0001001 - Document - Cover Page link:presentationLink link:calculationLink link:definitionLink 1001002 - Statement - CONSOLIDATED BALANCE SHEETS link:presentationLink link:calculationLink link:definitionLink 1402401 - Statement - CONSOLIDATED BALANCE SHEETS Parentheticals link:presentationLink link:calculationLink link:definitionLink 1003003 - Statement - CONSOLIDATED STATEMENTS OF INCOME link:presentationLink link:calculationLink link:definitionLink 1004004 - Statement - CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME link:presentationLink link:calculationLink link:definitionLink 1005005 - Statement - CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY link:presentationLink link:calculationLink link:definitionLink 1006006 - Statement - CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY Equity Statement Parentheticals link:presentationLink link:calculationLink link:definitionLink 1007007 - Statement - CONSOLIDATED STATEMENTS OF CASH FLOWS link:presentationLink link:calculationLink link:definitionLink 2101101 - Disclosure - Organization and Business link:presentationLink link:calculationLink link:definitionLink 2102102 - Disclosure - Summary of Significant Accounting Policies link:presentationLink link:calculationLink link:definitionLink 2203201 - Disclosure - Summary of Significant Accounting Policies (Policy) link:presentationLink link:calculationLink link:definitionLink 2404402 - Disclosure - Summary of Significant Accounting Policies (Narrative) (Details) link:presentationLink link:calculationLink link:definitionLink 2105103 - Disclosure - Marketable Securities link:presentationLink link:calculationLink link:definitionLink 2306301 - Disclosure - Marketable Securities (Tables) link:presentationLink link:calculationLink link:definitionLink 2407403 - Disclosure - Marketable Securities (Available-for-Sale Securities) (Details) link:presentationLink link:calculationLink link:definitionLink 2408404 - Disclosure - Marketable Securities (Amortized Cost and Fair Value of Marketable Securities) (Details) link:presentationLink link:calculationLink link:definitionLink 2409405 - Disclosure - Marketable Securities (Narrative) (Details) link:presentationLink link:calculationLink link:definitionLink 2110104 - Disclosure - Revenue Recognition Revenue Recognition (Notes) link:presentationLink link:calculationLink link:definitionLink 2311302 - Disclosure - Revenue Recognition (Tables) link:presentationLink link:calculationLink link:definitionLink 2412406 - Disclosure - Revenue Recognition (Details) link:presentationLink link:calculationLink link:definitionLink 2113105 - Disclosure - Performance Bonds and Guaranty Fund Contributions link:presentationLink link:calculationLink link:definitionLink 2314303 - Disclosure - Performance Bonds and Guaranty Fund Contributions (Tables) link:presentationLink link:calculationLink link:definitionLink 2315304 - Disclosure - Performance Bonds and Guaranty Fund Contributions Reinvested Collateral (Tables) link:presentationLink link:calculationLink link:definitionLink 2416407 - Disclosure - Performance Bonds and Guaranty Fund Contributions (Narrative) (Details) link:presentationLink link:calculationLink link:definitionLink 2417408 - 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 2418409 - Disclosure - Performance Bonds and Guaranty Fund Contributions (Performance Bond Deposits and Security Deposits) (Details) link:presentationLink link:calculationLink link:definitionLink 2419410 - Disclosure - Performance Bonds and Guaranty Fund Contributions Available for Sale Reinvestment Securities (Details) link:presentationLink link:calculationLink link:definitionLink 2120106 - Disclosure - Property link:presentationLink link:calculationLink link:definitionLink 2321305 - Disclosure - Property (Tables) link:presentationLink link:calculationLink link:definitionLink 2422411 - Disclosure - Property (Details) link:presentationLink link:calculationLink link:definitionLink 2123107 - Disclosure - Intangible Assets and Goodwill link:presentationLink link:calculationLink link:definitionLink 2324306 - Disclosure - Intangible Assets and Goodwill (Tables) link:presentationLink link:calculationLink link:definitionLink 2325307 - Disclosure - Intangible Assets and Goodwill Goodwill (Tables) link:presentationLink link:calculationLink link:definitionLink 2426412 - Disclosure - Intangible Assets and Goodwill (Narrative) (Details) link:presentationLink link:calculationLink link:definitionLink 2427413 - Disclosure - Intangible Assets and Goodwill (Components of Intangible Assets) (Details) link:presentationLink link:calculationLink link:definitionLink 2428414 - Disclosure - Intangible Assets and Goodwill Intangible Assets and Goodwill (Useful Lives of Intangible Assets) (Details) link:presentationLink link:calculationLink