Qualified Affordable Housing (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Schedule of Equity Method Investments [Line Items]
Investments in qualified affordable housing projects	$ 33.5	$ 23.6
Tax credits to offset amortization expense of investments in affordable housing projects	2.6	1.2	$ 2.0
New qualified affordable housing project commitment	12.0
Noninterest Expense
Schedule of Equity Method Investments [Line Items]
Amortization expense of investments in qualified affordable housing projects	$ 2.0	$ 1.4	$ 1.2