Consolidated Statements of Stockholders' Equity - USD ($) shares in Thousands, $ in Thousands	Total	Common Stock	Paid-in Capital	Retained Earnings
Balance (in shares) at Dec. 31, 2019		52,079
Balance at Dec. 31, 2019	$ 290,140	$ 208	$ 3,631	$ 286,301
Net income	79,009			79,009
Stock options exercised and restricted stock awards granted (in shares)		712
Stock options exercised and restricted stock awards granted	21,418	$ 3	21,415
Share-based compensation	11,342		11,342
Stock repurchased and retired (in shares)		(566)
Stock repurchased and retired	(31,229)	$ (2)	(31,227)
Dividends	(19,815)			(19,815)
Balance (in shares) at Dec. 31, 2020		52,225
Balance at Dec. 31, 2020	350,865	$ 209	5,161	345,495
Net income	58,758			58,758
Stock options exercised and restricted stock awards granted (in shares)		623
Stock options exercised and restricted stock awards granted	21,148	$ 2	21,146
Share-based compensation	11,812		11,812
Stock repurchased and retired (in shares)		(320)
Stock repurchased and retired	(22,466)	$ (1)	(22,465)
Contingent consideration (Note $4)	66,000		66,000
Dividends	(19,947)			(19,947)
Balance (in shares) at Dec. 31, 2021		52,528
Balance at Dec. 31, 2021	466,170	$ 210	81,654	384,306
Net income	100,376			100,376
Stock options exercised and restricted stock awards granted (in shares)		1,140
Stock options exercised and restricted stock awards granted	23,140	$ 5	23,135
Share-based compensation	13,700		13,700
Stock repurchased and retired (in shares)		(243)
Stock repurchased and retired	(13,755)	$ (1)	(13,754)
Contingent consideration (Note $4)	(6,000)		(6,000)
Dividends	(22,917)			(22,917)
Balance (in shares) at Dec. 31, 2022		53,425
Balance at Dec. 31, 2022	$ 560,714	$ 214	$ 98,735	$ 461,765