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Schedule IV - Mortgage Loans On Real Estate (Details) | 12 Months Ended |  |
--- | --- | --- | ---
Dec. 31, 2023 USD ($) loan | Dec. 31, 2022 USD ($) loan | Dec. 31, 2021 USD ($) | Dec. 31, 2020 USD ($)
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |  |  |  |
Carrying Amount | $ 12,696,220,000 | $ 11,370,323,000 | $ 12,856,934,000 | $ 8,877,626,000
Residential loans, held-for-investment |  |  |  |
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |  |  |  |
Carrying Amount | 6,139,445,000 |  |  |
Principal Amount Subject to Delinquent Principal or Interest | $ 145,330,000 |  |  |
Residential loans, held-for-sale, at fair value |  |  |  |
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |  |  |  |
Number of Loans | loan | 874 | 994 |  |
Carrying Amount | $ 911,192,000 |  |  |
Principal Amount Subject to Delinquent Principal or Interest | $ 0 | $ 208,000 |  |
Residential loans, held-for-sale, at fair value | Hybrid ARM loans |  |  |  |
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |  |  |  |
Number of Loans | loan | 2 | 8 |  |
Carrying Amount | $ 710,000 |  |  |
Principal Amount Subject to Delinquent Principal or Interest | $ 0 | $ 0 |  |
Residential loans, held-for-sale, at fair value | Hybrid ARM loans | Minimum |  |  |  |
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |  |  |  |
Interest Rate | 6.25% |  |  |
Residential loans, held-for-sale, at fair value | Hybrid ARM loans | Maximum |  |  |  |
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |  |  |  |
Interest Rate | 7.63% |  |  |
Residential loans, held-for-sale, at fair value | Fixed loans |  |  |  |
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |  |  |  |
Number of Loans | loan | 872 | 986 |  |
Carrying Amount | $ 910,482,000 |  |  |
Principal Amount Subject to Delinquent Principal or Interest | $ 0 | $ 208,000 |  |
Residential loans, held-for-sale, at fair value | Fixed loans | Minimum |  |  |  |
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |  |  |  |
Interest Rate | 2.50% |  |  |
Residential loans, held-for-sale, at fair value | Fixed loans | Maximum |  |  |  |
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |  |  |  |
Interest Rate | 8.50% |  |  |
Single-family rental loans, held-for-sale |  |  |  |
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |  |  |  |
Carrying Amount | $ 144,359,000 |  |  |
Principal Amount Subject to Delinquent Principal or Interest | $ 28,263,000 |  |  |
Single-family rental loans, held-for-sale | Fixed loans |  |  |  |
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |  |  |  |
Number of Loans | loan | 38 |  |  |
Carrying Amount | $ 144,359,000 |  |  |
Principal Amount Subject to Delinquent Principal or Interest | $ 28,263,000 |  |  |
Single-family rental loans, held-for-sale | Fixed loans | Minimum |  |  |  |
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |  |  |  |
Interest Rate | 5.95% |  |  |
Single-family rental loans, held-for-sale | Fixed loans | Maximum |  |  |  |
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |  |  |  |
Interest Rate | 8.88% |  |  |
Single family rental loans held for investment at fair value |  |  |  |
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |  |  |  |
Carrying Amount | $ 2,971,725,000 |  |  |
Principal Amount Subject to Delinquent Principal or Interest | 143,623,000 |  |  |
BPL bridge loans held-for-investment |  |  |  |
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |  |  |  |
Carrying Amount | 1,341,618,000 |  |  |
Principal Amount Subject to Delinquent Principal or Interest | 96,934,000 |  |  |
Real estate loans, federal income tax basis | $ 2,130,000,000 |  |  |
BPL bridge loans held-for-investment | Fixed loans |  |  |  |
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |  |  |  |
Number of Loans | loan | 163 |  |  |
Carrying Amount | $ 329,768,000 |  |  |
Principal Amount Subject to Delinquent Principal or Interest | $ 14,552,000 |  |  |
BPL bridge loans held-for-investment | Fixed loans | Minimum |  |  |  |
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |  |  |  |
Interest Rate | 6.30% |  |  |
BPL bridge loans held-for-investment | Fixed loans | Maximum |  |  |  |
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |  |  |  |
