Condensed Consolidated Statements of Comprehensive Income (Loss) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Statement Of Income And Comprehensive Income [Abstract]
Net income (loss)	$ 4,816	$ (3,118)
Other comprehensive loss:
Unrealized losses on cash flow hedges, net of tax impact of $175 and $-- for the three months ended March 31, 2016 and 2015, respectively	(317)
Other comprehensive loss	(317)
Comprehensive income (loss)	$ 4,499	$ (3,118)