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Consolidated Statements of Comprehensive Income (Loss) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2012
Consolidated Statements of Comprehensive Income (Loss)  
Net income $ 1,535
Derivative instruments  
Unrealized losses on derivative instruments (4,311)
Reclassification adjustment for losses included in termination of derivative instruments 10,143
Reclassification adjustment for losses included in net income 6,427
Net gain (loss) recognized in other comprehensive income 12,259
Tax benefit (expense) related to items of other comprehensive income (loss) (4,598)
Other comprehensive income (loss) 7,661
Total comprehensive income $ 9,196