XML 109 R97.htm IDEA: XBRL DOCUMENT
v3.25.2

Other Assets and Liabilities - Narrative (Details) $ in Millions | 3 Months Ended | 6 Months Ended | 12 Months Ended
--- | --- | --- | ---
Jun. 30, 2025 USD ($) | Jun. 30, 2025 USD ($) transaction securitization_entity partnership | Dec. 31, 2024 loan
Other Assets and Other Liabilities [Line Items] |  |  |
Number of partnerships consolidated | partnership |  | 2 |
Co-investors losses | $ 2 | $ 4 |
Number of securitization transactions co-sponsored | transaction |  | 2 |
Securitization entity | securitization_entity |  | 3 |
Co-Investors Interests |  |  |
Other Assets and Other Liabilities [Line Items] |  |  |
Carrying value of interests | 23 | $ 23 |
Point Home Equity Investment Noncontrolling Interest |  |  |
Other Assets and Other Liabilities [Line Items] |  |  |
Carrying value of interests | 90 | 90 |
Co-investors losses | 2 | 7 |
Joint Venture |  |  |
Other Assets and Other Liabilities [Line Items] |  |  |
Co-investors losses | (1) | (2) |
Joint Venture | 2024 CAFL Securitization |  |  |
Other Assets and Other Liabilities [Line Items] |  |  |
Carrying value of interests | 18 | 18 |
Securitization entity | loan |  |  | 1
Joint Venture | 2025 CAFL Securitization |  |  |
Other Assets and Other Liabilities [Line Items] |  |  |
Carrying value of interests | 19 | $ 19 |
Co-investors losses | $ (7) |  |

X
- Definition Number Of Partnerships Consolidated + References No definition available. + Details
Name: | rwt_NumberOfPartnershipsConsolidated
Namespace Prefix: | rwt_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Number Of Securitization Transactions Co-Sponsored + References No definition available. + Details
Name: | rwt_NumberOfSecuritizationTransactionsCoSponsored
Namespace Prefix: | rwt_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Other Assets and Other Liabilities [Line Items] + References No definition available. + Details
Name: | rwt_OtherAssetsAndOtherLiabilitiesLineItems
Namespace Prefix: | rwt_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Securitization Entity + References No definition available. + Details
Name: | rwt_SecuritizationEntity
Namespace Prefix: | rwt_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Carrying amount of the equity interests owned by noncontrolling partners in an operating partnership included in the entity's consolidated financial statements. + References No definition available. + Details
Name: | us-gaap_MinorityInterestInOperatingPartnerships
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Aggregate amount of net income allocated to limited partners. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 5 -Publisher FASB -URI https://asc.fasb.org/1943274/2147480008/505-10-S99-5 + Details
Name: | us-gaap_NetIncomeLossAllocatedToLimitedPartners
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Details
Name: | srt_OwnershipAxis=rwt_CoInvestorsInterestsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_OwnershipAxis=rwt_PointHomeEquityInvestmentNoncontrollingInterestMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_OwnershipAxis=rwt_JointVentureMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancialInstrumentAxis=rwt_A2024CAFLSecuritizationMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancialInstrumentAxis=rwt_A2025CAFLSecuritizationMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |