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v3.21.2

Use of Special Purpose Entities and Variable Interest Entities (Loan Securitization Transaction) (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended | 12 Months Ended
--- | --- | --- | ---
Jun. 30, 2021 | Mar. 31, 2021 | Jun. 30, 2021 | Dec. 31, 2020
Asset-backed Securities, Securitized Loans and Receivables |  |  |  |
Variable Interest Entity [Line Items] |  |  |  |
Aggregate unpaid principal balance of residential whole loans sold | $ 2,756,479 |  | $ 2,756,479 | $ 2,232,561
Outstanding amount of Senior Bonds, at carrying value | 1,405,685 |  | 1,405,685 | 645,027
Outstanding amount of Senior Bonds, at fair value | 640,696 |  | 640,696 | 869,482
Outstanding amount of Senior Bonds, total | $ 2,046,381 |  | $ 2,046,381 | $ 1,514,509
Weighted average interest rate | 1.57% |  | 1.57% | 2.11%
Weighted average contractual maturity of Senior Bonds |  | 41 years | 41 years |
Cash received |  | $ 1,853,408 | $ 2,511,087 |
Debt issuance cost | $ 6,800 |  | 6,800 | $ 3,200
Senior notes |  |  |  |
Variable Interest Entity [Line Items] |  |  |  |
Cash received | 805,900 |  |  |
Senior notes | Asset-backed Securities, Securitized Loans and Receivables |  |  |  |
Variable Interest Entity [Line Items] |  |  |  |
Principal amount of Securitized debt | 2,511,113 |  | 2,511,113 | 1,862,068
Proceeds from Senior bond sold with Step up feature |  |  | $ 445,200 | 568,700
Debt instrument, coupon step-up period |  |  | 36 months |
Senior notes | Asset-backed Securities, Securitized Loans and Receivables | Minimum |  |  |  |
Variable Interest Entity [Line Items] |  |  |  |
Debt instrument, basis spread on variable rate |  |  | 1.00% |
Senior notes | Asset-backed Securities, Securitized Loans and Receivables | Maximum |  |  |  |
Variable Interest Entity [Line Items] |  |  |  |
Debt instrument, basis spread on variable rate |  |  | 3.00% |
Senior Support Certificates | Asset-backed Securities, Securitized Loans and Receivables |  |  |  |
Variable Interest Entity [Line Items] |  |  |  |
Principal amount of Securitized debt | $ 215,157 |  | $ 215,157 | $ 268,548

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