CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) (Unaudited) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016
CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) (Unaudited) [Abstract]
Net income (loss)	$ 55,232	$ (135,515)
Other comprehensive income, net of tax:
Net change in fair value of interest rate swaps, net of tax	0	170
Foreign currency translation adjustment, net of tax	1,458	934
Release of cumulative translation adjustment to loss from discontinued operations due to substantial liquidation of foreign entity	3,044	0
Total other comprehensive income, net of tax	4,502	1,104
Comprehensive income (loss)	$ 59,734	$ (134,411)