Income Taxes - Summary of Effective Tax Rate Differed from U.S. Statutory Federal Tax Rate (Detail)	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Income Tax Disclosure [Abstract]
Statutory federal tax rate	21.00%	21.00%	21.00%
State taxes, net of federal benefit	4.50%	3.20%	6.20%
Adjustment for final positions on filed returns	0.90%	0.60%	(0.20%)
Nondeductible expenses and other, net	0.50%	0.70%	1.30%
Federal and state tax credits	(2.10%)	(4.90%)	(7.50%)
Other, net		0.10%	0.20%
Total	24.80%	20.70%	21.00%