UNAUDITED CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS' EQUITY - USD ($) $ in Thousands	Total	Common Shares	Additional Paid-in Capital	Accumulated Deficit	Treasury Shares	Accumulated Other Comprehensive Income (Loss)	Noncontrolling Interest
Beginning balance at Dec. 31, 2022	$ 303,701	$ 0	$ 1,624,512	$ (930,123)	$ (9,063)	$ (385,187)	$ 3,562
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	(2,144)			(1,890)			(254)
Currency translation adjustment	(95)					(163)	68
Dividends paid	(203)						(203)
Common shares repurchased	(7,970)			(7,970)
Share-based compensation	2,044		2,044
Ending balance at Jun. 30, 2023	295,333	0	1,626,556	(939,983)	(9,063)	(385,350)	3,173
Beginning balance at Mar. 31, 2023	292,177	0	1,625,379	(940,247)	(9,063)	(387,361)	3,469
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	4,167			4,463			(296)
Currency translation adjustment	2,081					2,011	70
Dividends paid	(70)						(70)
Common shares repurchased	(4,199)			(4,199)
Share-based compensation	1,177		1,177
Ending balance at Jun. 30, 2023	295,333	0	1,626,556	(939,983)	(9,063)	(385,350)	3,173
Beginning balance at Dec. 31, 2023	323,038	0	1,628,972	(919,023)	(9,063)	(380,715)	2,867
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	2,291			3,094			(803)
Currency translation adjustment	(8,610)					(8,514)	(96)
Dividends paid	(7,373)			(7,368)			(5)
Common shares repurchased	(9,852)			(9,852)
Excise tax on common shares repurchased	(197)			(197)
Share-based compensation	91		1,158		(1,067)
Ending balance at Jun. 30, 2024	$ 299,388	$ 0	1,630,130	(933,346)	(10,130)	(389,229)	1,963
Beginning balance (in shares) at Dec. 31, 2023	14,680,081	14,680,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Share-based compensation (in shares)		104,000
Common shares repurchased (in shares)		(407,000)
Ending balance (in shares) at Jun. 30, 2024	14,376,593	14,377,000
Beginning balance at Mar. 31, 2024	$ 300,110	$ 0	1,629,521	(931,135)	(10,130)	(390,877)	2,731
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	7,487			8,227			(740)
Currency translation adjustment	1,621					1,648	(27)
Dividends paid	(3,662)			(3,661)			(1)
Common shares repurchased	(6,644)			(6,644)
Excise tax on common shares repurchased	(133)			(133)
Share-based compensation	609		609
Ending balance at Jun. 30, 2024	$ 299,388	$ 0	$ 1,630,130	$ (933,346)	$ (10,130)	$ (389,229)	$ 1,963
Ending balance (in shares) at Jun. 30, 2024	14,376,593	14,377,000