0000001 - Document - Cover Page link:presentationLink link:calculationLink link:definitionLink 9952151 - Document - Auditor Information link:presentationLink link:calculationLink link:definitionLink 9952152 - Statement - CONSOLIDATED BALANCE SHEETS link:presentationLink link:calculationLink link:definitionLink 9952153 - Statement - CONSOLIDATED STATEMENTS OF INCOME link:presentationLink link:calculationLink link:definitionLink 9952154 - Statement - CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME link:presentationLink link:calculationLink link:definitionLink 9952155 - Statement - CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY link:presentationLink link:calculationLink link:definitionLink 9952156 - Statement - CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY Equity Statement Parentheticals link:presentationLink link:calculationLink link:definitionLink 9952157 - Statement - CONSOLIDATED STATEMENTS OF CASH FLOWS link:presentationLink link:calculationLink link:definitionLink 9952158 - Statement - CONSOLIDATED BALANCE SHEETS Parentheticals link:presentationLink link:calculationLink link:definitionLink 9952159 - Disclosure - Organization and Business link:presentationLink link:calculationLink link:definitionLink 9952160 - Disclosure - Summary of Significant Accounting Policies link:presentationLink link:calculationLink link:definitionLink 9952161 - Disclosure - Revenue Recognition Revenue Recognition (Notes) link:presentationLink link:calculationLink link:definitionLink 9952162 - Disclosure - Performance Bonds and Guaranty Fund Contributions link:presentationLink link:calculationLink link:definitionLink 9952163 - Disclosure - Property link:presentationLink link:calculationLink link:definitionLink 9952164 - Disclosure - Intangible Assets and Goodwill link:presentationLink link:calculationLink link:definitionLink 9952165 - Disclosure - Long-term Investments link:presentationLink link:calculationLink link:definitionLink 9952166 - Disclosure - Debt link:presentationLink link:calculationLink link:definitionLink 9952167 - Disclosure - Income Taxes link:presentationLink link:calculationLink link:definitionLink 9952168 - Disclosure - Employee Benefit Plans link:presentationLink link:calculationLink link:definitionLink 9952169 - Disclosure - Commitments link:presentationLink link:calculationLink link:definitionLink 9952170 - Disclosure - Contingencies link:presentationLink link:calculationLink link:definitionLink 9952171 - Disclosure - Guarantees link:presentationLink link:calculationLink link:definitionLink 9952172 - Disclosure - Capital Stock link:presentationLink link:calculationLink link:definitionLink 9952173 - Disclosure - Stock-Based Payments link:presentationLink link:calculationLink link:definitionLink 9952174 - Disclosure - Accumulated Other Comprehensive Income (Loss) link:presentationLink link:calculationLink link:definitionLink 9952175 - Disclosure - Fair Value Measurements link:presentationLink link:calculationLink link:definitionLink 9952176 - Disclosure - Segment Reporting link:presentationLink link:calculationLink link:definitionLink 9952177 - Disclosure - Earnings Per Share link:presentationLink link:calculationLink link:definitionLink 9952178 - Disclosure - Subsequent Events link:presentationLink link:calculationLink link:definitionLink 9952179 - Disclosure - Schedule II—Valuation and Qualifying Accounts link:presentationLink link:calculationLink link:definitionLink 9955511 - Disclosure - Summary of Significant Accounting Policies (Policy) link:presentationLink link:calculationLink link:definitionLink 9955512 - Disclosure - Accounting Policies (Tables) link:presentationLink link:calculationLink link:definitionLink 9955513 - Disclosure - Revenue Recognition (Tables) link:presentationLink link:calculationLink link:definitionLink 9955514 - Disclosure - Performance Bonds and Guaranty Fund Contributions (Tables) link:presentationLink link:calculationLink link:definitionLink 9955515 - Disclosure - Property (Tables) link:presentationLink link:calculationLink link:definitionLink 9955516 - Disclosure - Intangible Assets and Goodwill (Tables) link:presentationLink link:calculationLink