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Income Taxes - Summary of Effective Tax Rates Differ from Federal Statutory Rates (Details)
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Income Tax Disclosure [Abstract]      
Federal statutory income tax rate 21.00% 21.00% 21.00%
Increase (decrease) in tax rate resulting from:      
Meals and entertainment 0.00% 0.20% 0.20%
State income taxes, net of federal tax benefit 8.50% 8.30% 7.30%
Stock option expense and related excess tax benefits 0.10% (0.70%) (1.90%)
Company owned life insurance (0.10%) (0.30%) (1.40%)
Other, net (0.40%) (0.50%) (1.00%)
Effective tax rate 29.10% 28.00% 24.20%