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Loans and Investments - Non-performing Loans (Details) $ in Thousands	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2026 USD ($)	Jun. 30, 2025 USD ($)	Jun. 30, 2026 USD ($) loan	Jun. 30, 2025 USD ($)	Dec. 31, 2025 USD ($) loan
Loans and Investments
Number of loans \| loan			490		632
Bridge loans, total UPB			$ 440,799		$ 384,930
Interest income recognized on nonaccrual loans	$ 1,300	$ 4,100	$ 8,000	$ 9,900
Non-performing loans
Loans and Investments
Number of loans \| loan			19		26
Carrying value of loans	396,400		$ 396,400		$ 545,000
Loan loss reserves	31,100		31,100		10,200
Bridge loans, total UPB			428,845		569,137
Non-performing loans \| Financial Asset, Greater Than 60 Days Past Due
Loans and Investments
Bridge loans, total UPB			91,200		237,000
Interest receivable	1,900		1,900		$ 6,600
Non-performing loans \| Financial Asset, Greater Than 60 Days Past Due in Loan Modification In Progress
Loans and Investments
Bridge loans, total UPB			58,600
Interest receivable	$ 1,600		$ 1,600