v3.25.0.1
Income Taxes (Effective Tax Rate) (Details)
12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Reconciliations of the statutory federal income tax rate to our effective tax      
Federal statutory rate 21.00% 21.00% 21.00%
State income taxes, net of federal benefit 4.80% 4.40% 4.60%
Non-deductible expenses 0.80% 1.20% 1.10%
Uncertain tax position taxes and interest (0.30%) (0.80%) 0.20%
Investment tax credits (9.90%) (4.00%) (7.60%)
Other, net (0.40%) (0.80%) (0.50%)
Effective income tax rate 16.00% 21.00% 18.80%