CONSOLIDATED STATEMENTS OF COMPREHENSIVE (LOSS) INCOME - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Statement of Comprehensive Income [Abstract]
Consolidated net loss	$ (12,142)	$ (55,943)	$ (15,717)
Other comprehensive (loss) income, before income tax:
Unrealized foreign currency translation (loss) gain	(40)	47	(153)
Unrealized loss on interest rate contracts	0	(1,078)	(420)
Unrealized loss on interest rate contracts	0	1,312	186
Other comprehensive income (loss), before income tax	(40)	281	(387)
Other Comprehensive Income (Loss), Tax1 [Abstract]
Income tax effect related to unrealized foreign currency translation gain (loss)	0	26	(31)
Income tax effect related to unrealized loss on interest rate contracts	0	(571)	(107)
Income tax effect related to reclassification adjustment to statement of operations	0	93	48
Valuation allowance adjustment	0	511	0
Taxes on other comprehensive income (loss)	0	59	(90)
Other comprehensive (loss) income, net of tax	(40)	222	(297)
Comprehensive loss	(12,182)	(55,721)	(16,014)
Less: Net income attributable to noncontrolling interest in subsidiary	820	1,770	1,234
Comprehensive loss attributable to common shareholders	$ (13,002)	$ (57,491)	$ (17,248)