0000001 - Document - Cover Page link:presentationLink link:calculationLink link:definitionLink 0000002 - Document - Auditor Information link:presentationLink link:calculationLink link:definitionLink 0000003 - Statement - CONSOLIDATED BALANCE SHEETS link:presentationLink link:calculationLink link:definitionLink 0000004 - Statement - CONSOLIDATED STATEMENTS OF INCOME link:presentationLink link:calculationLink link:definitionLink 0000005 - Statement - CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME link:presentationLink link:calculationLink link:definitionLink 0000006 - Statement - CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY link:presentationLink link:calculationLink link:definitionLink 0000007 - Statement - CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY Equity Statement Parentheticals link:presentationLink link:calculationLink link:definitionLink 0000008 - Statement - CONSOLIDATED STATEMENTS OF CASH FLOWS link:presentationLink link:calculationLink link:definitionLink 0000009 - Statement - CONSOLIDATED BALANCE SHEETS Parentheticals link:presentationLink link:calculationLink link:definitionLink 0000010 - Disclosure - Organization and Business link:presentationLink link:calculationLink link:definitionLink 0000011 - Disclosure - Summary of Significant Accounting Policies link:presentationLink link:calculationLink link:definitionLink 0000012 - Disclosure - Revenue Recognition Revenue Recognition (Notes) link:presentationLink link:calculationLink link:definitionLink 0000013 - Disclosure - Performance Bonds and Guaranty Fund Contributions link:presentationLink link:calculationLink link:definitionLink 0000014 - Disclosure - Property link:presentationLink link:calculationLink link:definitionLink 0000015 - Disclosure - Intangible Assets and Goodwill link:presentationLink link:calculationLink link:definitionLink 0000016 - Disclosure - Long-term Investments link:presentationLink link:calculationLink link:definitionLink 0000017 - Disclosure - Debt link:presentationLink link:calculationLink link:definitionLink 0000018 - Disclosure - Income Taxes link:presentationLink link:calculationLink link:definitionLink 0000019 - Disclosure - Employee Benefit Plans link:presentationLink link:calculationLink link:definitionLink 0000020 - Disclosure - Commitments link:presentationLink link:calculationLink link:definitionLink 0000021 - Disclosure - Contingencies link:presentationLink link:calculationLink link:definitionLink 0000022 - Disclosure - Guarantees link:presentationLink link:calculationLink link:definitionLink 0000023 - Disclosure - Capital Stock link:presentationLink link:calculationLink link:definitionLink 0000024 - Disclosure - Stock-Based Payments link:presentationLink link:calculationLink link:definitionLink 0000025 - Disclosure - Accumulated Other Comprehensive Income (Loss) link:presentationLink link:calculationLink link:definitionLink 0000026 - Disclosure - Fair Value Measurements link:presentationLink link:calculationLink link:definitionLink 0000027 - Disclosure - Earnings Per Share link:presentationLink link:calculationLink link:definitionLink 0000028 - Disclosure - Subsequent Events link:presentationLink link:calculationLink link:definitionLink 0000029 - Disclosure - Schedule II—Valuation and Qualifying Accounts link:presentationLink link:calculationLink link:definitionLink 9954471 - Disclosure - Summary of Significant Accounting Policies (Policy) link:presentationLink link:calculationLink link:definitionLink 9954472 - Disclosure - Accounting Policies (Tables) link:presentationLink link:calculationLink link:definitionLink 9954473 - Disclosure - Revenue Recognition (Tables) link:presentationLink link:calculationLink link:definitionLink 9954474 - Disclosure - Performance Bonds and Guaranty Fund Contributions (Tables) link:presentationLink link:calculationLink link:definitionLink 9954475 - Disclosure - Property (Tables) link:presentationLink link:calculationLink link:definitionLink 9954476 - Disclosure - Intangible Assets and Goodwill (Tables) link:presentationLink link:calculationLink link:definitionLink 9954477 - Disclosure - Intangible