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v3.23.3

Income Tax Expense - Reconciliation of Taxes from Federal Statutory Rate to Total Income Tax Expense (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2023 | Sep. 30, 2022 | Sep. 30, 2023 | Sep. 30, 2022
Reconciliation of Taxes from Federal Statutory Rate to Total Income Tax Expense [Abstract] |  |  |  |
Income Before Income Taxes | $ 88.9 | $ 19.6 | $ 168.3 | $ 74.7
Income Taxes Computed at Statutory Federal Rate | 18.7 | 4.1 | 35.3 | 15.7
Increase (Decrease) in Income Tax Due to: |  |  |  |
State Income Taxes – Net of Federal Income Tax Benefit | 8.0 | 1.1 | 15.0 | 6.6
Deferred Revaluation – Net of Federal Income Tax Benefit | 0.0 | 0.0 | 0.0 | (5.2)
Production tax credits | (7.7) | (9.7) | (28.3) | (34.4)
Investment tax credits | (1.6) | (3.2) | (5.2) | (3.2)
Regulatory Differences – Excess Deferred Tax | (2.3) | (1.5) | (7.5) | (6.7)
Non-Controlling Interest in Subsidiaries | 3.0 | 1.4 | 8.9 | 8.4
Other | 1.2 | 0.6 | 2.2 | (0.6)
Total Income Tax Expense (Benefit) | $ 19.3 | $ (7.2) | $ 20.4 | $ (19.4)

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