Condensed Consolidated Statements of Shareholders' Equity (Deficit) - USD ($) $ in Thousands	Total	Common Stock	Unrecognized Gains (Losses) on Derivative Instruments	Pension Obligations	Cumulative Translation Adjustment	Retained Earnings
Beginning of period at Dec. 31, 2020	$ (21,522)	$ 95,247	$ (1,738)	$ (7,447)	$ (90,261)	$ (17,323)
Beginning of the period (in shares) at Dec. 31, 2020		25,591,930
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	7,637					7,637
Change in unrecognized gains (losses) on derivative instruments, net of tax	101		101
Change in defined benefit plans, net of tax	290			290
Net foreign currency translation adjustment	(16,336)				(16,336)
Common stock issued, net of shares withheld for employee taxes (in shares)		556,867
Stock-based compensation	5,371	$ 5,371
Redeemable preferred 9% dividend and accretion	(25,310)					(25,310)
European non-controlling redeemable equity dividend	(134)					(134)
End of period at Sep. 30, 2021	(49,903)	$ 100,618	(1,637)	(7,157)	(106,597)	(35,130)
End of the period (in shares) at Sep. 30, 2021		26,148,797
Beginning of period at Jun. 30, 2021	(20,555)	$ 98,236	5,247	(7,253)	(97,529)	(19,256)
Beginning of the period (in shares) at Jun. 30, 2021		26,107,462
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	(7,180)					(7,180)
Change in unrecognized gains (losses) on derivative instruments, net of tax	(6,884)		(6,884)
Change in defined benefit plans, net of tax	96			96
Net foreign currency translation adjustment	(9,068)				(9,068)
Common stock issued, net of shares withheld for employee taxes (in shares)		41,335
Stock-based compensation	2,382	$ 2,382
Redeemable preferred 9% dividend and accretion	(8,598)					(8,598)
European non-controlling redeemable equity dividend	(96)					(96)
End of period at Sep. 30, 2021	(49,903)	$ 100,618	(1,637)	(7,157)	(106,597)	(35,130)
End of the period (in shares) at Sep. 30, 2021		26,148,797
Beginning of period at Dec. 31, 2021	$ (70,421)	$ 103,214	(9,051)	(6,133)	(110,790)	(47,661)
Beginning of the period (in shares) at Dec. 31, 2021	26,163,077	26,163,077
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	$ 20,563					20,563
Change in unrecognized gains (losses) on derivative instruments, net of tax	8,329		8,329
Change in defined benefit plans, net of tax	249			249
Net foreign currency translation adjustment	(17,946)				(17,946)
Common stock issued, net of shares withheld for employee taxes (in shares)		853,048
Stock-based compensation	4,754	$ 4,754
Redeemable preferred 9% dividend and accretion	(27,103)					(27,103)
European non-controlling redeemable equity dividend	(42)					(42)
End of period at Sep. 30, 2022	$ (81,617)	$ 107,968	(722)	(5,884)	(128,736)	(54,243)
End of the period (in shares) at Sep. 30, 2022	27,016,125	27,016,125
Beginning of period at Jun. 30, 2022	$ (72,783)	$ 106,078	(7,813)	(5,967)	(120,401)	(44,680)
Beginning of the period (in shares) at Jun. 30, 2022		27,016,125
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	(351)					(351)
Change in unrecognized gains (losses) on derivative instruments, net of tax	7,091		7,091
Change in defined benefit plans, net of tax	83			83
Net foreign currency translation adjustment	(8,335)				(8,335)
Stock-based compensation	1,890	$ 1,890
Redeemable preferred 9% dividend and accretion	(9,192)					(9,192)
European non-controlling redeemable equity dividend	(20)					(20)
End of period at Sep. 30, 2022	$ (81,617)	$ 107,968	$ (722)	$ (5,884)	$ (128,736)	$ (54,243)
End of the period (in shares) at Sep. 30, 2022	27,016,125	27,016,125