Income Taxes - Reconciliation of Effective to Statutory Tax Rates (Details)	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Effective income tax rate:
Federal statutory income tax rate	21.00%	21.00%	21.00%
State income taxes-net of federal effect	3.70%	4.40%	4.10%
Other	0.50%	0.40%	0.90%
Effective income tax rate	25.20%	25.80%	26.00%