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	52,572			52,572
Stock options exercised, restricted stock awards granted, and contingent shares issued (Note 16) (in shares)		438
Stock options exercised, restricted stock awards granted, and contingent shares issued (Note 16)	14,573	$ 2	14,571
Share-based compensation	8,784		8,784
Stock repurchased and retired (in shares)		(243)
Stock repurchased and retired	(16,551)	$ (1)	(16,550)	0
Dividends net of refunds for cancelled cash dividends	(9,964)			(9,964)
Balance (in shares) at Sep. 30, 2021		52,420
Balance at Sep. 30, 2021	400,279	$ 210	11,966	388,103
Balance (in shares) at Jun. 30, 2021		52,416
Balance at Jun. 30, 2021	383,726	$ 210	10,998	372,518
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	15,581			15,581
Stock options exercised, restricted stock awards granted, and contingent shares issued (Note 16) (in shares)		77
Stock options exercised, restricted stock awards granted, and contingent shares issued (Note 16)	2,725	$ 0	2,725
Share-based compensation	2,991		2,991
Stock repurchased and retired (in shares)		(73)
Stock repurchased and retired	(4,748)	$ 0	(4,748)
Dividends net of refunds for cancelled cash dividends	4			4
Balance (in shares) at Sep. 30, 2021		52,420
Balance at Sep. 30, 2021	400,279	$ 210	11,966	388,103
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	61,478			61,478
Stock options exercised, restricted stock awards granted, and contingent shares issued (Note 16) (in shares)		843
Stock options exercised, restricted stock awards granted, and contingent shares issued (Note 16)	10,990	$ 3	10,987
Share-based compensation	10,229		10,229
Stock repurchased and retired (in shares)		(156)
Stock repurchased and retired	(8,921)	$ 0	(8,921)
Contingent consideration (Note 3)	(6,000)		(6,000)
Dividends net of refunds for cancelled cash dividends	(10,088)			(10,088)
Balance (in shares) at Sep. 30, 2022		53,215
Balance at Sep. 30, 2022	523,858	$ 213	87,949	435,696
Balance (in shares) at Jun. 30, 2022		53,127
Balance at Jun. 30, 2022	490,506	$ 213	82,078	408,215
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	27,473			27,473
Stock options exercised, restricted stock awards granted, and contingent shares issued (Note 16) (in shares)		124
Stock options exercised, restricted stock awards granted, and contingent shares issued (Note 16)	4,605	$ 0	4,605
Share-based compensation	3,321		3,321
Stock repurchased and retired (in shares)		(36)
Stock repurchased and retired	(2,055)		(2,055)	0
Dividends net of refunds for cancelled cash dividends	8			8
Balance (in shares) at Sep. 30, 2022		53,215
Balance at Sep. 30, 2022	$ 523,858	$ 213	$ 87,949	$ 435,696