Fair Value Of Financial Instruments (Schedule Of Carrying Value And Fair Value Of Financial Assets And Liabilities) (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment in marketable securities, Book Value	$ 54us-gaap_MarketableSecuritiesCurrent	$ 55us-gaap_MarketableSecuritiesCurrent
Interest rate cap asset, Book Value		75us-gaap_DerivativeAssetsNoncurrent
Interest rate swap liability, Book Value	2,177us-gaap_DerivativeLiabilitiesNoncurrent	3,288us-gaap_DerivativeLiabilitiesNoncurrent
Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment in marketable securities, Book Value	54	55
Investment in marketable securities, Fair Value	54	55
Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Interest rate cap asset, Book Value		75
Interest rate cap asset, Fair Value		75
Interest rate swap liability, Book Value	2,177	3,288
Interest rate swap liability, Fair Value	$ 2,177	$ 3,288

Fair value, after the effects of master netting arrangements, of a financial asset or other 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.

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Fair value as of the balance sheet date of all derivative assets designated as interest rate fair value hedging instruments.

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Amount of investments in debt and equity securities, including, but not limited to, held-to-maturity, trading and available-for-sale expected to be converted to cash, sold or exchanged within one year or the normal operating cycle, if longer.

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