Loans - Narrative (Details) - USD ($) $ in Millions	3 Months Ended	6 Months Ended	12 Months Ended
Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024	Dec. 31, 2024
Financing Receivable, Troubled Debt Restructuring [Line Items]
Net deferred costs	$ 45.6		$ 45.6		$ 43.9
Accrued interest receivable	39.0		39.0		38.1
Interest income on nonaccrual loans	$ 1.5	$ 0.7	2.2	$ 0.9
Loans
Financing Receivable, Troubled Debt Restructuring [Line Items]
Remaining fair value adjustment for loans acquired			$ 108.5		$ 128.1
Percentage of fair value adjustment for loans acquired	4.10%		4.10%		4.30%

The percentage of outstanding aggregate loan balances representing the fair value adjustments for loans acquired.

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- Definition

Financing Receivable, Nonaccrual, No Related Allowance, Interest Income

+ References

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Amount of addition (reduction) to the amount at which an asset could be incurred (settled) in a current transaction between willing parties.

+ References

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- Definition

The carrying amount of deferred costs.

+ References

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- Definition

Amount, before allowance for credit loss, of accrued interest on financing receivable.

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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