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v3.23.1

Other Investments - Additional Information (Details) $ in Thousands | 3 Months Ended | 12 Months Ended |
--- | --- | --- | ---
Mar. 31, 2023 USD ($) partnership investment | Mar. 31, 2022 USD ($) | Dec. 31, 2018 partnership | Dec. 31, 2022 USD ($)
Net Investment Income [Line Items] |  |  |  |
Number of partnerships consolidated | partnership | 2 |  | 2 |
Collateral amounts | $ 1,414,099 |  |  | $ 1,379,856
Investment fair value changes, net | (127) | $ (6,120) |  |
Investments | 6,000 |  |  |
Other income, net | 4,556 | 5,983 |  |
Interest income | 178,516 | 189,400 |  |
MSR income, net | 1,077 | $ 4,303 |  |
Strategic investments |  |  |  |
Net Investment Income [Line Items] |  |  |  |
Investment fair value changes, net | 0 |  |  |
Other income, net | $ (20) |  |  |
Strategic investments | RWT Horizons |  |  |  |
Net Investment Income [Line Items] |  |  |  |
Number of investments made | investment | 31 |  |  |
Investments | $ 23,000 |  |  |
Strategic investments | Churchill Finance |  |  |  |
Net Investment Income [Line Items] |  |  |  |
Number of investments made | investment | 6,000 |  |  |
MSRs |  |  |  |
Net Investment Income [Line Items] |  |  |  |
Mortgage servicing rights | $ 24,831 |  |  | 25,421
Aggregate principal balance | 2,150,000 |  |  | 2,190,000
Servicer advance financing |  |  |  |
Net Investment Income [Line Items] |  |  |  |
Collateral amounts | 233,000 |  |  |
Equity investment income | 5,000 |  |  |
Investment fair value changes, net | (1,000) |  |  |
Held-for-sale residential loans |  |  |  |
Net Investment Income [Line Items] |  |  |  |
Mortgage servicing rights | 260,378 |  |  | 269,259
Servicing asset, unpaid principal balance on underlying loan | 11,060,000 |  |  |
Excess MSRs |  |  |  |
Net Investment Income [Line Items] |  |  |  |
Mortgage servicing rights | 38,807 |  |  | $ 39,035
Investment fair value changes, net | (200) |  |  |
Interest income | 4,000 |  |  |
Fair value option elected aggregate carrying amount, asset | $ 0 |  |  |

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