XML 144 R128.htm IDEA: XBRL DOCUMENT
v3.8.0.1

Schedule IV - Mortgage Loans On Real Estate (Details) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2017 USD ($) | Dec. 31, 2017 USD ($) loan | Dec. 31, 2017 USD ($) Contract | Dec. 31, 2016 USD ($) loan
Residential loans, held-for-investment |  |  |  |
Mortgage Loans on Real Estate [Line Items] |  |  |  |
Carrying Amount | $ 3,687,265 | $ 3,687,265 | $ 3,687,265 |
Principal Amount Subject to Delinquent Principal or Interest | 25,457 | $ 25,457 | 25,457 |
Residential Loans Held For Sale |  |  |  |
Mortgage Loans on Real Estate [Line Items] |  |  |  |
Number of Loans | loan |  | 2,013 |  | 1,121
Carrying Amount | 1,427,945 | $ 1,427,945 | 1,427,945 |
Principal Amount Subject to Delinquent Principal or Interest | 459 | $ 459 | 459 | $ 300
Residential Loans Held For Sale | Hybrid ARM Loans |  |  |  |
Mortgage Loans on Real Estate [Line Items] |  |  |  |
Number of Loans | loan |  | 93 |  | 173
Carrying Amount | 79,347 | $ 79,347 | 79,347 |
Principal Amount Subject to Delinquent Principal or Interest | $ 0 | $ 0 | 0 | $ 0
Residential Loans Held For Sale | Hybrid ARM Loans | Minimum |  |  |  |
Mortgage Loans on Real Estate [Line Items] |  |  |  |
Interest Rate | 2.88% |  |  | 2.50%
Residential Loans Held For Sale | Hybrid ARM Loans | Maximum |  |  |  |
Mortgage Loans on Real Estate [Line Items] |  |  |  |
Interest Rate | 4.00% |  |  | 6.00%
Residential Loans Held For Sale | Fixed Loans |  |  |  |
Mortgage Loans on Real Estate [Line Items] |  |  |  |
Number of Loans | loan |  | 1,917 |  | 942
Carrying Amount | $ 1,348,300 | $ 1,348,300 | 1,348,300 |
Principal Amount Subject to Delinquent Principal or Interest | $ 459 | $ 459 | 459 | $ 0
Residential Loans Held For Sale | Fixed Loans | Minimum |  |  |  |
Mortgage Loans on Real Estate [Line Items] |  |  |  |
Interest Rate | 2.88% |  |  | 2.99%
Residential Loans Held For Sale | Fixed Loans | Maximum |  |  |  |
Mortgage Loans on Real Estate [Line Items] |  |  |  |
Interest Rate | 6.25% |  |  | 6.25%
Residential Loans Held For Sale | ARM Loans |  |  |  |
Mortgage Loans on Real Estate [Line Items] |  |  |  |
Number of Loans | loan |  | 3 |  | 6
Carrying Amount | $ 298 | $ 298 | 298 |
Principal Amount Subject to Delinquent Principal or Interest | $ 0 | $ 0 | 0 | $ 300
Residential Loans Held For Sale | ARM Loans | Minimum |  |  |  |
Mortgage Loans on Real Estate [Line Items] |  |  |  |
Interest Rate | 1.50% |  |  | 1.88%
Residential Loans Held For Sale | ARM Loans | Maximum |  |  |  |
Mortgage Loans on Real Estate [Line Items] |  |  |  |
Interest Rate | 3.00% |  |  | 2.75%
Legacy Sequoia | Residential loans, held-for-investment |  |  |  |
Mortgage Loans on Real Estate [Line Items] |  |  |  |
Number of Loans | loan |  | 3,178 |  | 3,735
Principal Amount Subject to Delinquent Principal or Interest | $ 25,457 | $ 25,457 | 25,457 | $ 30,166
Legacy Sequoia | Residential loans, held-for-investment | Hybrid ARM Loans |  |  |  |
Mortgage Loans on Real Estate [Line Items] |  |  |  |
Number of Loans | loan |  | 33 |  | 37
Carrying Amount | 13,039 | $ 13,039 | 13,039 |
Principal Amount Subject to Delinquent Principal or Interest | $ 641 | $ 641 | 641 | $ 0
Legacy Sequoia | Residential loans, held-for-investment | Hybrid ARM Loans | Minimum |  |  |  |
Mortgage Loans on Real Estate [Line Items] |  |  |  |
Interest Rate | 2.63% |  |  |
Legacy Sequoia | Residential loans, held-for-investment | Hybrid ARM Loans | Maximum |  |  |  |
Mortgage Loans on Real Estate [Line Items] |  |  |  |
Interest Rate | 3.75% |  |  |
Legacy Sequoia | Residential loans, held-for-investment | ARM Loans |  |  |  |
Mortgage Loans on Real Estate [Line Items] |  |  |  |
Number of Loans | loan |  | 3,145 |  | 3,698
Carrying Amount | $ 619,777 | $ 619,777 | 619,777 |
Principal Amount Subject to Delinquent Principal or Interest | $ 24,816 | $ 24,816 | $ 24,816 | $ 30,166
Legacy Sequoia | Residential loans, held-for-investment | ARM Loans | Minimum |  |  |  |
Mortgage Loans on Real Estate [Line Items] |  |  |  |
Interest Rate | 1.00% |  |  |
Legacy Sequoia | Residential loans, held-for-investment | ARM Loans | Maximum |  |  |  |
Mortgage Loans on Real Estate [Line Items] |  |  |  |
Interest Rate | 5.63% |  |  |
Sequoia Choice | Residential loans, held-for-investment | Fixed Loans |  |  |  |
Mortgage Loans on Real Estate [Line Items] |  |  |  |
Number of Loans |  | 806 | 806 |
Carrying Amount | $ 620,062 | $ 620,062 | $ 620,062 |
Principal Amount Subject to Delinquent Principal or Interest | $ 0 | $ 0 | 0 |
Sequoia Choice | Residential loans, held-for-investment | Fixed Loans | Minimum |  |  |  |
Mortgage Loans on Real Estate [Line Items] |  |  |  |
Interest Rate | 2.75% |  |  |
Sequoia Choice | Residential loans, held-for-investment | Fixed Loans | Maximum |  |  |  |
Mortgage Loans on Real Estate [Line Items] |  |  |  |
Interest Rate | 6.50% |  |  |
Redwood | Residential loans, held-for-investment |  |  |  |
Mortgage Loans on Real Estate [Line Items] |  |  |  |
Number of Loans | loan |  | 3,292 |  | 3,068
Principal Amount Subject to Delinquent Principal or Interest | $ 0 | $ 0 | 0 | $ 237
Redwood | Residential loans, held-for-investment | Hybrid ARM Loans |  |  |  |
Mortgage Loans on Real Estate [Line Items] |  |  |  |
Number of Loans | loan |  | 259 |  | 11
Carrying Amount | 204,771 | $ 204,771 | 204,771 |
Principal Amount Subject to Delinquent Principal or Interest | $ 0 | $ 0 | 0 | $ 0
Redwood | Residential loans, held-for-investment | Hybrid ARM Loans | Minimum |  |  |  |
Mortgage Loans on Real Estate [Line Items] |  |  |  |
Interest Rate | 2.63% |  |  |
Redwood | Residential loans, held-for-investment | Hybrid ARM Loans | Maximum |  |  |  |
Mortgage Loans on Real Estate [Line Items] |  |  |  |
Interest Rate | 6.00% |  |  |
Redwood | Residential loans, held-for-investment | Fixed Loans |  |  |  |
Mortgage Loans on Real Estate [Line Items] |  |  |  |
Number of Loans | loan |  | 3,033 |  | 3,057
Carrying Amount | $ 2,229,616 | $ 2,229,616 | 2,229,616 |
Principal Amount Subject to Delinquent Principal or Interest | $ 0 | $ 0 | $ 0 | $ 237
Redwood | Residential loans, held-for-investment | Fixed Loans | Minimum |  |  |  |
Mortgage Loans on Real Estate [Line Items] |  |  |  |
Interest Rate | 2.75% |  |  |
Redwood | Residential loans, held-for-investment | Fixed Loans | Maximum |  |  |  |
Mortgage Loans on Real Estate [Line Items] |  |  |  |
Interest Rate | 6.75% |  |  |

