Condensed Consolidated Statements of Shareholders' Equity - USD ($) shares in Thousands, $ in Thousands	Total	Cumulative Effect, Period of Adoption, Adjustment	Common Stock	Additional Paid-in Capital	Retained Earnings (Deficit)	Retained Earnings (Deficit) Cumulative Effect, Period of Adoption, Adjustment	Accumulated Other Comprehensive Loss
Beginning balance (in shares) at Dec. 31, 2019			30,519
Beginning balance at Dec. 31, 2019	$ 436,670	$ (1,034)	$ 9,153	$ 409,034	$ 48,673	$ (1,034)	$ (30,190)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	(199,727)				(199,727)
Foreign currency translation adjustment, net of tax	(9,861)						(9,861)
Foreign currency hedge, net of tax	200						200
Non-cash compensation	1,530			1,530
Net settlement of vested stock awards (in shares)			109
Net settlement of vested stock awards	(349)		$ 30	(379)
Ending balance (in shares) at Mar. 31, 2020			30,628
Ending Balance at Mar. 31, 2020	227,429		$ 9,183	410,185	(152,088)		(39,851)
Beginning balance (in shares) at Dec. 31, 2020			30,874
Beginning balance at Dec. 31, 2020	214,603		$ 9,257	422,589	(189,565)		(27,678)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	(34,291)				(34,291)
Foreign currency translation adjustment, net of tax	319						319
Non-cash compensation	2,330			2,330
Net settlement of vested stock awards (in shares)			19
Net settlement of vested stock awards	(101)		$ 6	(107)
Ending balance (in shares) at Mar. 31, 2021			30,893
Ending Balance at Mar. 31, 2021	$ 182,860		$ 9,263	$ 424,812	$ (223,856)		$ (27,359)