Repurchase Agreements and Warehouse Facilities - Schedule of Company's Repurchase Agreements (Details) - USD ($) $ in Thousands |
Sep. 30, 2025 |
Dec. 31, 2024 |
|---|---|---|
| Assets Sold under Agreements to Repurchase [Line Items] | ||
| Total carrying value | $ 6,481,072 | $ 4,012,225 |
| Investment securities | ||
| Assets Sold under Agreements to Repurchase [Line Items] | ||
| Total carrying value | 6,100,691 | 3,516,611 |
| Residential loans and real estate owned | ||
| Assets Sold under Agreements to Repurchase [Line Items] | ||
| Total carrying value | 217,612 | 428,399 |
| Residential Loans Held for Sale | ||
| Assets Sold under Agreements to Repurchase [Line Items] | ||
| Total carrying value | 97,290 | 0 |
| Single-family rental properties | ||
| Assets Sold under Agreements to Repurchase [Line Items] | ||
| Total carrying value | $ 65,479 | $ 67,215 |