Consolidated Statements of Stockholders' Equity - USD ($) $ in Thousands		Total	Retained Earnings	Accumulated Other Comprehensive Income (Loss)	Common Stock	Additional Paid-in Capital
Beginning balance at Dec. 31, 2020		$ 828,233	$ 656,740	$ 4,173	$ 2,160	$ 165,160
Beginning balance (in shares) at Dec. 31, 2020					32,372,621
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net earnings		96,104	96,104
Other comprehensive (loss) income		(9,166)		(9,166)
Dividends		(20,706)	(20,706)
Repurchases of common stock		(35,239)			$ (17)	(35,222)
Repurchases of common stock (in shares)					(249,848)
Shares and options issued under stock plans		17,789			$ 11	17,778
Shares and options issued under stock plans (in shares)					164,377
Ending balance at Dec. 31, 2021		877,015	732,138	(4,993)	$ 2,154	147,716
Ending balance (in shares) at Dec. 31, 2021					32,287,150
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net earnings		105,367	105,367
Other comprehensive (loss) income		(2,161)		(2,161)
Dividends		(23,018)	(23,018)
Repurchases of common stock		(35,423)			$ (16)	(35,407)
Repurchases of common stock (in shares)					(252,304)
Shares and options issued under stock plans		16,504			$ 7	16,497
Shares and options issued under stock plans (in shares)					117,941
Ending balance at Dec. 31, 2022		$ 938,284	814,487	(7,154)	$ 2,145	128,806
Ending balance (in shares) at Dec. 31, 2022		32,152,787			32,152,787
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net earnings		$ 108,543	108,543
Other comprehensive (loss) income		15,845		15,845
Dividends		(25,542)	(25,542)
Repurchases of common stock	[1]	(4,514)			$ (2)	(4,512)
Repurchases of common stock (in shares)	[1]				(32,558)
Shares and options issued under stock plans		21,368			$ 9	21,359
Shares and options issued under stock plans (in shares)					134,499
Ending balance at Dec. 31, 2023		$ 1,053,984	$ 897,488	$ 8,691	$ 2,152	$ 145,653
Ending balance (in shares) at Dec. 31, 2023		32,254,728			32,254,728

[1]  * On August 16, 2022, the U.S. government enacted the Inflation Reduction Act (the "IRA") into law. The IRA imposes a 1% excise tax on share repurchases, which is effective for repurchases completed after December 31, 2022. The excise tax is recorded within equity as part of the repurchase of the common stock.