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)		286,821
Stock issued against stock-based compensation plans	0
Stock-based compensation	$ 24,564		24,564
Acquisition of treasury stock (in shares)	(427,049)					(454,268)
Acquisition of treasury stock	$ (60,191)					$ (60,191)
Other comprehensive income (loss)	(43,900)				(43,900)
Net income	72,024			72,024
Ending balance (in shares) at Jun. 30, 2022		39,795,161
Ending balance at Jun. 30, 2022	685,653	$ 40	420,306	828,161	(133,374)	$ (429,480)
Treasury stock, ending balance (in shares) at Jun. 30, 2022						(6,671,126)
Beginning balance (in shares) at Mar. 31, 2022		39,794,154
Beginning balance at Mar. 31, 2022	700,341	$ 40	406,966	792,315	(98,306)	$ (400,674)
Treasury stock, beginning balance (in shares) at Mar. 31, 2022						(6,465,410)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock issued against stock-based compensation plans (in shares)		1,007
Stock issued against stock-based compensation plans	0
Stock-based compensation	$ 13,340		13,340
Acquisition of treasury stock (in shares)	(205,716)					(205,716)
Acquisition of treasury stock	$ (28,806)					$ (28,806)
Other comprehensive income (loss)	(35,068)				(35,068)
Net income	35,846			35,846
Ending balance (in shares) at Jun. 30, 2022		39,795,161
Ending balance at Jun. 30, 2022	$ 685,653	$ 40	420,306	828,161	(133,374)	$ (429,480)
Treasury stock, ending balance (in shares) at Jun. 30, 2022						(6,671,126)
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)		361,751
Stock issued against stock-based compensation plans	$ 1,098		1,098
Stock-based compensation	$ 25,918		25,918
Acquisition of treasury stock (in shares)	(405,169)					(443,525)
Acquisition of treasury stock	$ (71,376)					$ (71,376)
Other comprehensive income (loss)	19,996				19,996
Net income	$ 100,399			100,399
Ending balance (in shares) at Jun. 30, 2023	33,152,670	40,349,727
Ending balance at Jun. 30, 2023	$ 834,214	$ 40	472,124	999,504	(124,147)	$ (513,307)
Treasury stock, ending balance (in shares) at Jun. 30, 2023	(7,197,057)					(7,197,057)
Beginning balance (in shares) at Mar. 31, 2023		40,334,368
Beginning balance at Mar. 31, 2023	$ 795,222	$ 40	460,527	950,436	(131,487)	$ (484,294)
Treasury stock, beginning balance (in shares) at Mar. 31, 2023						(7,012,913)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock issued against stock-based compensation plans (in shares)		15,359
Stock issued against stock-based compensation plans	86		86
Stock-based compensation	$ 11,511		11,511
Acquisition of treasury stock (in shares)	(184,144)					(184,144)
Acquisition of treasury stock	$ (29,013)					$ (29,013)
Other comprehensive income (loss)	7,340				7,340
Net income	$ 49,068			49,068
Ending balance (in shares) at Jun. 30, 2023	33,152,670	40,349,727
Ending balance at Jun. 30, 2023	$ 834,214	$ 40	$ 472,124	$ 999,504	$ (124,147)	$ (513,307)
Treasury stock, ending balance (in shares) at Jun. 30, 2023	(7,197,057)					(7,197,057)