link:definitionLink 2429415 - Disclosure - Intangible Assets and Goodwill (Future Estimated Amortization Expense) (Details) link:presentationLink link:calculationLink link:definitionLink 2430416 - Disclosure - Intangible Assets and Goodwill Intangible Assets and Goodwill (Components of Goodwill) (Details) link:presentationLink link:calculationLink link:definitionLink 2131108 - Disclosure - Long-term Investments link:presentationLink link:calculationLink link:definitionLink 2432417 - Disclosure - Long-Term Investments (Details) link:presentationLink link:calculationLink link:definitionLink 2133109 - Disclosure - Debt link:presentationLink link:calculationLink link:definitionLink 2334308 - Disclosure - Debt (Tables) link:presentationLink link:calculationLink link:definitionLink 2435418 - Disclosure - Debt (Narrative) (Details) link:presentationLink link:calculationLink link:definitionLink 2436419 - Disclosure - Debt (Schedule of Short-Term and Long-Term Debt) (Details) link:presentationLink link:calculationLink link:definitionLink 2437420 - Disclosure - Debt (Long-Term Debt Maturities at Par Value) (Details) link:presentationLink link:calculationLink link:definitionLink 2138110 - Disclosure - Income Taxes link:presentationLink link:calculationLink link:definitionLink 2339309 - Disclosure - Income Taxes (Tables) link:presentationLink link:calculationLink link:definitionLink 2440421 - Disclosure - Income Taxes (Income Tax Provision) (Details) link:presentationLink link:calculationLink link:definitionLink 2441422 - Disclosure - Income Taxes (Federal Income Tax Rate) (Details) link:presentationLink link:calculationLink link:definitionLink 2442423 - Disclosure - Income Taxes (Deferred Tax Assets (Liabilities) ) (Details) link:presentationLink link:calculationLink link:definitionLink 2443424 - Disclosure - Income Taxes (Summary Of Unrecognized Tax Benefits) (Details) link:presentationLink link:calculationLink link:definitionLink 2444425 - Disclosure - Income Taxes (Reconciliation Of Unrecognized Tax Benefits) (Details) link:presentationLink link:calculationLink link:definitionLink 2445426 - Disclosure - Income Taxes Income Taxes (Narrative) (Details) link:presentationLink link:calculationLink link:definitionLink 2146111 - Disclosure - Employee Benefit Plans link:presentationLink link:calculationLink link:definitionLink 2347310 - Disclosure - Employee Benefit Plans (Tables) link:presentationLink link:calculationLink link:definitionLink 2448427 - Disclosure - Employee Benefit Plans (Narrative) (Details) link:presentationLink link:calculationLink link:definitionLink 2449428 - Disclosure - Employee Benefit Plans (Summary of the change in projected benefit obligation) (Details) link:presentationLink link:calculationLink link:definitionLink 2450429 - Disclosure - Employee Benefit Plans (Change in Plan Assets) (Details) link:presentationLink link:calculationLink link:definitionLink 2451430 - Disclosure - Employee Benefit Plans (Fair Value of Plan Assets) (Details) link:presentationLink link:calculationLink link:definitionLink 2452431 - Disclosure - Employee Benefit Plans (Components of Net Pension Expense) (Details) link:presentationLink link:calculationLink link:definitionLink 2453432 - Disclosure - Employee Benefit Plans (Asset Allocation for the Plan) (Details) link:presentationLink link:calculationLink link:definitionLink 2454433 - Disclosure - Employee Benefit Plans (Accumulated Other Comprehensive Income (Loss), of the Prior Service Costs and Actuarial Losses) (Details) link:presentationLink link:calculationLink link:definitionLink 2455434 - Disclosure - Employee Benefit Plans (Anticipated Benefit Payments from the Plan in Future Years) (Details) link:presentationLink link:calculationLink link:definitionLink 2156112 - Disclosure - Commitments link:presentationLink link:calculationLink link:definitionLink 2357311 - Disclosure - Commitments (Tables) link:presentationLink link:calculationLink link:definitionLink 2458435 - Disclosure - Leases and Other Commitments (Narrative) (Details) link:presentationLink link:calculationLink link:definitionLink 2459436 - Disclosure - Leases and Other Commitments Lease Costs (Details) link:presentationLink link:calculationLink link:definitionLink 2460437 - Disclosure - Leases and Other Commitments Supplemental Cash Flow Information-Leases (Details) link:presentationLink link:calculationLink link:definitionLink 2461438 - Disclosure - Leases and Other Commitments Supplemental Balance Sheet Information-Leases (Details) link:presentationLink link:calculationLink link:definitionLink 2462439 - Disclosure - Leases and Other Commitments Operating Leases Future Minimum Payments Due (Details) link:presentationLink link:calculationLink link:definitionLink 2463440 - Disclosure - Leases and Other Commitments Capital Lease