v2.3.0.11
Derivative Instruments and Hedging Activities (Fair Value Of Interest Rate Swap Agreements) (Details) (USD $)
In Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2011
Jun. 30, 2010
Jun. 30, 2011
Jun. 30, 2010
Derivative Instruments And Hedging Activities        
Gain (loss) in Accumulated Other Comprehensive Income $ (7,908) $ 75 $ (6,427) $ (1,161)
Loss reclassified to interest expense (1,224) (2,748) (3,270) (5,775)
Gain (loss) from hedge ineffectiveness     $ (225)