Property Loans - Summary of Partnership's Property Loans, Allowances for Credit Losses (Parenthetical) (Details) - USD ($) $ in Millions |
Mar. 31, 2026 |
Dec. 31, 2025 |
|---|---|---|
| Accounts, Notes, Loans and Financing Receivable, Gross, Allowance, and Net [Abstract] | ||
| CECL allowance for credit losses | $ 1.2 | $ 1.3 |