CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Statement of Comprehensive Income [Abstract]      
Net income (loss) $ 31,483 $ (79,827) $ (15,867)
Other comprehensive income (loss), net of tax      
Foreign currency translation adjustments (8,828) (4,417) (3,665)
Changes in derivative financial instruments 31 (1,602) (1,032)
Total other comprehensive loss, net of tax (8,797) (6,019) (4,697)
Total comprehensive loss $ 22,686 $ (85,846) $ (20,564)