Condensed Consolidated Statements of Changes in Stockholders' Equity - USD ($) $ in Thousands	Total	Common Stock	Additional paid-in capital	Warrants	Accumulated deficit	Accumulated other comprehensive income (loss)
Beginning balance (in shares) at Dec. 31, 2019		42,313,000
Beginning balance at Dec. 31, 2019	$ 353,277	$ 423	$ 501,615	$ 1,076	$ (105,283)	$ (44,554)
Stockholders' Equity Attributable to Noncontrolling Interest [Roll Forward]
Net loss	(248,191)				(248,191)
Dividends accrued for preferred stock	(2,951)		(2,951)
Share-based compensation expense (in shares)		452,000
Share-based compensation expense	1,296	$ 5	1,291
Restricted shares forgiven for taxes (in shares)		(8,000)
Restricted shares forgiven for taxes	(30)		(30)
Change in fair value of interest rate swap, net of tax	(11,209)					(11,209)
Reclassification of interest rate swap settlement to net income (loss), net of tax	1,052					1,052
Foreign currency translation loss	(14,342)					(14,342)
Ending balance (in shares) at Mar. 31, 2020		42,757,000
Ending balance at Mar. 31, 2020	78,902	$ 428	499,925	$ 1,076	(353,474)	(69,053)
Beginning balance (in shares) at Dec. 31, 2020		42,686,000
Beginning balance at Dec. 31, 2020	254,152	$ 427	493,332		(205,875)	(33,732)
Stockholders' Equity Attributable to Noncontrolling Interest [Roll Forward]
Net loss	(4,913)				(4,913)
Dividends accrued for preferred stock	(14,529)		(14,529)
Share-based compensation expense (in shares)		413,000
Share-based compensation expense	886	$ 4	882
Restricted shares forgiven for taxes (in shares)		(50,000)
Restricted shares forgiven for taxes	(345)	$ (1)	(344)
Change in fair value of interest rate swap, net of tax	0
Reclassification of interest rate swap settlement to net income (loss), net of tax	2,851					2,851
Foreign currency translation loss	(3,347)					(3,347)
Ending balance (in shares) at Mar. 31, 2021		43,049,000
Ending balance at Mar. 31, 2021	$ 234,755	$ 430	$ 479,341		$ (210,788)	$ (34,228)