Commitments and Contingencies - Narrative (Details) - USD ($) $ in Millions	Mar. 31, 2025	Dec. 31, 2024	Mar. 31, 2024
SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items]
Accrual for special assessment charge		$ 39.8	$ 33.9
SEC Schedule, 12-09, Allowance, Credit Loss
SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items]
ACL on unfunded loan commitments	$ 21.4	$ 22.6