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v2.4.1.9

Components of Corporate/Other (Detail) (USD $) In Thousands, unless otherwise specified | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2014 | Sep. 30, 2014 | Jun. 30, 2014 | Mar. 31, 2014 | Dec. 31, 2013 | Sep. 30, 2013 | Jun. 30, 2013 | Mar. 31, 2013 | Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2012
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Interest income | $ 65,251 us-gaap_InterestAndDividendIncomeOperating | $ 63,351 us-gaap_InterestAndDividendIncomeOperating | $ 57,993 us-gaap_InterestAndDividendIncomeOperating | $ 55,475 us-gaap_InterestAndDividendIncomeOperating | $ 57,492 us-gaap_InterestAndDividendIncomeOperating | $ 57,420 us-gaap_InterestAndDividendIncomeOperating | $ 57,719 us-gaap_InterestAndDividendIncomeOperating | $ 53,525 us-gaap_InterestAndDividendIncomeOperating | $ 242,070 us-gaap_InterestAndDividendIncomeOperating | $ 226,156 us-gaap_InterestAndDividendIncomeOperating | $ 231,384 us-gaap_InterestAndDividendIncomeOperating
Interest expense | (23,903)us-gaap_InterestExpense | (23,350)us-gaap_InterestExpense | (21,151)us-gaap_InterestExpense | (19,059)us-gaap_InterestExpense | (19,528)us-gaap_InterestExpense | (21,725)us-gaap_InterestExpense | (21,416)us-gaap_InterestExpense | (18,302)us-gaap_InterestExpense | (87,463)us-gaap_InterestExpense | (80,971)us-gaap_InterestExpense | (120,705)us-gaap_InterestExpense
Net interest income (loss) | 41,348 us-gaap_InterestIncomeExpenseNet | 40,001 us-gaap_InterestIncomeExpenseNet | 36,842 us-gaap_InterestIncomeExpenseNet | 36,416 us-gaap_InterestIncomeExpenseNet | 37,964 us-gaap_InterestIncomeExpenseNet | 35,695 us-gaap_InterestIncomeExpenseNet | 36,303 us-gaap_InterestIncomeExpenseNet | 35,223 us-gaap_InterestIncomeExpenseNet | 154,607 us-gaap_InterestIncomeExpenseNet | 145,185 us-gaap_InterestIncomeExpenseNet | 110,679 us-gaap_InterestIncomeExpenseNet
Provision for loan losses |  |  |  |  |  |  |  |  | (961)us-gaap_ProvisionForLoanLeaseAndOtherLosses | (4,737)us-gaap_ProvisionForLoanLeaseAndOtherLosses | (3,648)us-gaap_ProvisionForLoanLeaseAndOtherLosses
Mortgage banking activities, net |  |  |  |  |  |  |  |  | 34,938 rwt_MortgageBankingActivitiesNet | 102,494 rwt_MortgageBankingActivitiesNet | 36,593 rwt_MortgageBankingActivitiesNet
MSR income (loss) |  |  |  |  |  |  |  |  | (4,261)rwt_MortgageServicingRightsIncomeIncludingMarketValuationChangesOfMSRs | 20,309 rwt_MortgageServicingRightsIncomeIncludingMarketValuationChangesOfMSRs | (1,391)rwt_MortgageServicingRightsIncomeIncludingMarketValuationChangesOfMSRs
Other market valuation adjustments, net |  |  |  |  |  |  |  |  | (10,146)rwt_OtherMarketValuationAdjustments | (5,709)rwt_OtherMarketValuationAdjustments | 1,539 rwt_OtherMarketValuationAdjustments
Total non interest income, net | 10,686 us-gaap_NoninterestIncome | 28,519 us-gaap_NoninterestIncome | 1,475 us-gaap_NoninterestIncome | (4,671)us-gaap_NoninterestIncome | 24,918 us-gaap_NoninterestIncome | 5,346 us-gaap_NoninterestIncome | 53,568 us-gaap_NoninterestIncome | 58,522 us-gaap_NoninterestIncome | 36,009 us-gaap_NoninterestIncome | 142,353 us-gaap_NoninterestIncome | 91,662 us-gaap_NoninterestIncome
Realized gains, net |  |  |  |  |  |  |  |  | 15,478 us-gaap_RealizedInvestmentGainsLosses | 25,259 us-gaap_RealizedInvestmentGainsLosses | 54,921 us-gaap_RealizedInvestmentGainsLosses
