CONSOLIDATED STATEMENTS OF CHANGES IN EQUITY - USD ($) $ in Thousands	Total	Common Stock [Member]	Additional paid-in capital [Member]	Retained earnings [Member]	Accumulated other comprehensive income (loss) [Member]	Parent [Member]	Noncontrolling interest [Member]	Treasury Stock, Common
Balance, Beginning (in shares) at Dec. 31, 2021		66,411,784
Balance, Beginning at Dec. 31, 2021	$ (227,172)		$ (562,340)	$ 85,439	$ 246,480	$ (229,300)	$ 2,128	$ 1,121
Net income	24,578			23,922		23,922
Currency translation adjustment, net	17,275				18,457	(18,457)	(1,182)
Temporary Equity, Foreign Currency Translation Adjustments	(17,275)
Pension liability adjustments, net of tax	544				(544)	(544)
Derivative, Gain on Derivative	303				303	303
Stock Issued During Period, Shares, Restricted Stock Award, Gross		212,440
Stock-based compensation	488		(851)			488		1,339
Issuance of treasury stock under 401(k) plan		32,609
Issuance of treasury stock under 401(k) plan	360		360			360
Treasury Stock, Value, Acquired, Cost Method								25,000
Stock Repurchased During Period, Shares		4,032,259
Treasury Stock, Value, Acquired, Par Value Method	(25,000)					(25,000)
Balance, Ending (in shares) at Mar. 31, 2022		62,624,574
Balance, Ending at Mar. 31, 2022	(245,720)		(561,849)	61,517	227,176	(248,374)	2,654	24,782
Net Income (Loss), Including Portion Attributable to Nonredeemable Noncontrolling Interest	24,578
Net Income (Loss) Attributable to Redeemable Noncontrolling Interest							656
Balance, Beginning (in shares) at Dec. 31, 2022		62,843,961
Balance, Beginning at Dec. 31, 2022	(383,138)		(565,546)	(90,863)	251,755	(381,236)	(1,902)	23,418
Net income	33,430			31,838		31,838
Currency translation adjustment, net	6,944				8,039	8,039	(1,095)
Temporary Equity, Foreign Currency Translation Adjustments	6,944
Pension liability adjustments, net of tax	(30)				(30)	(30)
Derivative, Loss on Derivative	(111)				111	111
Stock Issued During Period, Shares, Restricted Stock Award, Gross		322,157
Stock-based compensation	700		(1,303)			700		2,003
Issuance of treasury stock under 401(k) plan		28,733
Issuance of treasury stock under 401(k) plan	429		250			429		179
Treasury Stock, Value, Acquired, Cost Method	$ 1,300							1,293
Stock Repurchased During Period, Shares	109,789	109,789
Treasury Stock, Value, Acquired, Par Value Method	$ (1,293)					(1,293)
Net Income (Loss) Attributable to Nonredeemable Noncontrolling Interest							1,592
Balance, Ending (in shares) at Mar. 31, 2023	63,085,062
Balance, Ending at Mar. 31, 2023	$ (423,207)		$ (564,493)	$ (122,701)	$ 243,857	$ (420,808)	$ (2,399)	$ 22,529
Net Income (Loss), Including Portion Attributable to Nonredeemable Noncontrolling Interest	$ 33,430