XML 134 R137.htm IDEA: XBRL DOCUMENT v2.4.1.9

Components of Mortgage Banking Activities, Net (Detail) (USD $)
In Thousands, unless otherwise specified

12 Months Ended

Dec. 31, 2014

Dec. 31, 2013

Dec. 31, 2012

Mortgage Loans on Real Estate [Line Items]

Sequoia IO securities

$ (23,839)us-gaap_IncreaseDecreaseInTradingSecurities

$ 42,451us-gaap_IncreaseDecreaseInTradingSecurities

$ (11,702)us-gaap_IncreaseDecreaseInTradingSecurities

Risk management derivatives

(31,167)rwt_MortgageBankingActivitiesDerivativeInstrumentsNet

51,162rwt_MortgageBankingActivitiesDerivativeInstrumentsNet

(10,609)rwt_MortgageBankingActivitiesDerivativeInstrumentsNet

Mortgage banking activities, net

34,938rwt_MortgageBankingActivitiesNet

102,494rwt_MortgageBankingActivitiesNet

36,593rwt_MortgageBankingActivitiesNet

Mortgage Banking Activities

Mortgage Loans on Real Estate [Line Items]

Sequoia IO securities

(23,839)us-gaap_IncreaseDecreaseInTradingSecurities
/ us-gaap_InvestmentTypeAxis
= rwt_MortgageBankingActivitiesMember

42,451us-gaap_IncreaseDecreaseInTradingSecurities
/ us-gaap_InvestmentTypeAxis
= rwt_MortgageBankingActivitiesMember

(11,702)us-gaap_IncreaseDecreaseInTradingSecurities
/ us-gaap_InvestmentTypeAxis
= rwt_MortgageBankingActivitiesMember

Loan purchase and forward sale commitments

13,891rwt_ForwardPurchaseCommitmentFairValueHedgeLiabilityAtFairValue
/ us-gaap_InvestmentTypeAxis
= rwt_MortgageBankingActivitiesMember

(399)rwt_ForwardPurchaseCommitmentFairValueHedgeLiabilityAtFairValue
/ us-gaap_InvestmentTypeAxis
= rwt_MortgageBankingActivitiesMember

Mortgage banking activities, net

34,938rwt_MortgageBankingActivitiesNet
/ us-gaap_InvestmentTypeAxis
= rwt_MortgageBankingActivitiesMember

102,494rwt_MortgageBankingActivitiesNet
/ us-gaap_InvestmentTypeAxis
= rwt_MortgageBankingActivitiesMember

36,593rwt_MortgageBankingActivitiesNet
/ us-gaap_InvestmentTypeAxis
= rwt_MortgageBankingActivitiesMember

Mortgage Banking Activities | Residential Mortgage Banking Activities

Mortgage Loans on Real Estate [Line Items]

Loans, at fair value

51,256us-gaap_FairValueOptionChangesInFairValueGainLoss1
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= rwt_ResidentialMortgageBankingActivitiesMember
/ us-gaap_InvestmentTypeAxis
= rwt_MortgageBankingActivitiesMember

(10,493)us-gaap_FairValueOptionChangesInFairValueGainLoss1
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= rwt_ResidentialMortgageBankingActivitiesMember
/ us-gaap_InvestmentTypeAxis
= rwt_MortgageBankingActivitiesMember

37,762us-gaap_FairValueOptionChangesInFairValueGainLoss1
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= rwt_ResidentialMortgageBankingActivitiesMember
/ us-gaap_InvestmentTypeAxis
= rwt_MortgageBankingActivitiesMember

Risk management derivatives

(23,277)rwt_MortgageBankingActivitiesDerivativeInstrumentsNet
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= rwt_ResidentialMortgageBankingActivitiesMember
/ us-gaap_InvestmentTypeAxis
= rwt_MortgageBankingActivitiesMember

^[1]

47,786rwt_MortgageBankingActivitiesDerivativeInstrumentsNet
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= rwt_ResidentialMortgageBankingActivitiesMember
/ us-gaap_InvestmentTypeAxis
= rwt_MortgageBankingActivitiesMember

^[1]

(10,609)rwt_MortgageBankingActivitiesDerivativeInstrumentsNet
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= rwt_ResidentialMortgageBankingActivitiesMember
/ us-gaap_InvestmentTypeAxis
= rwt_MortgageBankingActivitiesMember

^[1]

Net gains on loans

19,713us-gaap_GainLossOnSalesOfLoansNet
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= rwt_ResidentialMortgageBankingActivitiesMember
/ us-gaap_InvestmentTypeAxis
= rwt_MortgageBankingActivitiesMember

Other

3,467us-gaap_FeesAndCommissionsOther
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= rwt_ResidentialMortgageBankingActivitiesMember
/ us-gaap_InvestmentTypeAxis
= rwt_MortgageBankingActivitiesMember

^[2]

47us-gaap_FeesAndCommissionsOther
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= rwt_ResidentialMortgageBankingActivitiesMember
/ us-gaap_InvestmentTypeAxis
= rwt_MortgageBankingActivitiesMember

^[2]

274us-gaap_FeesAndCommissionsOther
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= rwt_ResidentialMortgageBankingActivitiesMember
/ us-gaap_InvestmentTypeAxis
= rwt_MortgageBankingActivitiesMember

^[2]

Mortgage banking activities, net

21,498rwt_MortgageBankingActivitiesNet
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= rwt_ResidentialMortgageBankingActivitiesMember
/ us-gaap_InvestmentTypeAxis
= rwt_MortgageBankingActivitiesMember

