CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY (UNAUDITED) - USD ($) $ in Thousands	Total	Common Stock	Additional Paid-in Capital	Retained Earnings	Accumulated Other Comprehensive Income/(loss)	Treasury Stock
Beginning balance (in shares) at Dec. 31, 2021		39,508,340
Beginning balance at Dec. 31, 2021	$ 693,156	$ 40	$ 395,742	$ 756,137	$ (89,474)	$ (369,289)
Treasury stock, beginning balance (in shares) at Dec. 31, 2021						(6,216,858)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock issued against stock-based compensation plans (in shares)		285,814
Stock issued against stock-based compensation plans	0
Stock-based compensation	$ 11,224		11,224
Acquisition of treasury stock (in shares)	(221,333)					(248,552)
Acquisition of treasury stock	$ (31,385)					$ (31,385)
Other comprehensive income (loss)	(8,832)				(8,832)
Net income	36,178			36,178
Ending balance (in shares) at Mar. 31, 2022		39,794,154
Ending balance at Mar. 31, 2022	$ 700,341	$ 40	406,966	792,315	(98,306)	$ (400,674)
Treasury stock, ending balance (in shares) at Mar. 31, 2022						(6,465,410)
Beginning balance (in shares) at Dec. 31, 2022	33,234,444	39,987,976
Beginning balance at Dec. 31, 2022	$ 758,179	$ 40	445,108	899,105	(144,143)	$ (441,931)
Treasury stock, beginning balance (in shares) at Dec. 31, 2022	(6,753,532)					(6,753,532)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock issued against stock-based compensation plans (in shares)		346,392
Stock issued against stock-based compensation plans	$ 1,012		1,012
Stock-based compensation	$ 14,407		14,407
Acquisition of treasury stock (in shares)	(221,025)					(259,381)
Acquisition of treasury stock	$ (42,363)					$ (42,363)
Other comprehensive income (loss)	12,656				12,656
Net income	$ 51,331			51,331
Ending balance (in shares) at Mar. 31, 2023	33,321,455	40,334,368
Ending balance at Mar. 31, 2023	$ 795,222	$ 40	$ 460,527	$ 950,436	$ (131,487)	$ (484,294)
Treasury stock, ending balance (in shares) at Mar. 31, 2023	(7,012,913)					(7,012,913)