XML 64 R51.htm IDEA: XBRL DOCUMENT v3.22.4
Income Taxes - Schedule of Effective Income Tax Rate Reconciliation (Details)
12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Income Taxes      
Statutory U.S. federal income tax rate 21.00% 21.00% 21.00%
State income taxes, net of federal tax benefit 2.80% 2.40% 2.40%
State tax credits, net of federal effect (1.60%) (1.20%) (1.20%)
Excess tax benefits (0.10%) (1.30%) (0.40%)
Nondeductible expenses 0.20% 0.10%  
Other 0.80% 0.40% 1.00%
Effective Income Tax Rate Reconciliation, Percent, Total 23.10% 21.40% 22.80%