presentationLink link:calculationLink link:definitionLink 2118100 - Disclosure - Stock-Based Payments link:presentationLink link:calculationLink link:definitionLink 2418403 - Disclosure - Stock-Based Payments (Compensation Expense And Income Tax Benefit Recognized) (Details) link:presentationLink link:calculationLink link:definitionLink 2418404 - Disclosure - Stock-Based Payments (Disclosure of Share Based Compensation Arrangements by Share Based Payment Award) (Details) link:presentationLink link:calculationLink link:definitionLink 2418402 - Disclosure - Stock-Based Payments (Narrative) (Details) link:presentationLink link:calculationLink link:definitionLink 2418406 - Disclosure - Stock-Based Payments (Restricted Stock Activity) (Details) link:presentationLink link:calculationLink link:definitionLink 2418405 - 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