Consolidated Statements of Comprehensive Income (Loss) (USD $) In Thousands, unless otherwise specified	3 Months Ended	9 Months Ended		15 Months Ended
	Sep. 30, 2012	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012
Net income (loss)	$ (1,105)	$ 3,182	$ 32,445	$ 8,406
Other comprehensive (loss) income:
Change in fair value of derivatives designated as hedges, net of tax	(1,268)	(1,345)	11,587	8,337
Total comprehensive income (loss)	$ (2,373)	$ 1,837	$ 44,032	$ 16,743