79,392rwt_MortgageBankingActivitiesNet
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= rwt_ResidentialMortgageBankingActivitiesMember
/ us-gaap_InvestmentTypeAxis
= rwt_MortgageBankingActivitiesMember

35,438rwt_MortgageBankingActivitiesNet
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= rwt_ResidentialMortgageBankingActivitiesMember
/ us-gaap_InvestmentTypeAxis
= rwt_MortgageBankingActivitiesMember

Mortgage Banking Activities | Commercial Mortgage Banking Activities

Mortgage Loans on Real Estate [Line Items]

Loans, at fair value

20,789us-gaap_FairValueOptionChangesInFairValueGainLoss1
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= rwt_CommercialMortgageBankingActivitiesMember
/ us-gaap_InvestmentTypeAxis
= rwt_MortgageBankingActivitiesMember

8,694us-gaap_FairValueOptionChangesInFairValueGainLoss1
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= rwt_CommercialMortgageBankingActivitiesMember
/ us-gaap_InvestmentTypeAxis
= rwt_MortgageBankingActivitiesMember

Risk management derivatives

(7,890)rwt_MortgageBankingActivitiesDerivativeInstrumentsNet
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= rwt_CommercialMortgageBankingActivitiesMember
/ us-gaap_InvestmentTypeAxis
= rwt_MortgageBankingActivitiesMember

^[2]

3,376rwt_MortgageBankingActivitiesDerivativeInstrumentsNet
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= rwt_CommercialMortgageBankingActivitiesMember
/ us-gaap_InvestmentTypeAxis
= rwt_MortgageBankingActivitiesMember

^[2]

Net gains on loans

11,031us-gaap_GainLossOnSalesOfLoansNet
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= rwt_CommercialMortgageBankingActivitiesMember
/ us-gaap_InvestmentTypeAxis
= rwt_MortgageBankingActivitiesMember

1,155us-gaap_GainLossOnSalesOfLoansNet
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= rwt_CommercialMortgageBankingActivitiesMember
/ us-gaap_InvestmentTypeAxis
= rwt_MortgageBankingActivitiesMember

Other

541us-gaap_FeesAndCommissionsOther
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= rwt_CommercialMortgageBankingActivitiesMember
/ us-gaap_InvestmentTypeAxis
= rwt_MortgageBankingActivitiesMember

^[2]

1us-gaap_FeesAndCommissionsOther
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= rwt_CommercialMortgageBankingActivitiesMember
/ us-gaap_InvestmentTypeAxis
= rwt_MortgageBankingActivitiesMember

^[2]

Mortgage banking activities, net

$ 13,440rwt_MortgageBankingActivitiesNet
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= rwt_CommercialMortgageBankingActivitiesMember
/ us-gaap_InvestmentTypeAxis
= rwt_MortgageBankingActivitiesMember

$ 23,102rwt_MortgageBankingActivitiesNet
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= rwt_CommercialMortgageBankingActivitiesMember
/ us-gaap_InvestmentTypeAxis
= rwt_MortgageBankingActivitiesMember

$ 1,155rwt_MortgageBankingActivitiesNet
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= rwt_CommercialMortgageBankingActivitiesMember
/ us-gaap_InvestmentTypeAxis
= rwt_MortgageBankingActivitiesMember

[1]	Represents market valuation changes of derivatives that are used to manage risks associated with our accumulation of residential and commercial loans.
[2]	Amounts in this line item include other fee income and the provision for repurchase expenses, presented net.

X

- Definition

Forward Purchase Commitment Fair Value Hedge Liability At Fair Value

+ References

No definition available.

+ Details

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Namespace Prefix:	rwt_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
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X

- Definition

The aggregate net change in market value for derivative instruments associated with mortgage banking activities.

+ References

No definition available.

+ Details

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Namespace Prefix:	rwt_
Data Type:	xbrli:monetaryItemType
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X

- Definition

The net income attributable to mortgage banking activities. This includes market valuations related to residential and commercial loans, Sequoia IOs, and mortgage banking derivatives, as well as realized gains or losses associated with mortgage loan sales.

+ References

No definition available.

+ Details

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X

- Definition

For each line item in the statement of financial position, the amounts of gains and losses from fair value changes included in earnings.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 825

-SubTopic 10

-Section 50

-Paragraph 30

-Subparagraph (a)

-URI http://asc.fasb.org/extlink&oid=6957238&loc=d3e14172-108612

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X

- Definition

Fee and commission revenue earned from sources not otherwise specified in the existing taxonomy.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 942

-SubTopic 225

-Section S99

-Paragraph 1

-Subparagraph (SX 210.9-04.13)

-URI http://asc.fasb.org/extlink&oid=6879574&loc=d3e536633-122882



Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 04

-Paragraph 13

-Article 9

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X

- Definition

The net gain (loss) resulting from a sale of loans, including adjustments to record loans classified as held-for-sale at the lower-of-cost-or-market and fair value adjustments to loan held for investment purposes.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 28

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3602-108585



Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 942

-SubTopic 225

-Section S99

-Paragraph 1

-Subparagraph (SX 210.9-04.13(h))

-URI http://asc.fasb.org/extlink&oid=6879574&loc=d3e536633-122882



Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 944

-SubTopic 225

-Section S99

-Paragraph 1

-Subparagraph (SX 210.7-04.3(a))

-URI http://asc.fasb.org/extlink&oid=6879464&loc=d3e573970-122913

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Definition

Amount of increase (decrease) in the fair value of equity or debt securities classified as trading.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 28

-Subparagraph (a)

-URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3602-108585



Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 19

-URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3444-108585

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- Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
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X

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Namespace Prefix:
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