link:definitionLink 9955517 - Disclosure - Debt (Tables) link:presentationLink link:calculationLink link:definitionLink 9955518 - Disclosure - Income Taxes (Tables) link:presentationLink link:calculationLink link:definitionLink 9955519 - Disclosure - Employee Benefit Plans (Tables) link:presentationLink link:calculationLink link:definitionLink 9955520 - Disclosure - Commitments (Tables) link:presentationLink link:calculationLink link:definitionLink 9955521 - Disclosure - Capital Stock (Tables) link:presentationLink link:calculationLink link:definitionLink 9955522 - Disclosure - Stock-Based Payments (Tables) link:presentationLink link:calculationLink link:definitionLink 9955523 - Disclosure - Accumulated Other Comprehensive Income (Loss) (Tables) link:presentationLink link:calculationLink link:definitionLink 9955524 - Disclosure - Fair Value Measurements (Tables) link:presentationLink link:calculationLink link:definitionLink 9955525 - Disclosure - Segment Reporting (Tables) link:presentationLink link:calculationLink link:definitionLink 9955526 - Disclosure - Earnings Per Share (Tables) link:presentationLink link:calculationLink link:definitionLink 9955527 - Disclosure - Summary of Significant Accounting Policies (Narrative) (Details) link:presentationLink link:calculationLink link:definitionLink 9955528 - Disclosure - Revenue Recognition (Details) link:presentationLink link:calculationLink link:definitionLink 9955529 - Disclosure - Performance Bonds and Guaranty Fund Contributions (Narrative) (Details) link:presentationLink link:calculationLink link:definitionLink 9955530 - 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 9955531 - Disclosure - Performance Bonds and Guaranty Fund Contributions (Performance Bond Deposits and Security Deposits) (Details) link:presentationLink link:calculationLink link:definitionLink 9955532 - Disclosure - Performance Bonds and Guaranty Fund Contributions Available for Sale Reinvestment Securities (Details) link:presentationLink link:calculationLink link:definitionLink 9955533 - Disclosure - Property (Details) link:presentationLink link:calculationLink link:definitionLink 9955534 - Disclosure - Intangible Assets and Goodwill (Narrative) (Details) link:presentationLink link:calculationLink link:definitionLink 9955535 - Disclosure - Intangible Assets and Goodwill (Components of Intangible Assets) (Details) link:presentationLink link:calculationLink link:definitionLink 9955536 - Disclosure - Intangible Assets and Goodwill Intangible Assets and Goodwill (Useful Lives of Intangible Assets) (Details) link:presentationLink link:calculationLink link:definitionLink 9955537 - Disclosure - Intangible Assets and Goodwill (Future Estimated Amortization Expense) (Details) link:presentationLink link:calculationLink link:definitionLink 9955538 - Disclosure - Intangible Assets and Goodwill (Details) link:presentationLink link:calculationLink link:definitionLink 9955539 - Disclosure - Long-Term Investments (Details) link:presentationLink link:calculationLink link:definitionLink 9955540 - Disclosure - Debt (Schedule of Short-Term and Long-Term Debt) (Details) link:presentationLink link:calculationLink link:definitionLink 9955541 - Disclosure - Debt (Long-Term Debt Maturities at Par Value) (Details) link:presentationLink link:calculationLink link:definitionLink 9955542 - Disclosure - Income Taxes (Income Tax Provision) (Details) link:presentationLink link:calculationLink link:definitionLink 9955543 - Disclosure - Income Taxes (Federal Income Tax Rate) (Details) link:presentationLink link:calculationLink link:definitionLink 9955544 - Disclosure - Income Taxes (Deferred Tax Assets (Liabilities) ) (Details) link:presentationLink link:calculationLink link:definitionLink 9955545 - Disclosure - Income Taxes (Summary Of Unrecognized Tax Benefits) (Details) link:presentationLink link:calculationLink link:definitionLink 9955546 - Disclosure - Income Taxes (Reconciliation Of Unrecognized Tax Benefits) (Details) link:presentationLink link:calculationLink link:definitionLink 9955547 - Disclosure - Income Taxes Income Taxes (Narrative) (Details) link:presentationLink link:calculationLink