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Investments in Qualified Affordable Housing Partnerships, Tax Credit and Other Investments, Net and Variable Interest Entities -Narrative (Details) - USD ($) $ in Millions | 6 Months Ended |
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Jun. 30, 2023 | Dec. 31, 2022
Investments in Tax Credit and Other Investments, Net [Line Items] |  |
Minimum compliance period for qualified affordable housing partnerships to fully utilize the tax credits (in years) | 15 years |
Tax credit investments |  |
Investments in Tax Credit and Other Investments, Net [Line Items] |  |
Equity securities | $ 24.2 | $ 24.0
Investments in Tax Credit and Other Investments and Other Assets |  |
Investments in Tax Credit and Other Investments, Net [Line Items] |  |
Equity securities without readily determinable fair values | $ 37.0 | $ 36.5

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