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Document - Organization and Business link:presentationLink link:calculationLink link:definitionLink 2101102 - Disclosure - Summary of Significant Accounting Policies link:presentationLink link:calculationLink link:definitionLink 2202201 - Disclosure - Summary of Significant Accounting Policies (Policies) link:presentationLink link:calculationLink link:definitionLink 2303301 - Disclosure - Summary of Significant Accounting Policies (Tables) link:presentationLink link:calculationLink link:definitionLink 2404401 - Disclosure - Summary of Significant Accounting Policies (Narrative) (Details) link:presentationLink link:calculationLink link:definitionLink 2405402 - Disclosure - Summary of Significant Accounting Policies (Summary On Estimated Useful Life Of Property, Plant And Equipment) (Details) link:presentationLink link:calculationLink link:definitionLink 2406403 - Disclosure - Summary of Significant Accounting Policies (Allocation Of Stock-Based Compensation Expense) (Details) link:presentationLink link:calculationLink link:definitionLink 2107103 - Disclosure - Revenues (Notes) link:presentationLink link:calculationLink link:definitionLink 2308302 - Disclosure - Revenues (Tables) link:presentationLink link:calculationLink link:definitionLink 2409404 - Disclosure - Revenues (Details) link:presentationLink link:calculationLink link:definitionLink 2410405 - Disclosure - Revenues Contract Balances (Details) link:presentationLink link:calculationLink link:definitionLink 2411406 - Disclosure - Revenues Costs to Obtain Contracts with Customers (Details) link:presentationLink link:calculationLink link:definitionLink 2112104 - Disclosure - Leases (Notes) link:presentationLink link:calculationLink link:definitionLink 2313303 - Disclosure - Leases (Tables) link:presentationLink link:calculationLink link:definitionLink 2414407 - Disclosure - Leases (Details) link:presentationLink link:calculationLink link:definitionLink 2115105 - Disclosure - Net Income Per Common Share link:presentationLink link:calculationLink link:definitionLink 2316304 - Disclosure - Net Income Per Common Share (Tables) link:presentationLink link:calculationLink link:definitionLink 2417408 - Disclosure - Net Income Per Common Share (Details) link:presentationLink link:calculationLink link:definitionLink 2118106 - Disclosure - Long-Term Debt link:presentationLink link:calculationLink link:definitionLink 2319305 - Disclosure - Long-Term Debt (Tables) link:presentationLink link:calculationLink link:definitionLink 2420409 - Disclosure - Long-Term Debt (Schedule Of Debt Instruments) (Details) link:presentationLink link:calculationLink link:definitionLink 2421410 - Disclosure - Long-Term Debt (Schedule Of Aggregate Maturities For Debt Outstanding) (Details) link:presentationLink link:calculationLink link:definitionLink 2122107 - Disclosure - Acquisitions link:presentationLink link:calculationLink link:definitionLink 2323306 - Disclosure - Acquisitions (Tables) link:presentationLink link:calculationLink link:definitionLink 2424411 - Disclosure - Acquisitions (Narrative) (Details) link:presentationLink link:calculationLink link:definitionLink 2425412 - 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Disclosure - Supplementary Balance Sheet Information (Composition Of Goodwill And Intangible Assets) (Details) link:presentationLink link:calculationLink link:definitionLink 2433418 - Disclosure - Supplementary Balance Sheet Information (Changes In Goodwill Amount) (Details) link:presentationLink link:calculationLink link:definitionLink 2434419 - Disclosure - Supplementary Balance Sheet Information (Components Of Accounts Payable And Accrued Liabilities) (Details) link:presentationLink link:calculationLink link:definitionLink 2435420 - Disclosure - Supplementary Balance Sheet Information (Components Of Other Long-Term Liabilities) (Details) link:presentationLink link:calculationLink link:definitionLink 2136109 - Disclosure - Fair Value Measurements link:presentationLink link:calculationLink link:definitionLink 2337308 - Disclosure - Fair Value Measurements (Tables) link:presentationLink link:calculationLink link:definitionLink 2438421 - Disclosure - Fair Value Measurements (Details) link:presentationLink