Stockholders' Equity - Schedule of Changes in Stockholders' Equity (Details) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Balance	$ 872,845	$ 819,417	$ 853,211	$ 803,470
Net Income (Loss)	23,740	19,105	60,450	55,364
Other comprehensive (loss) income	(4,053)	(1,555)	(2,236)	(3,107)
Equity compensation	3,446	3,516	10,134	10,023
Exercise of stock options		218	278	412
Issuance of shares pursuant to employee stock purchase plan and vesting of restricted stock units		4	2,265	1,543
Payments for stock buybacks	(12)	(330)	(22,864)	(22,096)
Dividends declared	(2,636)	(2,636)	(7,908)	(7,870)
Balance	$ 893,330	$ 837,739	$ 893,330	$ 837,739
Common Stock
Balance (in shares)	18,815	18,818	18,883	18,876
Balance	$ 24	$ 23	$ 23	$ 23
Exercise of stock options (in shares)		5	8	13
Issuance of shares pursuant to employee stock purchase plan and vesting of restricted stock units (in shares)	2	14	151	176
Issuance of shares pursuant to employee stock purchase plan and vesting of restricted stock units			$ 1
Payments for stock buybacks (in shares)		(3)	(225)	(231)
Balance (in shares)	18,817	18,834	18,817	18,834
Balance	$ 24	$ 23	$ 24	$ 23
Additional Paid-in Capital
Balance	411,187	393,224	401,957	384,984
Equity compensation	3,446	3,516	10,134	10,023
Exercise of stock options		218	278	412
Issuance of shares pursuant to employee stock purchase plan and vesting of restricted stock units		4	2,264	1,543
Balance	414,633	396,962	414,633	396,962
Retained Earnings
Balance	734,468	680,323	703,030	649,298
Net Income (Loss)	23,740	19,105	60,450	55,364
Dividends declared	(2,636)	(2,636)	(7,908)	(7,870)
Balance	$ 755,572	$ 696,792	$ 755,572	$ 696,792
Treasury Stock
Balance (in shares)	5,131	4,887	4,906	4,659
Balance	$ (266,518)	$ (241,566)	$ (243,666)	$ (219,800)
Payments for stock buybacks (in shares)		3	225	231
Payments for stock buybacks	$ (12)	$ (330)	$ (22,864)	$ (22,096)
Balance (in shares)	5,131	4,890	5,131	4,890
Balance	$ (266,530)	$ (241,896)	$ (266,530)	$ (241,896)
Accumulated Other Comprehensive Loss
Balance	(6,316)	(12,587)	(8,133)	(11,035)
Other comprehensive (loss) income	(4,053)	(1,555)	(2,236)	(3,107)
Balance	$ (10,369)	$ (14,142)	$ (10,369)	$ (14,142)