Investments in Qualified Affordable Housing Partnerships, Tax Credit and Other Investments, Net and Variable Interest Entities -Narrative (Details) - USD ($) $ in Millions	6 Months Ended
	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