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		52,225
Balance at Dec. 31, 2020	$ 350,865	$ 209	$ 5,161	$ 345,495
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	16,376			16,376
Stock options exercised, restricted stock awards granted, and contingent shares issued (Note 16) (in shares)		286
Stock options exercised, restricted stock awards granted, and contingent shares issued (Note 16)	9,438	$ 2	9,436
Share-based compensation	2,761		2,761
Stock repurchased and retired (in shares)		(87)
Stock repurchased and retired	(6,402)	$ (1)	(6,401)	0
Balance (in shares) at Mar. 31, 2021		52,424
Balance at Mar. 31, 2021	373,038	$ 210	10,957	361,871
Balance (in shares) at Dec. 31, 2021		52,528
Balance at Dec. 31, 2021	466,170	$ 210	81,654	384,306
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	18,059			18,059
Stock options exercised, restricted stock awards granted, and contingent shares issued (Note 16) (in shares)		605
Stock options exercised, restricted stock awards granted, and contingent shares issued (Note 16)	2,892	$ 2	2,890
Share-based compensation	3,112		3,112
Stock repurchased and retired (in shares)		(68)
Stock repurchased and retired	(4,082)	$ 0	(4,082)
Contingent consideration (Note 3)	(6,000)		(6,000)
Refund for cancelled cash dividends	5			5
Balance (in shares) at Mar. 31, 2022		53,065
Balance at Mar. 31, 2022	$ 480,156	$ 212	$ 77,574	$ 402,370