Condensed Consolidated Statements of Changes in Stockholders' Equity (unaudited) - USD ($) $ in Thousands	Total	Restricted Stock Units	Common stock, par value $0.01 per share	Restricted stock units Restricted Stock Units	Additional paid-in capital	Retained earnings	Accumulated other comprehensive income (loss)	Treasury stock, at cost, par value $0.01 per share
Beginning Balance at Dec. 31, 2020			$ 487	$ 59,412	$ 937,025	$ 95,424	$ (25,501)	$ (978,780)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Common stock issued			15		25,626
Restricted stock units recognized, net of forfeitures				8,347
Restricted stock units delivered				(26,434)
Dividends						(1,316)
Net income (loss)	$ 2,084					2,084
Currency translation adjustment, net of tax							(551)
Repurchased		$ (9,500)						(14,544)
Ending Balance at Mar. 31, 2021	81,294		502	41,325	962,651	96,192	(26,052)	(993,324)
Beginning Balance at Dec. 31, 2021	104,935		506	56,495	969,719	132,559	(30,443)	(1,023,901)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Common stock issued			13		18,496
Restricted stock units recognized, net of forfeitures				7,743
Restricted stock units delivered				(18,442)
Dividends						(2,558)
Net income (loss)	(12,106)					(12,106)
Currency translation adjustment, net of tax							1,920
Repurchased		$ (10,900)						(19,832)
Ending Balance at Mar. 31, 2022	$ 80,169		$ 519	$ 45,796	$ 988,215	$ 117,895	$ (28,523)	$ (1,043,733)