Future Minimum Payments (Details) link:presentationLink link:calculationLink link:definitionLink 2464441 - Disclosure - Commitments (Non-Cancelable Operating Leases and Contractual Obligations) (Details) link:presentationLink link:calculationLink link:definitionLink 2165113 - Disclosure - Contingencies link:presentationLink link:calculationLink link:definitionLink 2166114 - Disclosure - Guarantees link:presentationLink link:calculationLink link:definitionLink 2467442 - Disclosure - Guarantees (Details) link:presentationLink link:calculationLink link:definitionLink 2168115 - Disclosure - Redeemable Non-Controlling Interest link:presentationLink link:calculationLink link:definitionLink 2369312 - Disclosure - Redeemable Non-Controlling Interest (Tables) link:presentationLink link:calculationLink link:definitionLink 2470443 - Disclosure - Redeemable Non-Controlling Interest (Details) link:presentationLink link:calculationLink link:definitionLink 2471444 - Disclosure - Redeemable Non-Controlling Interest Rollforward Table (Details) link:presentationLink link:calculationLink link:definitionLink 2172116 - Disclosure - Capital Stock link:presentationLink link:calculationLink link:definitionLink 2373313 - Disclosure - Capital Stock (Tables) link:presentationLink link:calculationLink link:definitionLink 2474445 - Disclosure - Capital Stock (Narrative) (Details) link:presentationLink link:calculationLink link:definitionLink 2475446 - Disclosure - Capital Stock (Capital stock) (Details) link:presentationLink link:calculationLink link:definitionLink 2176117 - Disclosure - Stock-Based Payments link:presentationLink link:calculationLink link:definitionLink 2377314 - Disclosure - Stock-Based Payments (Tables) link:presentationLink link:calculationLink link:definitionLink 2478447 - Disclosure - Stock-Based Payments (Narrative) (Details) link:presentationLink link:calculationLink link:definitionLink 2479448 - Disclosure - Stock-Based Payments (Compensation Expense And Income Tax Benefit Recognized) (Details) link:presentationLink link:calculationLink link:definitionLink 2480449 - Disclosure - Stock-Based Payments (Stock Option Activity) (Details) link:presentationLink link:calculationLink link:definitionLink 2481450 - Disclosure - Stock-Based Payments (Restricted Stock Activity) (Details) link:presentationLink link:calculationLink link:definitionLink 2182118 - Disclosure - Accumulated Other Comprehensive Income (Loss) link:presentationLink link:calculationLink link:definitionLink 2383315 - Disclosure - Accumulated Other Comprehensive Income (Loss) (Tables) link:presentationLink link:calculationLink link:definitionLink 2484451 - Disclosure - Accumulated Other Comprehensive Income (Loss) (Schedule of Accumulated Other Comprehensive Income) (Details) link:presentationLink link:calculationLink link:definitionLink 2185119 - Disclosure - Fair Value Measurements link:presentationLink link:calculationLink link:definitionLink 2386316 - Disclosure - Fair Value Measurements (Tables) link:presentationLink link:calculationLink link:definitionLink 2487452 - Disclosure - Fair Value Measurements (Financial Instruments Measured at Fair Value on a Recurring Basis) (Details) link:presentationLink link:calculationLink link:definitionLink 2488453 - Disclosure - Fair Value Measurements (Debt Instruments) (Details) link:presentationLink link:calculationLink link:definitionLink 2489454 - Disclosure - Fair Value Measurements (Narrative) (Details) link:presentationLink link:calculationLink link:definitionLink 2190120 - Disclosure - Earnings Per Share link:presentationLink link:calculationLink link:definitionLink 2391317 - Disclosure - Earnings Per Share (Tables) link:presentationLink link:calculationLink link:definitionLink 2492455 - Disclosure - Earnings Per Share (Basic and Diluted Earnings Per Share) (Details) link:presentationLink link:calculationLink link:definitionLink 2193121 - Disclosure - Quarterly Information (Unaudited) link:presentationLink link:calculationLink link:definitionLink 2394318 - Disclosure - Quarterly Information (Unaudited) (Tables) link:presentationLink link:calculationLink link:definitionLink 2495456 - Disclosure - Quarterly Information (Unaudited) (Details) link:presentationLink link:calculationLink link:definitionLink 2196122 - Disclosure - Subsequent Events link:presentationLink link:calculationLink link:definitionLink 2497457 - Disclosure - Subsequent Events (Details) link:presentationLink link:calculationLink link:definitionLink 2198123 - Disclosure - Schedule II—Valuation and Qualifying Accounts link:presentationLink link:calculationLink link:definitionLink 2499458 - Disclosure - Schedule II—Valuation and Qualifying Accounts Schedule II—Valuation and Qualifying Accounts (Details) link:presentationLink link:calculationLink link:definitionLink