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Residential Investor Loans - Schedule of Classifications and Carrying Values of Residential Investor Loans (Details) - USD ($) $ in Thousands | Mar. 31, 2025 | Dec. 31, 2024
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Held-for-sale at fair value |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Fair value of loans | $ 241,425 | $ 237,224
Held-for-sale at fair value | Residential Investor Term, Unsecuritized |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Fair value of loans | 169,372 | 158,637
Held-for-sale at fair value | Residential Investor Term, Securitized |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Fair value of loans | 0 | 0
Held-for-sale at fair value | Residential Investor Bridge, Unsecuritized |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Fair value of loans | 72,053 | 78,587
Held-for-sale at fair value | Residential Investor Bridge, Securitized |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Fair value of loans | 0 | 0
Held-for-investment at fair value |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Fair value of loans | 4,198,409 | 4,349,866
Held-for-investment at fair value | Residential Investor Term, Unsecuritized |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Fair value of loans | 0 | 0
Held-for-investment at fair value | Residential Investor Term, Securitized |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Fair value of loans | 2,389,804 | 2,485,069
Held-for-investment at fair value | Residential Investor Bridge, Unsecuritized |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Fair value of loans | 1,039,223 | 1,041,694
Held-for-investment at fair value | Residential Investor Bridge, Securitized |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Fair value of loans | 769,382 | 823,103
Total Residential Investor Loans |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Fair value of loans | 4,439,834 | 4,587,090
Total Residential Investor Loans | Residential Investor Term, Unsecuritized |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Fair value of loans | 169,372 | 158,637
Total Residential Investor Loans | Residential Investor Term, Securitized |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Fair value of loans | 2,389,804 | 2,485,069
Total Residential Investor Loans | Residential Investor Bridge, Unsecuritized |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Fair value of loans | 1,111,276 | 1,120,281
Total Residential Investor Loans | Residential Investor Bridge, Securitized |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Fair value of loans | $ 769,382 | $ 823,103

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