link:calculationLink link:definitionLink 2139110 - Disclosure - Income Taxes link:presentationLink link:calculationLink link:definitionLink 2340309 - Disclosure - Income Taxes (Tables) link:presentationLink link:calculationLink link:definitionLink 2441422 - Disclosure - Income Taxes (Narrative) (Details) link:presentationLink link:calculationLink link:definitionLink 2442423 - Disclosure - Income Taxes (Components Of Deferred Tax Liabilities And Assets) (Details) link:presentationLink link:calculationLink link:definitionLink 2443424 - Disclosure - Income Taxes (Components Of Provision (Benefit) For Income Taxes) (Details) link:presentationLink link:calculationLink link:definitionLink 2444425 - Disclosure - Income Taxes (Reconciliation Of Effective Income Tax Rate And Effective Rate From Continuing Operation) (Details) link:presentationLink link:calculationLink link:definitionLink 2445426 - Disclosure - Income Taxes (Reconciliation Of Unrecognized Tax Benefits) (Details) link:presentationLink link:calculationLink link:definitionLink 2446427 - Disclosure - Income Taxes Components of Income before Income Taxes (Details) link:presentationLink link:calculationLink link:definitionLink 2447428 - Disclosure - Income Taxes Presentation of Net Deferred Tax Liabilities and Assets (Details) link:presentationLink link:calculationLink link:definitionLink 2148111 - Disclosure - Commitments and Contingencies link:presentationLink link:calculationLink link:definitionLink 2349310 - Disclosure - Commitments and Contingencies (Tables) link:presentationLink link:calculationLink link:definitionLink 2450429 - Disclosure - Commitments and Contingencies (Narrative) (Details) link:presentationLink link:calculationLink link:definitionLink 2451430 - Disclosure - Commitments and Contingencies (Future Minimum Lease Payment) (Details) link:presentationLink link:calculationLink link:definitionLink 2152112 - Disclosure - Segment Information link:presentationLink link:calculationLink link:definitionLink 2353311 - Disclosure - Segment Information (Tables) link:presentationLink link:calculationLink link:definitionLink 2454431 - Disclosure - Segment Information (Details) link:presentationLink link:calculationLink link:definitionLink 2455432 - Disclosure - Segment Information Geographic Information (Details) link:presentationLink link:calculationLink link:definitionLink 2156113 - Disclosure - Stock Repurchase Plan link:presentationLink link:calculationLink link:definitionLink 2457433 - Disclosure - Stock Repurchase Plan (Details) link:presentationLink link:calculationLink link:definitionLink 2158114 - Disclosure - Stock Compensation Plan link:presentationLink link:calculationLink link:definitionLink 2359312 - Disclosure - Stock Compensation Plan (Tables) link:presentationLink link:calculationLink link:definitionLink 2460434 - Disclosure - Stock Compensation Plan (Narrative) (Details) link:presentationLink link:calculationLink link:definitionLink 2461435 - Disclosure - Stock Compensation Plan (Schedule Of Share Based Compensation Valuation Model) (Details) link:presentationLink link:calculationLink link:definitionLink 2462436 - Disclosure - Stock Compensation Plan (Schedule Of Share Based Compensation Option And SARs Award Activity) (Details) link:presentationLink link:calculationLink link:definitionLink 2463437 - Disclosure - Stock Compensation Plan (Schedule of Share Based Compensation SARs Activity) (Details) link:presentationLink link:calculationLink link:definitionLink 2464438 - Disclosure - Stock Compensation Plan (Schedule Of Share Based Compensation Restricted Stock Units Activity) (Details) link:presentationLink link:calculationLink link:definitionLink 2165115 - Disclosure - Retirement and Profit Sharing Plans link:presentationLink link:calculationLink link:definitionLink 2466439 - Disclosure - Retirement and Profit Sharing Plans (Details) link:presentationLink link:calculationLink link:definitionLink 2167116 - Disclosure - Subsequent Events link:presentationLink link:calculationLink link:definitionLink 2368313 - Disclosure - Subsequent Events (Tables) link:presentationLink link:calculationLink link:definitionLink 2469440 - Disclosure - Subsequent Events (Details) link:presentationLink link:calculationLink link:definitionLink