Condensed Consolidated Statements of Shareholders' Equity (Unaudited) - USD ($) shares in Thousands, $ in Thousands	Total	Common Stock [Member]	Additional Paid In Capital [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Loss [Member]
Beginning Balances, value at Dec. 31, 2021	$ 973,802	$ 3,521	$ 507,447	$ 479,992	$ (17,158)
Balances, shares at Dec. 31, 2021		35,213
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock-based compensation expense	13,282		13,282
Shares repurchased and retired, value	(9,391)	$ (37)	(4,177)	(5,177)
Shares repurchased and retired, shares		(376)
Stock options exercised, value	471	$ 3	468
Stock options exercised, shares		33
Vesting of restricted stock units, value		$ 41	(41)
Vesting of restricted stock units, shares		407
Shares withheld for taxes, value	(3,184)	$ (13)	(3,171)
Shares withheld for taxes, shares		(124)
Dividends declared	(17,406)			(17,406)
Net income	47,010			47,010
Other comprehensive income (loss)	(3,967)				(3,967)
Ending Balances, value at Sep. 30, 2022	1,000,617	$ 3,515	513,808	504,419	(21,125)
End Balances, shares at Sep. 30, 2022		35,153
Beginning Balances, value at Jun. 30, 2022	985,773	$ 3,514	509,172	491,379	(18,292)
Balances, shares at Jun. 30, 2022		35,140
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock-based compensation expense	4,795		4,795
Stock options exercised, value	12		12
Stock options exercised, shares		1
Vesting of restricted stock units, value		$ 2	(2)
Vesting of restricted stock units, shares		18
Shares withheld for taxes, value	(170)	$ (1)	(169)
Shares withheld for taxes, shares		(6)
Dividends declared	(5,789)			(5,789)
Net income	18,829			18,829
Other comprehensive income (loss)	(2,833)				(2,833)
Ending Balances, value at Sep. 30, 2022	1,000,617	$ 3,515	513,808	504,419	(21,125)
End Balances, shares at Sep. 30, 2022		35,153
Beginning Balances, value at Dec. 31, 2022	$ 1,026,416	$ 3,516	519,238	519,895	(16,233)
Balances, shares at Dec. 31, 2022	35,164	35,164
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock-based compensation expense	$ 12,331		12,331
Stock options exercised, value	68	$ 1	67
Stock options exercised, shares		5
Vesting of restricted stock units, value		$ 72	(72)
Vesting of restricted stock units, shares		721
Shares withheld for taxes, value	(5,804)	$ (24)	(5,780)
Shares withheld for taxes, shares		(237)
Dividends declared	(17,784)			(17,784)
Net income	46,763			46,763
Other comprehensive income (loss)	1,059				1,059
Ending Balances, value at Sep. 30, 2023	$ 1,063,049	$ 3,565	525,784	548,874	(15,174)
End Balances, shares at Sep. 30, 2023	35,653	35,653
Beginning Balances, value at Jun. 30, 2023	$ 1,047,729	$ 3,564	522,247	534,470	(12,552)
Balances, shares at Jun. 30, 2023		35,642
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock-based compensation expense	3,674		3,674
Vesting of restricted stock units, value		$ 2	(2)
Vesting of restricted stock units, shares		16
Shares withheld for taxes, value	(136)	$ (1)	(135)
Shares withheld for taxes, shares		(5)
Dividends declared	(6,008)			(6,008)
Net income	20,412			20,412
Other comprehensive income (loss)	(2,622)				(2,622)
Ending Balances, value at Sep. 30, 2023	$ 1,063,049	$ 3,565	$ 525,784	$ 548,874	$ (15,174)
End Balances, shares at Sep. 30, 2023	35,653	35,653