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, 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	58,712
Other comprehensive income (loss)	(7,431)
Ending balance at Jun. 30, 2022	901,370	790,840	(12,424)	$ 2,143	120,811
Ending balance, common stock (in shares) at Jun. 30, 2022				32,120,593
Beginning balance at Mar. 31, 2022	873,682	761,058	(6,289)	$ 2,142	116,771
Beginning balance, common stock (in shares) at Mar. 31, 2022				32,116,069
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net earnings	29,782	29,782
Other comprehensive income (loss)	(6,135)		(6,135)
Repurchases of common stock	(600)				(600)
Repurchases of common stock (in shares)				(4,976)
Shares and options issued under stock plans	4,641			$ 1	4,640
Shares and options issued under stock plans (in shares)				9,500
Ending balance at Jun. 30, 2022	901,370	790,840	(12,424)	$ 2,143	120,811
Ending balance, common stock (in shares) at Jun. 30, 2022				32,120,593
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			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
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			32,152,787
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net earnings	$ 52,820
Other comprehensive income (loss)	7,345
Ending balance at Jun. 30, 2023	$ 1,006,903	867,307	191	$ 2,151	137,254
Ending balance, common stock (in shares) at Jun. 30, 2023	32,239,202			32,239,202
Beginning balance at Mar. 31, 2023	$ 973,416	837,197	1,859	$ 2,150	132,210
Beginning balance, common stock (in shares) at Mar. 31, 2023				32,225,627
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net earnings	30,110	30,110
Other comprehensive income (loss)	(1,668)		(1,668)
Repurchases of common stock	(75)				(75)
Repurchases of common stock (in shares)				(567)
Shares and options issued under stock plans	5,120			$ 1	5,119
Shares and options issued under stock plans (in shares)				14,142
Ending balance at Jun. 30, 2023	$ 1,006,903	$ 867,307	$ 191	$ 2,151	$ 137,254
Ending balance, common stock (in shares) at Jun. 30, 2023	32,239,202			32,239,202