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v3.24.0.1

Other Investments - Additional Information (Details) $ in Thousands | 12 Months Ended
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Dec. 31, 2023 USD ($) Investment partnership | Dec. 31, 2022 USD ($) | Dec. 31, 2021 USD ($) | Dec. 31, 2018 partnership
Investment [Line Items] |  |  |  |
Number of partnerships consolidated | partnership | 2 |  |  | 2
Collateral amounts | $ 1,565,514 | $ 1,379,856 |  |
Investment fair value gains (losses), net | (44,400) | (178,272) | $ 114,624 |
Other income, gains (losses) | 12,886 | 21,204 | 12,018 |
Interest income | 724,462 | 707,854 | 574,926 |
Mortgage servicing rights income (loss), net | 7,033 | 14,879 | 2,380 |
Strategic investments |  |  |  |
Investment [Line Items] |  |  |  |
Investment fair value gains (losses), net | (3,000) | 13,000 | 0 |
Other income, gains (losses) | $ (3,000) | (1,000) | 1,000 |
Number of investments made | Investment | 7 |  |  |
MSRs |  |  |  |
Investment [Line Items] |  |  |  |
Servicing asset, fair value | $ 24,877 | 25,421 |  |
Associated principal | 2,030,000 | 2,190,000 |  |
RWT Horizons |  |  |  |
Investment [Line Items] |  |  |  |
Investments accounted for under the fair value option | 3,000 |  |  |
Measurement alternative, fair value option | 29,000 |  |  |
Carrying amount of equity method investments | $ 24,000 |  |  |
RWT Horizons | Strategic investments |  |  |  |
Investment [Line Items] |  |  |  |
Number of investments made | Investment | 34 |  |  |
Investments | $ 21,000 |  |  |
BPL Bridge Loans | Strategic investments |  |  |  |
Investment [Line Items] |  |  |  |
Investments | 4,000 |  |  |
Sale of investments | $ 79,000 |  |  |
Equity method investment, ownership percentage | 20.00% |  |  |
Equity Method Income, Joint Venture | Strategic investments |  |  |  |
Investment [Line Items] |  |  |  |
Sale of investments | $ 200 |  |  |
Asset Management Fees | Strategic investments |  |  |  |
Investment [Line Items] |  |  |  |
Sale of investments | 100 |  |  |
Servicer advance financing |  |  |  |
Investment [Line Items] |  |  |  |
Collateral amounts | 185,000 |  |  |
Income (loss) on investments | 21,000 | 20,000 | 12,000 |
Investment fair value gains (losses), net | 12,000 | (11,000) | (1,000) |
Held-for sale residential loans |  |  |  |
Investment [Line Items] |  |  |  |
Servicing asset, fair value | 225,345 | 269,259 |  |
Servicing asset, unpaid principal balance on underlying loan | 10,180,000 |  |  |
Excess MSRs |  |  |  |
Investment [Line Items] |  |  |  |
Servicing asset, fair value | 37,367 | 39,035 |  |
Investment fair value gains (losses), net | (2,000) | (5,000) | 8,000 |
Interest income | 14,000 | $ 16,000 | $ 13,000 |
Fair value option elected aggregate carrying amount, asset | $ 0 |  |  |

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