Condensed Consolidated Statements of Comprehensive Loss (USD $)
In Thousands, unless otherwise specified
3 Months Ended
Mar. 31, 2014
Mar. 31, 2013
Statement of Comprehensive Income [Abstract]    
Net income (loss) $ 14,239 $ (8,332)
Other comprehensive (loss) income:    
Change in net unrealized losses on cash flow hedges (402) (31)
Net cash flow hedge losses reclassified to operations 323 114
Total comprehensive income (loss) $ 14,160 $ (8,249)