Assets and Goodwill Goodwill (Tables) link:presentationLink link:calculationLink link:definitionLink 9954478 - Disclosure - Debt (Tables) link:presentationLink link:calculationLink link:definitionLink 9954479 - Disclosure - Income Taxes (Tables) link:presentationLink link:calculationLink link:definitionLink 9954480 - Disclosure - Employee Benefit Plans (Tables) link:presentationLink link:calculationLink link:definitionLink 9954481 - Disclosure - Commitments (Tables) link:presentationLink link:calculationLink link:definitionLink 9954482 - Disclosure - Capital Stock (Tables) link:presentationLink link:calculationLink link:definitionLink 9954483 - Disclosure - Stock-Based Payments (Tables) link:presentationLink link:calculationLink link:definitionLink 9954484 - Disclosure - Accumulated Other Comprehensive Income (Loss) (Tables) link:presentationLink link:calculationLink link:definitionLink 9954485 - Disclosure - Fair Value Measurements (Tables) link:presentationLink link:calculationLink link:definitionLink 9954486 - Disclosure - Earnings Per Share (Tables) link:presentationLink link:calculationLink link:definitionLink 9954487 - Disclosure - Summary of Significant Accounting Policies (Narrative) (Details) link:presentationLink link:calculationLink link:definitionLink 9954488 - Disclosure - Revenue Recognition (Details) link:presentationLink link:calculationLink link:definitionLink 9954489 - Disclosure - Performance Bonds and Guaranty Fund Contributions (Narrative) (Details) link:presentationLink link:calculationLink link:definitionLink 9954490 - 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 9954491 - Disclosure - Performance Bonds and Guaranty Fund Contributions (Performance Bond Deposits and Security Deposits) (Details) link:presentationLink link:calculationLink link:definitionLink 9954492 - Disclosure - Performance Bonds and Guaranty Fund Contributions Available for Sale Reinvestment Securities (Details) link:presentationLink link:calculationLink link:definitionLink 9954493 - Disclosure - Property (Details) link:presentationLink link:calculationLink link:definitionLink 9954494 - Disclosure - Intangible Assets and Goodwill (Narrative) (Details) link:presentationLink link:calculationLink link:definitionLink 9954495 - Disclosure - Intangible Assets and Goodwill (Components of Intangible Assets) (Details) link:presentationLink link:calculationLink link:definitionLink 9954496 - Disclosure - Intangible Assets and Goodwill Intangible Assets and Goodwill (Useful Lives of Intangible Assets) (Details) link:presentationLink link:calculationLink link:definitionLink 9954497 - Disclosure - Intangible Assets and Goodwill (Future Estimated Amortization Expense) (Details) link:presentationLink link:calculationLink link:definitionLink 9954498 - Disclosure - Intangible Assets and Goodwill Intangible Assets and Goodwill (Components of Goodwill) (Details) link:presentationLink link:calculationLink link:definitionLink 9954499 - Disclosure - Long-Term Investments (Details) link:presentationLink link:calculationLink link:definitionLink 9954500 - Disclosure - Debt (Schedule of Short-Term and Long-Term Debt) (Details) link:presentationLink link:calculationLink link:definitionLink 9954501 - Disclosure - Debt (Long-Term Debt Maturities at Par Value) (Details) link:presentationLink link:calculationLink link:definitionLink 9954502 - Disclosure - Income Taxes (Income Tax Provision) (Details) link:presentationLink link:calculationLink link:definitionLink 9954503 - Disclosure - Income Taxes (Federal Income Tax Rate) (Details) link:presentationLink link:calculationLink link:definitionLink 9954504 - Disclosure - Income Taxes (Deferred Tax Assets (Liabilities) ) (Details) link:presentationLink link:calculationLink link:definitionLink 9954505 - Disclosure - Income Taxes (Summary Of Unrecognized Tax Benefits) (Details) link:presentationLink link:calculationLink link:definitionLink 9954506 - Disclosure - Income Taxes (Reconciliation Of Unrecognized Tax Benefits) (Details) link:presentationLink link:calculationLink link:definitionLink 9954507 - Disclosure - Income Taxes Income Taxes (Narrative) (Details) link:presentationLink link:calculationLink link:definitionLink 9954508 - Disclosure - Employee Benefit Plans (Narrative) (Details) link:presentationLink link:calculationLink link:definitionLink 9954509 - Disclosure - Employee Benefit Plans (Summary of the change in projected benefit obligation) (Details) link:presentationLink link:calculationLink link:definitionLink 9954510 - Disclosure - Employee Benefit Plans (Change in Plan Assets) (Details) link:presentationLink link:calculationLink link:definitionLink 9954511 - Disclosure - Employee Benefit Plans (Fair Value of Plan Assets) (Details) link:presentationLink link:calculationLink link:definitionLink 9954512 - Disclosure - Employee Benefit Plans (Components of Net Pension Expense) (Details) link:presentationLink link:calculationLink link:definitionLink 9954513 - Disclosure - Employee Benefit Plans (Asset Allocation for the Plan) (Details) link:presentationLink link:calculationLink link:definitionLink 9954514 - Disclosure - Employee Benefit Plans (Accumulated Other Comprehensive Income (Loss), of the Prior Service Costs and Actuarial Losses) (Details) link:presentationLink link:calculationLink link:definitionLink 9954515 - Disclosure - Employee Benefit Plans (Anticipated Benefit Payments from the Plan in Future Years) (Details) link:presentationLink link:calculationLink link:definitionLink 9954516 - Disclosure - Leases and Other Commitments (Narrative) (Details) link:presentationLink link:calculationLink link:definitionLink 9954517 - Disclosure - Leases and Other Commitments Lease Costs (Details) link:presentationLink link:calculationLink link:definitionLink 9954518 - Disclosure - Leases and Other Commitments Supplemental Cash Flow Information-Leases (Details) link:presentationLink link:calculationLink link:definitionLink 9954519 - Disclosure - Leases and Other Commitments Supplemental Balance Sheet Information-Leases (Details) link:presentationLink link:calculationLink link:definitionLink 9954520 - Disclosure - Leases and Other Commitments Operating Leases Future Minimum Payments Due (Details) link:presentationLink link:calculationLink link:definitionLink 9954521 - Disclosure - Leases and Other Commitments Capital Lease Future Minimum Payments (Details) link:presentationLink link:calculationLink link:definitionLink 9954522 - Disclosure - Guarantees (Details) link:presentationLink link:calculationLink link:definitionLink 9954523 - Disclosure - Capital Stock (Narrative) (Details) link:presentationLink link:calculationLink link:definitionLink 9954524 - Disclosure - Capital Stock (Capital stock) (Details) link:presentationLink link:calculationLink link:definitionLink 9954525 - Disclosure - Stock-Based Payments (Narrative) (Details) link:presentationLink link:calculationLink link:definitionLink 9954526 - Disclosure - Stock-Based Payments (Compensation Expense And Income Tax Benefit Recognized) (Details) link:presentationLink link:calculationLink link:definitionLink 9954527 - Disclosure - Stock-Based Payments (Restricted Stock Activity) (Details) link:presentationLink link:calculationLink link:definitionLink 9954528 - Disclosure - Accumulated Other Comprehensive Income (Loss) (Schedule of Accumulated Other Comprehensive Income) (Details) link:presentationLink link:calculationLink link:definitionLink 9954529 - Disclosure - Fair Value Measurements (Financial Instruments Measured at Fair Value on a Recurring Basis) (Details) link:presentationLink link:calculationLink link:definitionLink 9954530 - Disclosure - Fair Value Measurements (Debt Instruments) (Details) link:presentationLink link:calculationLink link:definitionLink 9954531 - Disclosure - Fair Value Measurements (Narrative) (Details) link:presentationLink link:calculationLink link:definitionLink 9954532 - Disclosure - Earnings Per Share (Basic and Diluted Earnings Per Share) (Details) link:presentationLink link:calculationLink link:definitionLink 9954533 - Disclosure - Schedule II—Valuation and Qualifying Accounts Schedule II—Valuation and Qualifying Accounts (Details) link:presentationLink link:calculationLink link:definitionLink