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Disclosure - Securities Available For Sale (Details Of Other Than Temporary Losses) (Details) link:presentationLink link:calculationLink link:definitionLink 40702 - Disclosure - Accounts Receivable, Net Of Allowance (Schedule Of Accounts Receivable) (Details) link:presentationLink link:calculationLink link:definitionLink 40904 - Disclosure - Debt (Schedule Of Maturities Of Debt And Capital Lease) (Details) link:presentationLink link:calculationLink link:definitionLink 40905 - Disclosure - Debt (Schedule Of Interest Expense, Net) (Details) link:presentationLink link:calculationLink link:definitionLink 41001 - Disclosure - Lease Obligations (Schedule Of Future Minimum Rental Payments For Operating Leases And Lease Payments For Capital Leases) (Details) link:presentationLink link:calculationLink link:definitionLink 41104 - Disclosure - Stock-Based Compensation And Other Employee Benefit Plans (Summary Of Stock-Based Compensation Expense And Related Tax Benefit) (Details) link:presentationLink link:calculationLink link:definitionLink 41402 - 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Disclosure - Quarterly Information (Unaudited) link:presentationLink link:calculationLink link:definitionLink 12001 - Disclosure - Supplemental Guarantor Financial Information link:presentationLink link:calculationLink link:definitionLink 12101 - Disclosure - Schedule II - Valuation And Qualifying Accounts link:presentationLink link:calculationLink link:definitionLink 20102 - Disclosure - Business, Basis Of Presentation And Significant Accounting Policies (Policy) link:presentationLink link:calculationLink link:definitionLink 21302 - Disclosure - Common Stock Activity (Policy) link:presentationLink link:calculationLink link:definitionLink 21402 - Disclosure - Income Taxes (Policy) link:presentationLink link:calculationLink link:definitionLink 30203 - Disclosure - Earnings Per Share (Tables) link:presentationLink link:calculationLink link:definitionLink 30303 - Disclosure - Acquisitions And Other Investments (Tables) link:presentationLink link:calculationLink link:definitionLink 30403 - 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Disclosure - Goodwill And Other Intangible Assets (Narrative) (Details) link:presentationLink link:calculationLink link:definitionLink 40403 - Disclosure - Goodwill And Other Intangible Assets (Rollforward Of Goodwill And Other Intangible Assets) (Details) link:presentationLink link:calculationLink link:definitionLink 40501 - Disclosure - Fair Value Of Financial Instruments (Narrative) (Details) link:presentationLink link:calculationLink link:definitionLink 40502 - Disclosure - Fair Value Of Financial Instruments (Schedule Of Carrying Amounts And Estimated Fair Values Of Financial Instruments) (Details) link:presentationLink link:calculationLink link:definitionLink 40503 - Disclosure - Fair Value Of Financial Instruments (Schedule Of Fair Values Of Financial Assets And Liabilities Measured On Recurring Basis) (Details) link:presentationLink link:calculationLink link:definitionLink 40504 - Disclosure - Fair Value Of Financial Instruments (Reconciliation Of Assets And Liabilities Measured At Fair Value On Recurring Basis, Level 3) (Details) link:presentationLink link:calculationLink link:definitionLink 40601 - Disclosure - Securities Available For Sale (Narrative) (Details) link:presentationLink link:calculationLink link:definitionLink 40602 - Disclosure - Securities Available For Sale (Fair Value Of Auction Rate Securities) (Details) link:presentationLink link:calculationLink link:definitionLink 40603 - Disclosure - Securities Available For Sale (Details Of Securities Sold) (Details) link:presentationLink link:calculationLink link:definitionLink 40605 - Disclosure - Securities Available For Sale (Auction Rate Securities Reconciliation Of Cost Basis To Fair Value) (Details) link:presentationLink link:calculationLink link:definitionLink 40701 - Disclosure - Accounts Receivable, Net Of Allowance (Narrative) (Details) link:presentationLink link:calculationLink link:definitionLink 40703 - Disclosure - Accounts Receivable, Net Of Allowance (Schedule Of Allowance For Doubtful Accounts) (Details) link:presentationLink link:calculationLink link:definitionLink 40801 - Disclosure - Property And Equipment, Net (Narrative) (Details) link:presentationLink link:calculationLink link:definitionLink 40802 - 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