Use of Special Purpose Entities (SPE) and Variable Interest Entities (VIE) - Schedule of VIE Initial Consolidation (Details) - USD ($) $ in Thousands |
Sep. 30, 2025 |
Jun. 30, 2025 |
Dec. 31, 2024 |
Sep. 30, 2024 |
Jun. 30, 2024 |
Dec. 31, 2023 |
|---|---|---|---|---|---|---|
| Variable Interest Entity [Line Items] | ||||||
| Residential loans, at fair value | $ 4,151,647 | $ 3,841,738 | ||||
| Collateralized debt obligations, at fair value | (3,577,459) | (2,978,444) | ||||
| Net investment | 1,391,065 | $ 1,383,873 | $ 1,398,775 | $ 1,450,136 | $ 1,441,663 | $ 1,600,065 |
| VIE, Primary Beneficiary | ||||||
| Variable Interest Entity [Line Items] | ||||||
| Residential loans, at fair value | 247,405 | 285,057 | ||||
| Collateralized debt obligations, at fair value | (235,226) | (275,200) | ||||
| Net investment | $ 12,179 | $ 9,857 |
| X | ||||||||||
- Definition The fair value as of the balance sheet date of firm holdings in mortgages, mortgage backed securities (investment instruments that represent ownership of an undivided interest in a group of mortgages, where principal and interest from the individual mortgages are used to pay investors' principal and interest on the mortgage backed security) and asset-backed securities that are primarily paid from the cash flows of a discrete pool of receivables or other financial assets (such as credit-card receivables), either fixed or revolving, that by their terms convert into cash within a finite time period. Includes both pledged (to counterparties as collateral for financing transactions) and unpledged holdings. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
|
| X | ||||||||||
- Definition Carrying value as of the balance sheet date, including the current and noncurrent portions, of collateralized debt obligations (with maturities initially due after one year or beyond the operating cycle, if longer). Such obligations include mortgage loans, chattel loans, and any other borrowings secured by assets of the borrower. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount of equity (deficit) attributable to parent and noncontrolling interest. Excludes temporary equity. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
|
| X | ||||||||||
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Details
|