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Federal Home Loan Bank Advances and Other Borrowings (Details) $ in Millions	Mar. 31, 2026 USD ($) loan	Dec. 31, 2025 USD ($)
Loan and Security Agreement | Revolving Line of Credit
Federal Home Loan Bank Advances and Other Borrowings
Bank stock (as a percent)	100.00%
Borrowing capacity	$ 40.0
Number of outstanding letters of credit | loan	2
Outstanding letters of credit	$ 2.7	$ 6.4
Interest rate (as a percent)	6.75%	6.75%
Loan and Security Agreement | Minimum | Revolving Line of Credit
Federal Home Loan Bank Advances and Other Borrowings
Interest rate (as a percent)	4.50%	4.50%
Federal Home Loan Bank Advances
Federal Home Loan Bank Advances and Other Borrowings
Principal balances	$ 1,680.0	$ 1,620.0
Remaining available borrowings	784.9	611.3
Outstanding letters of credit	$ 39.1	$ 109.0

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