Consolidated Statements of Stockholders' Equity - USD ($) shares in Thousands, $ in Thousands	Total	Common Stock	Additional Paid-in Capital	Accumulated Other Comprehensive Loss, net of taxes	Retained Earnings	Treasury Stock
Beginning balance (in shares) at Dec. 31, 2023		76,329
Beginning balance at Dec. 31, 2023	$ 456,616	$ 763	$ 310,436	$ (1,844)	$ 185,010	$ (37,749)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	15,309				15,309
Unrealized gain on available-for-sale marketable securities, net of taxes	(328)			(328)
Shares issued in connection with equity incentive plans, net of taxes (in shares)		204
Shares issued in connection with equity incentive plans, net of taxes	(1,030)	$ 2	(1,032)
Share-based compensation expense	2,444		2,444
Shares issued for Deferred Compensation Plan, net	519		448			71
Shares issued for Employee Stock Purchase Plan	989		(216)			1,205
Other	62				62
Ending balance (in shares) at Mar. 31, 2024		76,533
Ending balance at Mar. 31, 2024	$ 474,581	$ 765	312,080	(2,172)	200,381	(36,473)
Beginning balance (in shares) at Dec. 31, 2024	73,203	76,533
Beginning balance at Dec. 31, 2024	$ 499,927	$ 765	318,363	(2,317)	224,556	(41,440)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	17,228				17,228
Unrealized gain on available-for-sale marketable securities, net of taxes	503			503
Shares issued in connection with equity incentive plans, net of taxes (in shares)		276
Shares issued in connection with equity incentive plans, net of taxes	(1,744)	$ 3	(1,747)
Share-based compensation expense	3,685		3,685
Purchases of treasury stock	(7,036)					(7,036)
Shares issued for Deferred Compensation Plan, net	565		502			63
Shares issued for Employee Stock Purchase Plan	1,018		(72)			1,090
Other	$ 52				52
Ending balance (in shares) at Mar. 31, 2025	72,919	76,809
Ending balance at Mar. 31, 2025	$ 514,198	$ 768	$ 320,731	$ (1,814)	$ 241,836	$ (47,323)