CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) (Unaudited) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Statement Of Income And Comprehensive Income [Abstract]
Net (loss) income	$ (5,725)	$ (23,846)	$ (163,632)	$ 21,911
Other comprehensive (loss) income:
Foreign currency translation adjustments	(574)	(60)	(35)	(1,622)
Change in fair value of derivatives qualifying as cash flow hedges	(305)	(1,602)	(131)	(2,695)
Other comprehensive (loss) income before income tax (expense) benefit	(879)	(1,662)	(166)	(4,317)
Income tax (expense) benefit related to items in other comprehensive (loss) income	80	416	34	850
Total other comprehensive income (loss)	(799)	(1,246)	(132)	(3,467)
Comprehensive (loss) income	(6,524)	(25,092)	(163,764)	18,444
Comprehensive loss attributable to non-controlling interests	0	4	424	3,494
Comprehensive (loss) income, net	$ (6,524)	$ (25,088)	$ (163,340)	$ 21,938

Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income, attributable to parent entity. Excludes changes in equity resulting from investments by owners and distributions to owners.

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