Income Taxes - Additional Information (Details) - USD ($) $ in Millions |
3 Months Ended | 6 Months Ended | |||
|---|---|---|---|---|---|
Jun. 30, 2026 |
Jun. 30, 2025 |
Jun. 30, 2026 |
Jun. 30, 2025 |
Dec. 31, 2025 |
|
| Income Tax Disclosure [Abstract] | |||||
| Effective tax rate | 19.00% | 18.40% | 18.70% | 18.80% | |
| Deferred tax assets, net | $ 425.0 | $ 425.0 | $ 349.0 | ||
| Increase in DTA | 76.0 | ||||
| Deferred tax valuation allowance | 0.0 | 0.0 | 0.0 | ||
| Investments in LIHTC and renewable energy | 571.0 | 571.0 | 593.0 | ||
| Investment-related Liabilities | 263.0 | 263.0 | $ 329.0 | ||
| Investment-related tax credit | 21.5 | $ 22.1 | 36.1 | $ 39.7 | |
| Amortization of tax credit investments | $ 19.2 | $ 19.0 | $ 32.1 | $ 34.1 | |
| X | ||||||||||
- Definition Amount of investment that generates income tax credit and other income tax benefit under tax credit program elected to be accounted for using proportional amortization method. Includes, but is not limited to, investment under program not meeting condition for accounting under proportional amortization method. Reference 1: http://fasb.org/us-gaap/role/ref/otherTransitionRef
|
| X | ||||||||||
- Definition Amount of amortization expense for investment that generates income tax credit and other income tax benefit under tax credit program accounted for using proportional amortization method. Reference 1: http://fasb.org/us-gaap/role/ref/otherTransitionRef
|
| X | ||||||||||
- Definition Amount, after allocation of valuation allowances and deferred tax liability, of deferred tax asset attributable to deductible differences and carryforwards, with jurisdictional netting. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Amount of deferred tax assets for which it is more likely than not that a tax benefit will not be realized. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- References No definition available.
|
| X | ||||||||||
- Definition The increase (decrease) during the reporting period in the account that represents the temporary difference that results from Income or Loss that is recognized for accounting purposes but not for tax purposes and vice versa. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount of income tax credit generated by investment under tax credit program elected to be accounted for using proportional amortization method. Includes, but is not limited to, investment under tax credit program not meeting condition for accounting under proportional amortization method. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition The aggregate amount of liabilities as of the balance sheet date for obligations incurred in connection with the entity's investments. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
|