Derivative Financial Instruments (Schedule Of Derivatives, Location In Consolidated Balance Sheets) (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Derivatives, Fair Value [Line Items]
Derivative Liabilities, Current	$ 31,069	$ 23,117
Derivative Liabilities, Noncurrent	34,509	84,973
Interest Rate Swap Contracts [Member]
Derivatives, Fair Value [Line Items]
Derivative Liability, Total	65,578	108,090
Interest Rate Swap Contracts [Member] \| Derivatives Designated As Hedging Instruments [Member]
Derivatives, Fair Value [Line Items]
Derivative Liability, Total	65,578	108,090
Interest Rate Swap Contracts [Member] \| Derivatives Designated As Hedging Instruments [Member] \| Current Portion Of Other Long-Term Liabilities [Member]
Derivatives, Fair Value [Line Items]
Derivative Liabilities, Current	31,069	23,117
Interest Rate Swap Contracts [Member] \| Derivatives Designated As Hedging Instruments [Member] \| Other Long-Term Liabilities [Member]
Derivatives, Fair Value [Line Items]
Derivative Liabilities, Noncurrent	$ 34,509	$ 84,973

Fair value, after the effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes assets not subject to a master netting arrangement and not elected to be offset.

+ References+ Details

Fair value, after the effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset, expected to be settled within one year or normal operating cycle, if longer. Includes assets not subject to a master netting arrangement and not elected to be offset.

+ References+ Details

- Definition

Fair value, after the effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset, expected to be settled after one year or the normal operating cycle, if longer. Includes assets not subject to a master netting arrangement and not elected to be offset.

+ References+ Details