XML 132 R122.htm IDEA: XBRL DOCUMENT
v3.23.1

Long-Term Debt - Additional Information (Details) - USD ($) | 3 Months Ended | 12 Months Ended |  |
--- | --- | --- | --- | ---
Sep. 30, 2021 | Dec. 31, 2020 | Dec. 31, 2019 | Mar. 31, 2023 | Dec. 31, 2022
Recourse Subordinate Securities Financing Receivable | Redwood |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Long-term debt, weighted average interest rate, over time |  |  | 4.21% |  |
Recourse Subordinate Securities Financing Receivable | Redwood | CAFL | Affiliated Entity |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Long-term debt, weighted average interest rate, over time | 4.75% | 4.21% |  |  |
Recourse Subordinate Securities Financing Receivable | Redwood | October 2022 through September 2023 |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Long-term debt, weighted average interest rate, over time |  |  | 5.71% |  |
Recourse Subordinate Securities Financing Receivable | Redwood | October 2023 through September 2024 |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Long-term debt, weighted average interest rate, over time |  |  | 7.21% |  |
Recourse Subordinate Securities Financing Receivable | Redwood | March 2023 through February 2024 | CAFL | Affiliated Entity |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Long-term debt, weighted average interest rate, over time |  | 5.71% |  |  |
Recourse Subordinate Securities Financing Receivable | Redwood | March 2024 through February 2025 | CAFL | Affiliated Entity |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Long-term debt, weighted average interest rate, over time |  | 7.21% |  |  |
Recourse Subordinate Securities Financing Receivable | Redwood | July 2024 through June 2025 | CAFL | Affiliated Entity |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Long-term debt, weighted average interest rate, over time | 6.25% |  |  |  |
Recourse Subordinate Securities Financing Receivable | Redwood | July 2025 to June 2026 | CAFL | Affiliated Entity |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Long-term debt, weighted average interest rate, over time | 7.75% |  |  |  |
Recourse Revolving Debt Facility | Facilities |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Limit |  |  |  | $ 50,000,000 |
Recourse Revolving Debt Facility | Facilities | SOFR |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Debt Instrument interest rate (as a percent) |  |  |  | 3.25% |
7.75% convertible senior notes | Convertible notes |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Debt Instrument interest rate (as a percent) |  |  |  | 7.75% | 7.75%

X
- Definition Contractual interest rate for funds borrowed, under the debt agreement. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 20 -Section 50 -Paragraph 1B -Subparagraph (b) -URI https://asc.fasb.org/extlink&oid=123466505&loc=SL123495323-112611 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22(a)(1)) -URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
Name: | us-gaap_DebtInstrumentInterestRateStatedPercentage
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_DebtInstrumentLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(b),22(b)) -URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
Name: | us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Weighted average interest rate of long-term debt outstanding calculated over time. + References No definition available. + Details
Name: | us-gaap_LongTermDebtWeightedAverageInterestRateOverTime
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_DebtInstrumentAxis=rwt_RecourseSubordinateSecuritiesFinancingReceivableMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | dei_LegalEntityAxis=rwt_RedwoodTrustInc.Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ConsolidatedEntitiesAxis=rwt_CAFLSecuritizationEntitiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=srt_AffiliatedEntityMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_AwardDateAxis=rwt_October2022ThroughSeptember2023Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_AwardDateAxis=rwt_October2023ThroughSeptember2024Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_AwardDateAxis=rwt_March2023ThroughFebruary2024Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_AwardDateAxis=rwt_March2024ThroughFebruary2025Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_AwardDateAxis=rwt_July2024ThroughJune2025Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_AwardDateAxis=rwt_July2025ToJune2026Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=rwt_RecourseRevolvingDebtFacilityMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_LongtermDebtTypeAxis=us-gaap_LineOfCreditMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_VariableRateAxis=us-gaap_SecuredOvernightFinancingRateSofrOvernightIndexSwapRateMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=rwt_ExchangeableSeniorNotesDue2027Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_LongtermDebtTypeAxis=us-gaap_ConvertibleDebtMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |