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Consolidated Agency Multifamily Loans - Schedule of Characteristics and Activity of Multifamily Loans (Details) - Multifamily securities $ in Thousands | 12 Months Ended
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Dec. 31, 2023 USD ($) loan | Dec. 31, 2022 USD ($) loan
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |  |
Number of Loans | loan | 28 | 28
Unpaid principal balance | $ | $ 438,868 | $ 447,193
Residential loans, held-for-investment, at fair value |  |
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |  |
Net market valuation gains (losses) recorded | $ | $ 9,059 | $ (40,987)
HEI at Redwood |  |
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |  |
Number of Loans | loan | 28 | 28
Unpaid principal balance | $ | $ 438,868 | $ 447,193
Fair value of loans | $ | $ 425,285 | $ 424,551
Weighted average coupon rate (as a percent) | 4.25% | 4.25%
Weighted average remaining loan term (years) | 2 years | 3 years
Number of loans in foreclosure | loan | 0 | 0
HEI at Redwood | Financing Receivables, Equal to Greater than 90 Days Past Due |  |
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |  |
Number of loans with 90+ day delinquencies | loan | 0 | 0

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