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Loans and Investments - Loan Modifications (Details) $ in Millions	3 Months Ended
	Mar. 31, 2026 USD ($) loan	Mar. 31, 2025 USD ($) loan	Dec. 31, 2025 USD ($)
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Deferred interest	$ 0.2	$ 3.8
Deferred interest for loans previously modified	5.4	9.1
Interest receivable written off		3.3
Accumulated deferred interest	73.1		$ 68.3
Future funding commitments, modified loans, borrowers experiencing financial difficulty	$ 14.7		$ 17.4
Number of loans modified not pursuant to contract | loan	2
Loans modified, not pursuant to contract, amount	$ 47.7
Financing receivable, specific reserve	$ 1.0	$ 5.2
Loan modification, refinancing, and extensions | loan	0	0
Temporary Interest Rate Relief, Five Loans
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Number of loans modified not pursuant to contract | loan	1
Loans modified, not pursuant to contract, amount	$ 25.6
Financing receivable, specific reserve	$ 2.2

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