Income Taxes - Provision for Income Taxes Attributable to Income from Continuing Operations (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Income Tax Disclosure [Abstract]
Tax at U.S. federal statutory rates	$ 19,538	$ 21,733	$ 19,507
State taxes (net of federal benefit)	4,498	5,354	4,774
Business meals and entertainment — non-deductible	190	458	987
Change in valuation allowance	435	176	932
Reserves for uncertain tax positions	(104)	(1,290)	(263)
Share-based compensation	(4,187)	(2,394)	(4,773)
Non-deductible expenses	1,408	787	713
Other, net	351	317	(37)
Total income tax expense from continuing operations	$ 22,129	$ 25,141	$ 21,840
Effective income tax rate	23.80%	24.30%	23.50%