Loans - Narrative (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2026	Jun. 30, 2025	Dec. 31, 2025
Financing Receivable, Troubled Debt Restructuring [Line Items]
Net deferred costs	$ 45.2		$ 45.2		$ 46.3
Accrued interest receivable	46.1		46.1		45.7
Interest income on nonaccrual loans	$ 0.9	$ 1.5	1.8	$ 2.2
Loans
Financing Receivable, Troubled Debt Restructuring [Line Items]
Remaining fair value adjustment for loans acquired			$ (129.2)		$ (150.0)
Percentage of fair value adjustment for loans acquired	(4.00%)		(4.00%)		(4.00%)