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Financial Guarantee Liability - Narrative (Details) $ in Thousands | 3 Months Ended | 9 Months Ended | 12 Months Ended
--- | --- | --- | ---
Sep. 30, 2025 USD ($) loan | Sep. 30, 2024 USD ($) | Sep. 30, 2025 USD ($) loan | Sep. 30, 2024 USD ($) | Dec. 31, 2024 USD ($) loan | Dec. 31, 2023 USD ($)
Guarantor Obligations |  |  |  |  |  |
Outstanding loan balances | $ 35,000,000 |  | $ 35,000,000 |  | $ 32,100,000 |
Maximum loss potential | 11,000,000 |  | 11,000,000 |  | 10,000,000 |
Provision (reversal) for expected credit losses | 1,700 | $ (2,700) | $ 5,172 | $ (1,300) | (1,891) |
Delinquency threshold period |  |  | 60 days |  |  |
Financial guarantee liability, settlement loss |  |  |  |  |  | $ 300
Delinquent |  |  |  |  |  |
Guarantor Obligations |  |  |  |  |  |
Outstanding loan balances | 5,100 |  | $ 5,100 |  | 5,100 |
Maximum loss potential | $ 1,700 |  | $ 1,700 |  | 1,700 |
Number of loans | loan | 1 |  | 1 |  |  |
Advances for principal and interest | $ 1,500 |  | $ 1,500 |  | 2,100 |
Liquidation value of loans outstanding | $ 3,500 |  | 3,500 |  | 6,100 |
Potential loss on liquidation of loan |  |  | $ 1,000 |  | $ 200 |
Foreclosure |  |  |  |  |  |
Guarantor Obligations |  |  |  |  |  |
Number of loans | loan |  |  |  |  | 1 |
Fannie Mae DUS or Freddie TAH Loans | Maximum |  |  |  |  |  |
Guarantor Obligations |  |  |  |  |  |
Percentage of contingent liability of actual losses incurred on outstanding loans |  |  | 33.00% |  |  |

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