Annual report pursuant to Section 13 and 15(d)

Derivative Financial Instruments (Summary Of Derivative Instruments By Hedge Designation) (Details)

v2.4.0.6
Derivative Financial Instruments (Summary Of Derivative Instruments By Hedge Designation) (Details) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2011
Dec. 31, 2010
Dec. 31, 2009
Derivative Financial Instruments [Abstract]      
Realized loss reclassified from accumulated other comprehensive loss to interest expense $ (10,516) $ (6,900) $ (9,687)
Realized loss reclassified to interest expense 10,516 6,900 9,687
Unrealized (loss) gain from changes in the fair value of the effective portion of the interest rate swaps (10,517) (5,889) 4,210
(Loss) Gain included in other comprehensive income (loss) $ (1) $ 1,011 $ 13,897