Consolidated Statements of Comprehensive Income (Loss) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Net income (loss)	$ 8,735	$ 5,073	$ 13,123	$ 4,116
Other comprehensive income (loss), net of tax:
Change in fair value of interest rate swap agreements	(1,139)		(1,770)
Total other comprehensive income (loss)	(1,139)		(1,770)
Comprehensive income (loss)	$ 7,596	$ 5,073	$ 11,353	$ 4,116