Income Taxes - Narrative (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Tax Credit Investment [Line Items]
Current net income tax receivable	$ 22.2	$ 16.4
Investment Program, Proportional Amortization Method, Elected, Income Tax Credit	103.8	90.8
Investment Program, Proportional Amortization Method, Elected, Commitment	(25.2)	(32.3)
Tax credits and other tax benefits	$ 13.3	$ 9.8	$ 8.5
Investment Program, Proportional Amortization Method, Elected, Income Tax Credit and Other Income Tax Benefit, before Amortization, Statement of Income or Comprehensive Income [Extensible Enumeration]	Provision for income tax	Provision for income tax	Provision for income tax
Investment Program, Proportional Amortization Method, Elected, Income Tax Credit And Other Income Tax Benefit Before Amortization, Statement Of Cash Flows Extensible Enumeration Not Disclosed Flag	provision for income taxes	provision for income taxes	provision for income taxes
Income Tax Expense (Benefit)
Tax Credit Investment [Line Items]
Amortization expense	$ 11.6	$ 9.3	$ 3.6
Investment Program, Proportional Amortization Method, Applied, Amortization Expense, Statement of Income or Comprehensive Income [Extensible Enumeration]	Provision for income tax	Provision for income tax	Provision for income tax
Investment Program, Proportional Amortization Method, Applied, Income Tax Credit And Other Tax Benefit Amortization, Statement Of Cash Flows Extensible Enumeration Not Disclosed Flag	provision for income taxes	provision for income taxes	provision for income taxes
Other Noninterest Expense
Tax Credit Investment [Line Items]
Amortization expense	$ 0.4	$ 2.8	$ 3.3
Investment Program, Proportional Amortization Method, Applied, Amortization Expense, Statement of Income or Comprehensive Income [Extensible Enumeration]	Other Noninterest Expense	Other Noninterest Expense	Other Noninterest Expense
Investment Program, Proportional Amortization Method, Applied, Income Tax Credit And Other Tax Benefit Amortization, Statement Of Cash Flows Extensible Enumeration Not Disclosed Flag	non-interest expense	non-interest expense	non-interest expense