Interest Rate | 11.75% |  |  |
BPL bridge loans held-for-investment | Floating ARM Loans |  |  |  |
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |  |  |  |
Number of Loans | loan | 762 |  |  |
Carrying Amount | $ 1,011,850,000 |  |  |
Principal Amount Subject to Delinquent Principal or Interest | $ 82,382,000 |  |  |
BPL bridge loans held-for-investment | Floating ARM Loans | Minimum |  |  |  |
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |  |  |  |
Interest Rate | 8.94% |  |  |
BPL bridge loans held-for-investment | Floating ARM Loans | Maximum |  |  |  |
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |  |  |  |
Interest Rate | 13.21% |  |  |
Consolidated Agency multifamily loans |  |  |  |
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |  |  |  |
Carrying Amount | $ 425,285,000 |  |  |
Principal Amount Subject to Delinquent Principal or Interest | $ 0 |  |  |
Consolidated Agency multifamily loans | Fixed loans |  |  |  |
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |  |  |  |
Number of Loans | loan | 28 |  |  |
Carrying Amount | $ 425,285,000 |  |  |
Principal Amount Subject to Delinquent Principal or Interest | $ 0 |  |  |
Consolidated Agency multifamily loans | Fixed loans | Minimum |  |  |  |
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |  |  |  |
Interest Rate | 4.25% |  |  |
Consolidated Agency multifamily loans | Fixed loans | Maximum |  |  |  |
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |  |  |  |
Interest Rate | 4.25% |  |  |
Legacy Sequoia |  |  |  |
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |  |  |  |
Real estate loans, federal income tax basis | $ 0 |  |  |
Legacy Sequoia | Residential loans, held-for-investment |  |  |  |
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |  |  |  |
Number of Loans | loan | 1,059 | 1,304 |  |
Principal Amount Subject to Delinquent Principal or Interest | $ 4,141,000 | $ 6,824,000 |  |
Legacy Sequoia | Residential loans, held-for-investment | ARM loans |  |  |  |
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |  |  |  |
Number of Loans | loan | 1,054 | 1,297 |  |
Carrying Amount | $ 138,562,000 |  |  |
Principal Amount Subject to Delinquent Principal or Interest | $ 4,141,000 | $ 6,824,000 |  |
Legacy Sequoia | Residential loans, held-for-investment | ARM loans | Minimum |  |  |  |
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |  |  |  |
Interest Rate | 1.25% |  |  |
Legacy Sequoia | Residential loans, held-for-investment | ARM loans | Maximum |  |  |  |
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |  |  |  |
Interest Rate | 7.88% |  |  |
Legacy Sequoia | Residential loans, held-for-investment | Hybrid ARM loans |  |  |  |
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |  |  |  |
Number of Loans | loan | 5 | 7 |  |
Carrying Amount | $ 1,177,000 |  |  |
Principal Amount Subject to Delinquent Principal or Interest | $ 0 | $ 0 |  |
Legacy Sequoia | Residential loans, held-for-investment | Hybrid ARM loans | Minimum |  |  |  |
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |  |  |  |
Interest Rate | 4.88% |  |  |
Legacy Sequoia | Residential loans, held-for-investment | Hybrid ARM loans | Maximum |  |  |  |
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |  |  |  |
Interest Rate | 6.63% |  |  |
Sequoia | Residential loans, held-for-investment |  |  |  |
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |  |  |  |
Number of Loans | loan | 6,070 | 4,624 |  |
Principal Amount Subject to Delinquent Principal or Interest | $ 8,882,000 | $ 7,799,000 |  |
Sequoia | Residential loans, held-for-investment | Hybrid ARM loans |  |  |  |
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |  |  |  |
Number of Loans | loan | 17 | 17 |  |
Carrying Amount | $ 10,581,000 |  |  |
Principal Amount Subject to Delinquent Principal or Interest | $ 0 | $ 637,000 |  |
Sequoia | Residential loans, held-for-investment | Hybrid ARM loans | Minimum |  |  |  |
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |  |  |  |
Interest Rate | 3.38% |  |  |
Sequoia | Residential loans, held-for-investment | Hybrid ARM loans | Maximum |  |  |  |
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |  |  |  |
Interest Rate | 7.63% |  |  |
