Income Taxes - Summary of Tax Reconciliations (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Current
Federal	$ 65,861	$ 42,337	$ 28,314
State	19,515	12,571	7,465
Foreign	7,641	4,478	6,039
Deferred
Federal	802	2,330	3,329
State	(169)	598	805
Foreign	(1,548)	250	(1,577)
Income tax expense (benefit)	92,102	62,564	44,375
Income and loss from continuing operations before income taxes
Domestic	336,085	238,320	163,257
Foreign	22,464	11,244	15,100
Income before taxes	$ 358,549	$ 249,564	$ 178,357
Reconciliations between the statutory federal income tax rates and effective income tax rates
Federal tax rate	21.00%	21.00%	21.00%
State taxes, net of federal benefit	4.30%	4.20%	3.60%
Change in U.S. tax rate applied to deferred taxes	0.00%	0.10%	(0.10%)
True-up of prior year tax returns to tax provision	(0.10%)	(0.40%)	(0.30%)
Difference between U.S. statutory and foreign local tax rates	0.40%	0.40%	0.80%
Change in uncertain tax position	0.00%	0.00%	0.10%
Other	(0.10%)	0.20%	0.20%
Effective income tax rate	25.70%	25.10%	24.90%