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, 2020		78,337
Balance at Dec. 31, 2020	$ 350,865	$ 317	$ 5,161	$ 345,387
Net income	58,758			58,758
Stock options exercised and restricted (in shares)		935
Stock options exercised and restricted	21,148	$ 2	21,146
Share-based compensation	11,812		11,812
Stock repurchased and retired (in shares)		(480)
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		78,792
Balance at Dec. 31, 2021	466,170	$ 318	81,654	384,198
Net income	100,376			100,376
Stock options exercised and restricted (in shares)		1,711
Stock options exercised and restricted	23,140	$ 5	23,135
Share-based compensation	13,700		13,700
Stock repurchased and retired (in shares)		(365)
Stock repurchased and retired	(13,755)	$ (1)	(13,754)
Contingent consideration	6,000		6,000
Dividends	(22,917)			(22,917)
Balance (in shares) at Dec. 31, 2022		80,138
Balance at Dec. 31, 2022	560,714	$ 322	98,735	461,657
Net income	177,623			177,623
Stock options exercised and restricted (in shares)		1,795
Stock options exercised and restricted	33,259	$ 7	33,252
Share-based compensation	16,384		16,384
Stock repurchased and retired (in shares)		(425)
Stock repurchased and retired	(26,311)	$ (3)	(26,308)
Dividends	(26,445)			(26,445)
Balance (in shares) at Dec. 31, 2023		81,508
Balance at Dec. 31, 2023	$ 735,224	$ 326	$ 122,063	$ 612,835