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Residential Whole Loans - Narrative (Details) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2024 USD ($) loan | Dec. 31, 2023 USD ($) loan
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total residential whole loans | $ 9,100,000 | $ 9,000,000
Interest income | $ 3,300 |
Number of loan modifications | loan | 1 | 5
Average increase in weighted life | 29 months | 24 months
Change in carrying value of the loan | $ 100 |
Loan carrying value | 600 |
Non-QM and Single-Family Rental Loans |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Financing receivable, sale | 171,000 |
Loss on sale of financing receivable | 21,700 |
Reversal of previously recorded unrealized losses | 23,700 |
Gain from sale of loans | $ 2,000 |
90 or more |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Number of loan modifications | loan | 1 |
Nonperforming |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Financing receivable, nonaccrual | $ 298,600 | $ 315,400
Interest income | 2,200 |
Purchased Performing Loans |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Financing receivable, nonaccrual | 317,300 | 266,900
Purchased Credit Deteriorated Loans |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Financing receivable, nonaccrual | 61,200 | 66,500
Without Associated Credit Losses |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Financing receivable, nonaccrual | $ 51,000 | $ 51,600

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