XML 66 R54.htm IDEA: XBRL DOCUMENT
v3.10.0.1

Principles of Consolidation - Assets and Liabilities of Consolidated Variable Interest Entity's (Details) $ in Thousands | 9 Months Ended | 12 Months Ended
--- | --- | ---
Sep. 30, 2018 USD ($) Investment | Dec. 31, 2017 USD ($) Investment
Variable Interest Entity [Line Items] |  |
Assets | $ 3,693,140 | $ 1,259,774
Liabilities | 3,417,835 | 1,167,157
Total Consolidated VIEs |  |
Variable Interest Entity [Line Items] |  |
Assets | 3,693,140 | 1,259,774
Liabilities | $ 3,417,835 | $ 1,167,157
Number of VIEs (in investments) | Investment | 28 | 22
Total Consolidated VIEs | Residential loans held-for-investment, at Redwood |  |
Variable Interest Entity [Line Items] |  |
Assets | $ 2,735,153 | $ 1,252,879
Total Consolidated VIEs | Multifamily loans, held-for-investment |  |
Variable Interest Entity [Line Items] |  |
Assets | 942,165 |
Total Consolidated VIEs | Restricted cash |  |
Variable Interest Entity [Line Items] |  |
Assets | 158 | 151
Total Consolidated VIEs | Accrued interest receivable |  |
Variable Interest Entity [Line Items] |  |
Assets | 12,749 | 3,391
Total Consolidated VIEs | REO |  |
Variable Interest Entity [Line Items] |  |
Assets | 2,915 | 3,353
Total Consolidated VIEs | Accrued interest payable |  |
Variable Interest Entity [Line Items] |  |
Liabilities | 10,839 | 2,568
Total Consolidated VIEs | Accrued expenses and other liabilities |  |
Variable Interest Entity [Line Items] |  |
Liabilities | 11 | 4
Total Consolidated VIEs | Asset-backed securities issued |  |
Variable Interest Entity [Line Items] |  |
Liabilities | 3,406,985 | 1,164,585
Legacy Sequoia |  |
Variable Interest Entity [Line Items] |  |
Assets | 557,880 | 637,184
Liabilities | $ 545,513 | $ 622,982
Number of VIEs (in investments) | Investment | 20 | 20
Legacy Sequoia | Residential loans held-for-investment, at Redwood |  |
Variable Interest Entity [Line Items] |  |
Assets | $ 553,958 | $ 632,817
Legacy Sequoia | Multifamily loans, held-for-investment |  |
Variable Interest Entity [Line Items] |  |
Assets | 0 |
Legacy Sequoia | Restricted cash |  |
Variable Interest Entity [Line Items] |  |
Assets | 147 | 147
Legacy Sequoia | Accrued interest receivable |  |
Variable Interest Entity [Line Items] |  |
Assets | 860 | 867
Legacy Sequoia | REO |  |
Variable Interest Entity [Line Items] |  |
Assets | 2,915 | 3,353
Legacy Sequoia | Accrued interest payable |  |
Variable Interest Entity [Line Items] |  |
Liabilities | 590 | 537
Legacy Sequoia | Accrued expenses and other liabilities |  |
Variable Interest Entity [Line Items] |  |
Liabilities | 0 | 0
Legacy Sequoia | Asset-backed securities issued |  |
Variable Interest Entity [Line Items] |  |
Liabilities | 544,923 | 622,445
Sequoia Choice |  |
Variable Interest Entity [Line Items] |  |
Assets | 2,190,252 | 622,590
Liabilities | $ 1,994,110 | $ 544,175
Number of VIEs (in investments) | Investment | 6 | 2
Sequoia Choice | Residential loans held-for-investment, at Redwood |  |
Variable Interest Entity [Line Items] |  |
Assets | $ 2,181,195 | $ 620,062
Sequoia Choice | Multifamily loans, held-for-investment |  |
Variable Interest Entity [Line Items] |  |
Assets | 0 |
Sequoia Choice | Restricted cash |  |
Variable Interest Entity [Line Items] |  |
Assets | 11 | 4
Sequoia Choice | Accrued interest receivable |  |
Variable Interest Entity [Line Items] |  |
Assets | 9,046 | 2,524
Sequoia Choice | REO |  |
Variable Interest Entity [Line Items] |  |
Assets | 0 | 0
Sequoia Choice | Accrued interest payable |  |
Variable Interest Entity [Line Items] |  |
Liabilities | 7,643 | 2,031
Sequoia Choice | Accrued expenses and other liabilities |  |
Variable Interest Entity [Line Items] |  |
Liabilities | 11 | 4
Sequoia Choice | Asset-backed securities issued |  |
Variable Interest Entity [Line Items] |  |
Liabilities | 1,986,456 | 542,140
Freddie Mac K-Series |  |
Variable Interest Entity [Line Items] |  |
Assets | 945,008 | 0
Liabilities | $ 878,212 | $ 0
Number of VIEs (in investments) | Investment | 2 | 0
Freddie Mac K-Series | Residential loans held-for-investment, at Redwood |  |
Variable Interest Entity [Line Items] |  |
Assets | $ 0 | $ 0
Freddie Mac K-Series | Multifamily loans, held-for-investment |  |
Variable Interest Entity [Line Items] |  |
Assets | 942,165 |
Freddie Mac K-Series | Restricted cash |  |
Variable Interest Entity [Line Items] |  |
Assets | 0 | 0
Freddie Mac K-Series | Accrued interest receivable |  |
Variable Interest Entity [Line Items] |  |
Assets | 2,843 | 0
Freddie Mac K-Series | REO |  |
Variable Interest Entity [Line Items] |  |
Assets | 0 | 0
Freddie Mac K-Series | Accrued interest payable |  |
Variable Interest Entity [Line Items] |  |
Liabilities | 2,606 | 0
Freddie Mac K-Series | Accrued expenses and other liabilities |  |
Variable Interest Entity [Line Items] |  |
Liabilities | 0 | 0
Freddie Mac K-Series | Asset-backed securities issued |  |
Variable Interest Entity [Line Items] |  |
Liabilities | $ 875,606 | $ 0

X
- Definition Number of Variable Interest Entities, Acquired and Consolidated + References No definition available. + Details
Name: | rwt_NumberOfVariableInterestEntitiesAcquiredAndConsolidated
Namespace Prefix: | rwt_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition The carrying amount of the consolidated Variable Interest Entity's assets included in the reporting entity's statement of financial position. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 50 -Paragraph 3 -Subparagraph (bb) -URI http://asc.fasb.org/extlink&oid=108788376&loc=d3e5710-111685 + Details
Name: | us-gaap_VariableInterestEntityConsolidatedCarryingAmountAssets
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition The carrying amount of the consolidated Variable Interest Entity's liabilities included in the reporting entity's statement of financial position. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 50 -Paragraph 3 -Subparagraph (bb) -URI http://asc.fasb.org/extlink&oid=108788376&loc=d3e5710-111685 + Details
Name: | us-gaap_VariableInterestEntityConsolidatedCarryingAmountLiabilities
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
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_VariableInterestEntityLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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

X
- Details
Name: | us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis=rwt_ResidentialLoansHeldForInvestmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis=rwt_MultifamilyLoansHeldforInvestmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis=rwt_RestrictedCashMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis=rwt_InterestReceivableMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis=us-gaap_RealEstateInvestmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis=rwt_InterestPayableMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis=us-gaap_AccruedLiabilitiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis=us-gaap_AssetBackedSecuritiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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

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

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