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Hedging Activities (Schedule Of Derivative Instrument Hedging Activities Cumulative Other Comprehensive Income) (Details) (USD $)
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12 Months Ended | |||
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Dec. 31, 2011
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Dec. 31, 2010
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Dec. 31, 2009
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Dec. 31, 2008
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| Hedging Activities [Abstract] | ||||
| Cumulative hedging activities included in accumulated other comprehensive income | $ 1,576,000 | $ (4,720,000) | $ (18,736,000) | |
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- Definition
Cumulative hedging activities included in accumulated other comprehensive income. No definition available.
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- Details
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