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Fair Value of Financial Instruments - Fair Value Hierarchy (Details) - USD ($) $ in Thousands | 9 Months Ended |
--- | --- | ---
Sep. 30, 2022 | Dec. 31, 2021
Assets: |  |
Total assets carried at fair value | $ 6,543,373 | $ 5,562,034
Liabilities: |  |
Securitized debt | 2,860,253 | 1,316,131
Residential whole loans, at fair value |  |
Assets: |  |
Residential whole loans, at fair value | 6,315,966 | 5,305,349
Liabilities: |  |
Total liabilities carried at fair value | 4,397,470 | 3,266,773
Securities, at fair value |  |
Assets: |  |
Securities, at fair value | 227,407 | 256,685
Agreements with Non-mark-to-market Collateral Provisions |  |
Liabilities: |  |
Liabilities carried at fair value | 604,721 | 1,322,362
Agreements with Mark-to-market Collateral Provisions |  |
Liabilities: |  |
Liabilities carried at fair value | 932,496 | 628,280
Level 1 |  |
Assets: |  |
Total assets carried at fair value | 0 | 0
Liabilities: |  |
Securitized debt | 0 | 0
Level 1 | Residential whole loans, at fair value |  |
Assets: |  |
Residential whole loans, at fair value | 0 | 0
Liabilities: |  |
Total liabilities carried at fair value | 0 | 0
Level 1 | Securities, at fair value |  |
Assets: |  |
Securities, at fair value | 0 | 0
Level 1 | Agreements with Non-mark-to-market Collateral Provisions |  |
Liabilities: |  |
Liabilities carried at fair value | 0 | 0
Level 1 | Agreements with Mark-to-market Collateral Provisions |  |
Liabilities: |  |
Liabilities carried at fair value | 0 | 0
Level 2 |  |
Assets: |  |
Total assets carried at fair value | 1,080,403 | 1,339,450
Liabilities: |  |
Securitized debt | 2,860,253 | 1,316,131
Transfer to Level 2 | 508,600 |
Level 2 | Residential whole loans, at fair value |  |
Assets: |  |
Residential whole loans, at fair value | 852,996 | 1,082,765
Liabilities: |  |
Total liabilities carried at fair value | 2,860,253 | 1,316,131
Level 2 | Securities, at fair value |  |
Assets: |  |
Securities, at fair value | 227,407 | 256,685
Level 2 | Agreements with Non-mark-to-market Collateral Provisions |  |
Liabilities: |  |
Liabilities carried at fair value | 0 | 0
Level 2 | Agreements with Mark-to-market Collateral Provisions |  |
Liabilities: |  |
Liabilities carried at fair value | 0 | 0
Level 3 |  |
Assets: |  |
Total assets carried at fair value | 5,462,970 | 4,222,584
Liabilities: |  |
Securitized debt | 0 | 0
Level 3 | Residential whole loans, at fair value |  |
Assets: |  |
Residential whole loans, at fair value | 5,462,970 | 4,222,584
Liabilities: |  |
Total liabilities carried at fair value | 1,537,217 | 1,950,642
Level 3 | Securities, at fair value |  |
Assets: |  |
Securities, at fair value | 0 | 0
Level 3 | Agreements with Non-mark-to-market Collateral Provisions |  |
Liabilities: |  |
Liabilities carried at fair value | 604,721 | 1,322,362
Level 3 | Agreements with Mark-to-market Collateral Provisions |  |
Liabilities: |  |
Liabilities carried at fair value | $ 932,496 | $ 628,280

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- Definition Fair value portion of probable future economic benefits obtained or controlled by an entity as a result of past transactions or events. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=126976982&loc=d3e19207-110258 + Details
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- Definition Amount of transfers of financial instrument classified as an asset out of level 3 of the fair value hierarchy. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(3) -URI https://asc.fasb.org/extlink&oid=126976982&loc=d3e19207-110258 + Details
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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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- Definition Fair value of financial obligations, including, but not limited to, debt instruments, derivative liabilities, federal funds purchased and sold under agreements to repurchase, securities loaned or sold under agreements to repurchase, financial instruments sold not yet purchased, guarantees, line of credit, loans and notes payable, servicing liability, and trading liabilities. + References No definition available. + Details
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- Definition Fair value portion of an agreement for an unconditional promise by the maker to pay the holder a definite sum of money at a future date. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 10 -URI https://asc.fasb.org/extlink&oid=123594938&loc=d3e13433-108611 + Details
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