CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Statement of Comprehensive Income [Abstract]
Consolidated net loss	$ (14,048)	$ (51,270)	$ (15,816)	$ (52,646)
Other comprehensive loss, before income tax:
Unrealized foreign currency translation (loss) gain	(9)	1	(87)	73
Unrealized loss on interest rate contracts	0	(624)	0	(974)
Reclassification adjustment to statement of operations	0	16	0	28
Other comprehensive income, before income tax	(9)	(607)	(87)	(873)
Taxes on other comprehensive loss:
Income tax effect related to unrealized foreign currency translation gain	0	0	0	18
Income tax effect related to unrealized loss on interest rate contracts	0	(158)	0	(246)
Income tax effect related to reclassification adjustment to statement of operations	0	4	0	7
Valuation allowance adjustment	0	221	0	221
Taxes on other comprehensive income	0	67	0	0
Other comprehensive loss, net of tax	(9)	(674)	(87)	(873)
Comprehensive loss	(14,057)	(51,944)	(15,903)	(53,519)
Less: Net income attributable to noncontrolling interest in subsidiary	103	404	424	795
Comprehensive loss attributable to common shareholders	$ (14,160)	$ (52,348)	$ (16,327)	$ (54,314)