Consolidated Statements of Comprehensive Income (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Statement of Comprehensive Income [Abstract]
Net income (loss)	$ 14,082	$ (132,079)	$ 10,548
Change in fair value of derivatives, net of income tax (expense) benefit of $309, $2,079 and ($2,388) respectively	(1,617)	(3,510)	5,120
Comprehensive income (loss)	$ 12,465	$ (135,589)	$ 15,668