Condensed Consolidated Statements of Stockholders' Equity - 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, 2020		43,326,000
Beginning Balance at Dec. 31, 2020	$ 980,943	$ 433	$ 284,007	$ 720,441	$ (10,428)	$ (13,510)
Increase (Decrease) in Stockholders' Equity
Net income	50,387			50,387
Translation adjustment, net of tax	(9,264)				(9,264)
Pension adjustment and other, net of tax	492				492
Cash flow Hedges, net of tax	26				26
Stock-based compensation	6,462		6,462
Shares issued from release of Restricted Stock Units (in shares)		97,000
Shares issued from release of Restricted Stock Units	(5,263)	$ 1	(5,264)
Cash dividends declared on common stock	(9,966)			(9,966)
Common stock issued (in shares)		7,000
Common stock issued	692	$ 1	691
Ending Balance (in shares) at Mar. 31, 2021		43,430,000
Ending Balance at Mar. 31, 2021	1,014,509	$ 435	285,896	760,862	(19,174)	(13,510)
Beginning Balance (in shares) at Dec. 31, 2021		43,217,000
Beginning Balance at Dec. 31, 2021	1,183,998	$ 432	294,330	906,841	(17,605)	0
Increase (Decrease) in Stockholders' Equity
Net income	94,576			94,576
Translation adjustment, net of tax	(3)				(3)
Pension adjustment and other, net of tax	(171)				(171)
Cash flow Hedges, net of tax	(9,946)				(9,946)
Stock-based compensation	4,007		4,007
Shares issued from release of Restricted Stock Units (in shares)		130,000
Shares issued from release of Restricted Stock Units	(9,523)	$ 1	(9,524)
Repurchase of common stock (in shares)		(195,000)
Repurchase of common stock	(21,281)					(21,281)
Cash dividends declared on common stock	(10,806)			(10,806)
Common stock issued (in shares)		7,000
Common stock issued	960	$ 0	960
Ending Balance (in shares) at Mar. 31, 2022		43,159,000
Ending Balance at Mar. 31, 2022	$ 1,231,811	$ 433	$ 289,773	$ 990,611	$ (27,725)	$ (21,281)