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v3.22.2.2

Securities, at Fair Value - Narrative (Details) - USD ($) |  | 3 Months Ended | 12 Months Ended |  |  |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | ---
Dec. 31, 2020 | Mar. 31, 2020 | Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019 | Sep. 30, 2021 | Jun. 30, 2021 | Mar. 31, 2021 | Sep. 30, 2020 | Jun. 30, 2020
Debt Securities, Available-for-sale [Line Items] |  |  |  |  |  |  |  |  |  |
Securities, at fair value | $ 399,999,000 |  | $ 256,685,000 | $ 399,999,000 |  |  |  |  |  |
Minimum term of fixed rate mortgages underlying MBS |  |  | 15 years |  |  |  |  |  |  |
Maximum term of fixed rate mortgages underlying MBS |  |  | 30 years |  |  |  |  |  |  |
Allowance for credit loss | 86,833,000 | $ 218,011,000 | $ 39,447,000 | 86,833,000 | $ 3,025,000 | $ 44,102,000 | $ 54,261,000 | $ 63,244,000 | $ 106,246,000 | $ 136,589,000
Impairment and other gains and losses on securities available-for-sale and other assets |  |  | (33,956,000) | 425,082,000 | $ 180,000 |  |  |  |  |
Term Notes backed by MSR Related Collateral |  |  |  |  |  |  |  |  |  |
Debt Securities, Available-for-sale [Line Items] |  |  |  |  |  |  |  |  |  |
Securities, at fair value | 239,000,000 |  | 153,800,000 | 239,000,000 |  |  |  |  |  |
Amortized costs | 184,900,000 |  | 121,400,000 | 184,900,000 |  |  |  |  |  |
Gross unrealized gains | $ 54,000,000 |  | $ 32,400,000 | 54,000,000 |  |  |  |  |  |
Weighted average yield | 12.30% |  | 10.30% |  |  |  |  |  |  |
Weighted average to maturity | 8 years 8 months 12 days |  | 1 year 8 months 12 days |  |  |  |  |  |  |
Proceeds from Sale of Mortgage Servicing Rights (MSR) |  |  |  | 711,700,000 |  |  |  |  |  |
Gross realized losses |  |  |  | $ 28,700,000 |  |  |  |  |  |
Impairment |  | 280,800,000 |  |  |  |  |  |  |  |
Mortgage-backed Securities, Issued by Private Enterprises |  |  |  |  |  |  |  |  |  |
Debt Securities, Available-for-sale [Line Items] |  |  |  |  |  |  |  |  |  |
Securities, at fair value |  |  |  |  |  |  | $ 0 |  |  |
Gross unrealized losses |  |  | $ 0 |  |  |  |  |  |  |
Allowance for credit loss |  |  | $ 0 |  |  |  |  |  |  |
MBS and MSR-Related Assets |  |  |  |  |  |  |  |  |  |
Debt Securities, Available-for-sale [Line Items] |  |  |  |  |  |  |  |  |  |
Impairment and other gains and losses on securities available-for-sale and other assets |  | $ 63,500,000 |  |  |  |  |  |  |  |
Minimum | RPL/NPL MBS |  |  |  |  |  |  |  |  |  |
Debt Securities, Available-for-sale [Line Items] |  |  |  |  |  |  |  |  |  |
Debt instrument, basis spread on variable rate |  |  | 3.00% |  |  |  |  |  |  |
Debt instrument, coupon step-up period |  |  | 36 months |  |  |  |  |  |  |
Maximum | RPL/NPL MBS |  |  |  |  |  |  |  |  |  |
Debt Securities, Available-for-sale [Line Items] |  |  |  |  |  |  |  |  |  |
Debt instrument, basis spread on variable rate |  |  | 4.00% |  |  |  |  |  |  |
Debt instrument, coupon step-up period |  |  | 48 months |  |  |  |  |  |  |

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- Definition The fair value as of the balance sheet date of firm holdings in mortgages, mortgage backed securities (investment instruments that represent ownership of an undivided interest in a group of mortgages, where principal and interest from the individual mortgages are used to pay investors' principal and interest on the mortgage backed security) and asset-backed securities that are primarily paid from the cash flows of a discrete pool of receivables or other financial assets (such as credit-card receivables), either fixed or revolving, that by their terms convert into cash within a finite time period. Includes both pledged (to counterparties as collateral for financing transactions) and unpledged holdings. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 940 -SubTopic 320 -Section 45 -Paragraph 2 -URI https://asc.fasb.org/extlink&oid=35711157&loc=d3e42546-110969 + Details
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