v3.25.4
Fair Value Measurements - Significant Level 3 Inputs (Details)
$ in Thousands
Dec. 31, 2025
USD ($)
Dec. 31, 2024
USD ($)
Residential mortgage loans - at fair value    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Assets, at fair value $ 294,134 $ 183,064
Level 3 | Residential mortgage loans - at fair value    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Assets, at fair value 993 0
Level 3 | Residential mortgage loans in securitization trusts - at fair value    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Assets, at fair value $ 30,167 $ 32,074
Level 3 | Minimum | Prepayment rate (annual CPR) | Residential mortgage loans - at fair value    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Loans held-for-sale, measurement input 0  
Level 3 | Minimum | Prepayment rate (annual CPR) | Residential mortgage loans in securitization trusts - at fair value    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Loans held-for-sale, measurement input 0.0292 0.0364
Level 3 | Minimum | Default rate | Residential mortgage loans - at fair value    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Loans held-for-sale, measurement input 0  
Level 3 | Minimum | Default rate | Residential mortgage loans in securitization trusts - at fair value    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Loans held-for-sale, measurement input 0.0038 0.0694
Level 3 | Minimum | Loss severity | Residential mortgage loans - at fair value    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Loans held-for-sale, measurement input 9.3  
Level 3 | Minimum | Loss severity | Residential mortgage loans in securitization trusts - at fair value    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Loans held-for-sale, measurement input (0.2391) (0.2304)
Level 3 | Minimum | Expected remaining life | Residential mortgage loans - at fair value    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Expected remaining life 2 years 7 months 6 days  
Level 3 | Minimum | Expected remaining life | Residential mortgage loans in securitization trusts - at fair value    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Expected remaining life 7 months 6 days 1 year 3 months 29 days
Level 3 | Maximum | Prepayment rate (annual CPR) | Residential mortgage loans - at fair value    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Loans held-for-sale, measurement input 0  
Level 3 | Maximum | Prepayment rate (annual CPR) | Residential mortgage loans in securitization trusts - at fair value    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Loans held-for-sale, measurement input 0.2131 0.1983
Level 3 | Maximum | Default rate | Residential mortgage loans - at fair value    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Loans held-for-sale, measurement input 0  
Level 3 | Maximum | Default rate | Residential mortgage loans in securitization trusts - at fair value    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Loans held-for-sale, measurement input 0.2612 0.4276
Level 3 | Maximum | Loss severity | Residential mortgage loans - at fair value    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Loans held-for-sale, measurement input (0.0930)  
Level 3 | Maximum | Loss severity | Residential mortgage loans in securitization trusts - at fair value    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Loans held-for-sale, measurement input 0.2863 0.1694
Level 3 | Maximum | Expected remaining life | Residential mortgage loans - at fair value    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Expected remaining life 2 years 7 months 6 days  
Level 3 | Maximum | Expected remaining life | Residential mortgage loans in securitization trusts - at fair value    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Expected remaining life 10 years 9 months 5 years 11 months 1 day
Level 3 | Average | Prepayment rate (annual CPR) | Residential mortgage loans - at fair value    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Loans held-for-sale, measurement input 0  
Level 3 | Average | Prepayment rate (annual CPR) | Residential mortgage loans in securitization trusts - at fair value    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Loans held-for-sale, measurement input 0.1005 0.0848
Level 3 | Average | Default rate | Residential mortgage loans - at fair value    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Loans held-for-sale, measurement input 0  
Level 3 | Average | Default rate | Residential mortgage loans in securitization trusts - at fair value    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Loans held-for-sale, measurement input 0.1440 0.1677
Level 3 | Average | Loss severity | Residential mortgage loans - at fair value    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Loans held-for-sale, measurement input (0.0930)  
Level 3 | Average | Loss severity | Residential mortgage loans in securitization trusts - at fair value    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Loans held-for-sale, measurement input (0.0321) (0.0196)
Level 3 | Average | Expected remaining life | Residential mortgage loans - at fair value    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Expected remaining life 2 years 8 months 1 day  
Level 3 | Average | Expected remaining life | Residential mortgage loans in securitization trusts - at fair value    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Expected remaining life 3 years 6 months 21 days 2 years 8 months 4 days