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Residential Consumer Loans - Schedule of Characteristics of Residential Consumer Loans Held-for-Investment (Details) - Held-for-investment at fair value - USD ($) $ in Thousands | Jun. 30, 2025 | Dec. 31, 2024
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Securitized Jumbo Loans |  |
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |  |
Unpaid principal balance ("UPB") | $ 12,013,426 | $ 9,350,286
Average loan balance (UPB) | 875 | 842
Fair value of loans | $ 11,587,062 | $ 8,819,554
Weighted average coupon | 5.44% | 5.35%
Unpaid principal balance of loans in foreclosure | $ 15,503 | $ 10,493
Average foreclosure balance (UPB) | 646 | 552
Securitized Re-Performing Loans |  |
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |  |
Unpaid principal balance ("UPB") |  | 1,514,432
Average loan balance (UPB) |  | 155
Fair value of loans |  | $ 1,244,722
Weighted average coupon |  | 4.49%
Unpaid principal balance of loans in foreclosure |  | $ 41,913
Average foreclosure balance (UPB) |  | 185
Financing Receivables, Equal to Greater than 90 Days Past Due | Securitized Jumbo Loans |  |
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |  |
Unpaid principal balance of loans with 90+ day delinquencies | 31,322 | 19,480
Average 90+ days delinquent balance (UPB) | $ 712 | 573
Financing Receivables, Equal to Greater than 90 Days Past Due | Securitized Re-Performing Loans |  |
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items] |  |
Unpaid principal balance of loans with 90+ day delinquencies |  | 106,910
Average 90+ days delinquent balance (UPB) |  | $ 172

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- Definition Line items represent financial concepts included in a table. 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