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Agreements and Transactions with Related Parties - 2021 Activity (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023	Dec. 31, 2021
Agreements and Transactions with Related Parties
Interest income	$ 286,522	$ 336,474	$ 905,002	$ 1,000,159
Related Party
Agreements and Transactions with Related Parties
Amount invested					$ 4,200
Related Party | Maturity date of March 2024 | Bridge loans | Other Related Party Transactions
Agreements and Transactions with Related Parties
Loan committed					$ 63,400
Base spread, percentage					3.75%
SOFR floor, percentage					0.25%
Interest income		$ 1,500		$ 4,300
Related Party | Commercial Mortgage Backed Security
Agreements and Transactions with Related Parties
Loans assumed					$ 26,000
Related Party | Retail property
Agreements and Transactions with Related Parties
Property purchased					$ 32,500
Related Party | LLC
Agreements and Transactions with Related Parties
Ownership interest, percentage					49.30%
Immediate Family Member of Management or Principal Owner | LLC
Agreements and Transactions with Related Parties
Percentage of ownership interest of related party in the entity					10.00%

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This element represents the aggregate cost of investments accounted for under the equity method of accounting.

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Amount of operating interest income, including, but not limited to, amortization and accretion of premiums and discounts on securities.

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