link:definitionLink 9955548 - Disclosure - Employee Benefit Plans (Narrative) (Details) link:presentationLink link:calculationLink link:definitionLink 9955549 - Disclosure - Employee Benefit Plans (Summary of the change in projected benefit obligation) (Details) link:presentationLink link:calculationLink link:definitionLink 9955550 - Disclosure - Employee Benefit Plans (Change in Plan Assets) (Details) link:presentationLink link:calculationLink link:definitionLink 9955551 - Disclosure - Employee Benefit Plans (Fair Value of Plan Assets) (Details) link:presentationLink link:calculationLink link:definitionLink 9955552 - Disclosure - Employee Benefit Plans (Components of Net Pension Expense) (Details) link:presentationLink link:calculationLink link:definitionLink 9955553 - Disclosure - Employee Benefit Plans (Asset Allocation for the Plan) (Details) link:presentationLink link:calculationLink link:definitionLink 9955554 - Disclosure - Employee Benefit Plans (Accumulated Other Comprehensive Income (Loss), of the Prior Service Costs and Actuarial Losses) (Details) link:presentationLink link:calculationLink link:definitionLink 9955555 - Disclosure - Employee Benefit Plans (Anticipated Benefit Payments from the Plan in Future Years) (Details) link:presentationLink link:calculationLink link:definitionLink 9955556 - Disclosure - Leases and Other Commitments (Narrative) (Details) link:presentationLink link:calculationLink link:definitionLink 9955557 - Disclosure - Leases and Other Commitments Lease Costs (Details) link:presentationLink link:calculationLink link:definitionLink 9955558 - Disclosure - Leases and Other Commitments Supplemental Cash Flow Information-Leases (Details) link:presentationLink link:calculationLink link:definitionLink 9955559 - Disclosure - Leases and Other Commitments Supplemental Balance Sheet Information-Leases (Details) link:presentationLink link:calculationLink link:definitionLink 9955560 - Disclosure - Leases and Other Commitments Operating Leases Future Minimum Payments Due (Details) link:presentationLink link:calculationLink link:definitionLink 9955561 - Disclosure - Leases and Other Commitments Capital Lease Future Minimum Payments (Details) link:presentationLink link:calculationLink link:definitionLink 9955562 - Disclosure - Guarantees (Details) link:presentationLink link:calculationLink link:definitionLink 9955563 - Disclosure - Capital Stock (Narrative) (Details) link:presentationLink link:calculationLink link:definitionLink 9955564 - Disclosure - Capital Stock (Capital stock) (Details) link:presentationLink link:calculationLink link:definitionLink 9955565 - Disclosure - Stock-Based Payments (Narrative) (Details) link:presentationLink link:calculationLink link:definitionLink 9955566 - Disclosure - Stock-Based Payments (Compensation Expense And Income Tax Benefit Recognized) (Details) link:presentationLink link:calculationLink link:definitionLink 9955567 - Disclosure - Stock-Based Payments (Restricted Stock Activity) (Details) link:presentationLink link:calculationLink link:definitionLink 9955568 - Disclosure - Accumulated Other Comprehensive Income (Loss) (Schedule of Accumulated Other Comprehensive Income) (Details) link:presentationLink link:calculationLink link:definitionLink 9955569 - Disclosure - Fair Value Measurements (Financial Instruments Measured at Fair Value on a Recurring Basis) (Details) link:presentationLink link:calculationLink link:definitionLink 9955570 - Disclosure - Fair Value Measurements (Debt Instruments) (Details) link:presentationLink link:calculationLink link:definitionLink 9955571 - Disclosure - Fair Value Measurements (Narrative) (Details) link:presentationLink link:calculationLink link:definitionLink 9955572 - Disclosure - Segment Reporting (Details) link:presentationLink link:calculationLink link:definitionLink 9955573 - Disclosure - Earnings Per Share (Basic and Diluted Earnings Per Share) (Details) link:presentationLink link:calculationLink link:definitionLink 9955574 - Disclosure - Schedule II—Valuation and Qualifying Accounts Schedule II—Valuation and Qualifying Accounts (Details) link:presentationLink link:calculationLink link:definitionLink