X
- Definition The carrying amount of the outstanding balance due under the mortgage loan. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 10 -Section S99 -Paragraph 6 -Subparagraph (SX 210.5-04.(c) Schedule IV) -URI http://asc.fasb.org/extlink&oid=27047687&loc=d3e5864-122674 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 948 -SubTopic 310 -Section S99 -Paragraph 1 -Subparagraph (SX 210.12-29) -URI http://asc.fasb.org/extlink&oid=6589523&loc=d3e617274-123014 + Details
Name: | us-gaap_MortgageLoansOnRealEstateCarryingAmountOfMortgages
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition The stated interest rate on the mortgage loan receivable or the weighted average interest rate on a group of loans. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 948 -SubTopic 310 -Section S99 -Paragraph 1 -Subparagraph (SX 210.12-29) -URI http://asc.fasb.org/extlink&oid=6589523&loc=d3e617274-123014 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 10 -Section S99 -Paragraph 6 -Subparagraph (SX 210.5-04.(c) Schedule IV) -URI http://asc.fasb.org/extlink&oid=27047687&loc=d3e5864-122674 + Details
Name: | us-gaap_MortgageLoansOnRealEstateInterestRate
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

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_MortgageLoansOnRealEstateLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Indicates the number of mortgages under each classification. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 948 -SubTopic 310 -Section S99 -Paragraph 1 -Subparagraph (SX 210.12-29.3) -URI http://asc.fasb.org/extlink&oid=6589523&loc=d3e617274-123014 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 10 -Section S99 -Paragraph 6 -Subparagraph (SX 210.5-04.(c) Schedule IV) -URI http://asc.fasb.org/extlink&oid=27047687&loc=d3e5864-122674 + Details
Name: | us-gaap_MortgageLoansOnRealEstateNumberOfLoans
Namespace Prefix: | us-gaap_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of principal due on loans that have been delinquent, which may exclude loans having interest delinquent for three months or less, as of the balance sheet date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 10 -Section S99 -Paragraph 6 -Subparagraph (SX 210.5-04.(c) Schedule IV) -URI http://asc.fasb.org/extlink&oid=27047687&loc=d3e5864-122674 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 948 -SubTopic 310 -Section S99 -Paragraph 1 -Subparagraph (SX 210.12-29.10(a)) -URI http://asc.fasb.org/extlink&oid=6589523&loc=d3e617274-123014 + Details
Name: | us-gaap_MortgageLoansOnRealEstatePrincipalAmountOfDelinquentLoans
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=rwt_ResidentialLoansHeldForSaleMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_MortgageLoansOnRealEstateLoanTypeAxis=rwt_HybridAdjustableRateMortgageLoanMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RangeAxis=us-gaap_MinimumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RangeAxis=us-gaap_MaximumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_MortgageLoansOnRealEstateLoanTypeAxis=rwt_FixedLoansMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_MortgageLoansOnRealEstateLoanTypeAxis=rwt_AdjustableRateMortgageLoansMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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

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

X
- Details
Name: | rwt_ConsolidatedEntitiesAxis=us-gaap_ParentCompanyMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |