Consolidated Statements of Stockholders' Equity - USD ($) $ in Thousands	Total	Common Stock	Additional Paid-in Capital	Retained Earnings	Treasury Stock	Accumulated Other Comprehensive Loss
Balance at Dec. 31, 2021	$ 803,470	$ 23	$ 384,984	$ 649,298	$ (219,800)	$ (11,035)
Balance (in shares) at Dec. 31, 2021		18,876,000			4,659,000
Net income	64,243			64,243
Other comprehensive income (loss)	2,902					2,902
Equity compensation	13,171		13,171
Exercise of stock options	602		602
Exercise of stock options (in shares)		19,000
Issuance of shares pursuant to employee stock purchase plan and vesting of restricted stock units	3,200		3,200
Issuance of shares pursuant to employee stock purchase plan and vesting of restricted stock units (in shares)		235,000
Net payments for stock buybacks	(23,866)				$ (23,866)
Net payments for stock buybacks (in shares)		(247,000)			247,000
Dividends declared	(10,511)			(10,511)
Balance at Dec. 31, 2022	853,211	$ 23	401,957	703,030	$ (243,666)	(8,133)
Balance (in shares) at Dec. 31, 2022		18,883,000			4,906,000
Net income	82,612			82,612
Other comprehensive income (loss)	(3,752)					(3,752)
Equity compensation	14,861		14,861
Exercise of stock options	279		279
Exercise of stock options (in shares)		8,000
Issuance of shares pursuant to employee stock purchase plan and vesting of restricted stock units	4,406	$ 1	4,405
Issuance of shares pursuant to employee stock purchase plan and vesting of restricted stock units (in shares)		185,000
Net payments for stock buybacks	(23,489)				$ (23,489)
Net payments for stock buybacks (in shares)		(230,000)			230,000
Dividends declared	(10,543)			(10,543)
Balance at Dec. 31, 2023	917,585	$ 24	421,502	775,099	$ (267,155)	(11,885)
Balance (in shares) at Dec. 31, 2023		18,846,000			5,136,000
Net income	110,170			110,170
Other comprehensive income (loss)	(3,861)					(3,861)
Equity compensation	16,722		16,722
Exercise of stock options	107		107
Exercise of stock options (in shares)		2,000
Issuance of shares pursuant to employee stock purchase plan and vesting of restricted stock units	5,132		5,132
Issuance of shares pursuant to employee stock purchase plan and vesting of restricted stock units (in shares)		202,000
Net payments for stock buybacks	(52,899)				$ (52,899)
Net payments for stock buybacks (in shares)		(384,000)			384,000
Dividends declared	(10,497)			(10,497)
Balance at Dec. 31, 2024	$ 982,459	$ 24	$ 443,463	$ 874,772	$ (320,054)	$ (15,746)
Balance (in shares) at Dec. 31, 2024		18,666,000			5,520