Repurchase Agreements and Warehouse Facilities - Schedule of Company's Repurchase Agreements (Details) - USD ($) $ in Thousands |
Sep. 30, 2026 |
Dec. 31, 2025 |
|---|---|---|
| Assets Sold under Agreements to Repurchase [Line Items] | ||
| Total carrying value | $ 7,460,119 | $ 6,753,417 |
| Investment securities | ||
| Assets Sold under Agreements to Repurchase [Line Items] | ||
| Total carrying value | 6,633,635 | 6,154,086 |
| Residential loans and real estate owned | ||
| Assets Sold under Agreements to Repurchase [Line Items] | ||
| Total carrying value | 635,461 | 462,127 |
| Residential loans held for sale | ||
| Assets Sold under Agreements to Repurchase [Line Items] | ||
| Total carrying value | 139,252 | 73,446 |
| Single-family rental properties | ||
| Assets Sold under Agreements to Repurchase [Line Items] | ||
| Total carrying value | $ 51,771 | $ 63,758 |