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Condensed Consolidated Statements of Other Comprehensive Income (USD $)
In Thousands, unless otherwise specified
3 Months Ended
Mar. 31, 2012
Mar. 31, 2011
Net income $ 5,738 $ 24,767
Other comprehensive income:    
Unrealized gain on derivative financial instruments   94
Amortized gain on derivative financial instruments   155
Total other comprehensive income   249
Comprehensive income $ 5,738 $ 25,016