Sequoia | Residential loans, held-for-investment | Fixed loans |  |  |  |
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |  |  |  |
Number of Loans | loan | 6,053 | 4,607 |  |
Carrying Amount | $ 4,629,883,000 |  |  |
Principal Amount Subject to Delinquent Principal or Interest | $ 8,882,000 | $ 7,162,000 |  |
Sequoia | Residential loans, held-for-investment | Fixed loans | Minimum |  |  |  |
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |  |  |  |
Interest Rate | 1.88% |  |  |
Sequoia | Residential loans, held-for-investment | Fixed loans | Maximum |  |  |  |
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |  |  |  |
Interest Rate | 8.50% |  |  |
Freddie Mac SLST |  |  |  |
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |  |  |  |
Real estate loans, federal income tax basis | $ 0 |  |  |
Freddie Mac SLST | Residential loans, held-for-investment | Fixed loans |  |  |  |
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |  |  |  |
Number of Loans | loan | 10,302 | 10,882 |  |
Carrying Amount | $ 1,359,242,000 |  |  |
Principal Amount Subject to Delinquent Principal or Interest | $ 132,307,000 | $ 209,397,000 |  |
Freddie Mac SLST | Residential loans, held-for-investment | Fixed loans | Minimum |  |  |  |
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |  |  |  |
Interest Rate | 2.00% |  |  |
Freddie Mac SLST | Residential loans, held-for-investment | Fixed loans | Maximum |  |  |  |
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |  |  |  |
Interest Rate | 11.00% |  |  |
Net investments in consolidated CAFL Term entities | Single family rental loans held for investment at fair value | Fixed loans |  |  |  |
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |  |  |  |
Number of Loans | loan | 1,055 |  |  |
Carrying Amount | $ 2,971,725,000 |  |  |
Principal Amount Subject to Delinquent Principal or Interest | $ 143,623,000 |  |  |
Net investments in consolidated CAFL Term entities | Single family rental loans held for investment at fair value | Fixed loans | Minimum |  |  |  |
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |  |  |  |
Interest Rate | 3.81% |  |  |
Net investments in consolidated CAFL Term entities | Single family rental loans held for investment at fair value | Fixed loans | Maximum |  |  |  |
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |  |  |  |
Interest Rate | 8.24% |  |  |
Net investments in consolidated CAFL Term entities | BPL bridge loans held-for-investment |  |  |  |
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |  |  |  |
Carrying Amount | $ 762,596,000 |  |  |
Principal Amount Subject to Delinquent Principal or Interest | $ 10,647,000 |  |  |
Net investments in consolidated CAFL Term entities | BPL bridge loans held-for-investment | Fixed loans |  |  |  |
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |  |  |  |
Number of Loans | loan | 627 |  |  |
Carrying Amount | $ 187,725,000 |  |  |
Principal Amount Subject to Delinquent Principal or Interest | $ 4,806,000 |  |  |
Net investments in consolidated CAFL Term entities | BPL bridge loans held-for-investment | Fixed loans | Minimum |  |  |  |
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |  |  |  |
Interest Rate | 6.25% |  |  |
Net investments in consolidated CAFL Term entities | BPL bridge loans held-for-investment | Fixed loans | Maximum |  |  |  |
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |  |  |  |
Interest Rate | 11.50% |  |  |
Net investments in consolidated CAFL Term entities | BPL bridge loans held-for-investment | Floating ARM Loans |  |  |  |
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |  |  |  |
Number of Loans | loan | 1,285 |  |  |
Carrying Amount | $ 574,871,000 |  |  |
Principal Amount Subject to Delinquent Principal or Interest | $ 5,841,000 |  |  |
Net investments in consolidated CAFL Term entities | BPL bridge loans held-for-investment | Floating ARM Loans | Minimum |  |  |  |
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |  |  |  |
Interest Rate | 9.29% |  |  |
Net investments in consolidated CAFL Term entities | BPL bridge loans held-for-investment | Floating ARM Loans | Maximum |  |  |  |
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |  |  |  |
Interest Rate | 14.46% |  |  |

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