Condensed Consolidated Statements of Changes in Stockholders' Equity - USD ($) $ in Thousands	Total	Retained Earnings	Accumulated Other Comprehensive (Loss) Income	Common Stock	Additional Paid-in Capital
Beginning balance at Dec. 31, 2021	$ 877,015	$ 732,138	$ (4,993)	$ 2,154	$ 147,716
Beginning balance, common stock (in shares) at Dec. 31, 2021				32,287,150
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net earnings	28,930	28,930
Other comprehensive income (loss)	(1,296)		(1,296)
Repurchases of common stock	(34,599)			$ (16)	(34,583)
Repurchases of common stock (in shares)				(245,685)
Dividends	(10)	(10)
Shares and options issued under stock plans	3,642			$ 4	3,638
Shares and options issued under stock plans (in shares)				74,604
Ending balance at Mar. 31, 2022	873,682	761,058	(6,289)	$ 2,142	116,771
Ending balance, common stock (in shares) at Mar. 31, 2022				32,116,069
Beginning balance at Dec. 31, 2022	938,284	814,487	(7,154)	$ 2,145	128,806
Beginning balance, common stock (in shares) at Dec. 31, 2022				32,152,787
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net earnings	22,710	22,710
Other comprehensive income (loss)	9,013		9,013
Repurchases of common stock	(3,849)			$ (2)	(3,847)
Repurchases of common stock (in shares)				(28,109)
Shares and options issued under stock plans	7,258			$ 7	7,251
Shares and options issued under stock plans (in shares)				100,949
Ending balance at Mar. 31, 2023	$ 973,416	$ 837,197	$ 1,859	$ 2,150	$ 132,210
Ending balance, common stock (in shares) at Mar. 31, 2023				32,225,627