Direct operating expenses | 26,462 us-gaap_OperatingExpenses | 21,406 us-gaap_OperatingExpenses | 22,282 us-gaap_OperatingExpenses | 19,973 us-gaap_OperatingExpenses | 19,670 us-gaap_OperatingExpenses | 22,320 us-gaap_OperatingExpenses | 24,430 us-gaap_OperatingExpenses | 20,187 us-gaap_OperatingExpenses | (90,123)us-gaap_OperatingExpenses | (86,607)us-gaap_OperatingExpenses | (65,633)us-gaap_OperatingExpenses
Other expense |  |  |  |  |  |  |  |  |  | (12,000)us-gaap_OtherNoninterestExpense |
Provision for income taxes |  |  |  |  |  |  |  |  | (744)us-gaap_IncomeTaxExpenseBenefit | (10,948)us-gaap_IncomeTaxExpenseBenefit | (1,291)us-gaap_IncomeTaxExpenseBenefit
Net income | 27,122 us-gaap_NetIncomeLoss | 45,097 us-gaap_NetIncomeLoss | 16,017 us-gaap_NetIncomeLoss | 12,333 us-gaap_NetIncomeLoss | 25,135 us-gaap_NetIncomeLoss | 21,929 us-gaap_NetIncomeLoss | 65,573 us-gaap_NetIncomeLoss | 60,160 us-gaap_NetIncomeLoss | 100,569 us-gaap_NetIncomeLoss | 173,246 us-gaap_NetIncomeLoss | 131,769 us-gaap_NetIncomeLoss
Legacy Consolidated VIEs |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Interest income |  |  |  |  |  |  |  |  | 25,786 us-gaap_InterestAndDividendIncomeOperating / us-gaap_ConsolidationItemsAxis = rwt_LegacyConsolidatedVariableInterestEntitiesMember | 33,663 us-gaap_InterestAndDividendIncomeOperating / us-gaap_ConsolidationItemsAxis = rwt_LegacyConsolidatedVariableInterestEntitiesMember | 92,296 us-gaap_InterestAndDividendIncomeOperating / us-gaap_ConsolidationItemsAxis = rwt_LegacyConsolidatedVariableInterestEntitiesMember
Interest expense |  |  |  |  |  |  |  |  | (20,844)us-gaap_InterestExpense / us-gaap_ConsolidationItemsAxis = rwt_LegacyConsolidatedVariableInterestEntitiesMember | (25,876)us-gaap_InterestExpense / us-gaap_ConsolidationItemsAxis = rwt_LegacyConsolidatedVariableInterestEntitiesMember | (95,807)us-gaap_InterestExpense / us-gaap_ConsolidationItemsAxis = rwt_LegacyConsolidatedVariableInterestEntitiesMember
Net interest income (loss) |  |  |  |  |  |  |  |  | 4,942 us-gaap_InterestIncomeExpenseNet / us-gaap_ConsolidationItemsAxis = rwt_LegacyConsolidatedVariableInterestEntitiesMember | 7,787 us-gaap_InterestIncomeExpenseNet / us-gaap_ConsolidationItemsAxis = rwt_LegacyConsolidatedVariableInterestEntitiesMember | (3,511)us-gaap_InterestIncomeExpenseNet / us-gaap_ConsolidationItemsAxis = rwt_LegacyConsolidatedVariableInterestEntitiesMember
Provision for loan losses |  |  |  |  |  |  |  |  | (877)us-gaap_ProvisionForLoanLeaseAndOtherLosses / us-gaap_ConsolidationItemsAxis = rwt_LegacyConsolidatedVariableInterestEntitiesMember | (1,449)us-gaap_ProvisionForLoanLeaseAndOtherLosses / us-gaap_ConsolidationItemsAxis = rwt_LegacyConsolidatedVariableInterestEntitiesMember | (171)us-gaap_ProvisionForLoanLeaseAndOtherLosses / us-gaap_ConsolidationItemsAxis = rwt_LegacyConsolidatedVariableInterestEntitiesMember
Mortgage banking activities, net |  |  |  |  |  |  |  |  | 0 rwt_MortgageBankingActivitiesNet / us-gaap_ConsolidationItemsAxis = rwt_LegacyConsolidatedVariableInterestEntitiesMember | 0 rwt_MortgageBankingActivitiesNet / us-gaap_ConsolidationItemsAxis = rwt_LegacyConsolidatedVariableInterestEntitiesMember | 0 rwt_MortgageBankingActivitiesNet / us-gaap_ConsolidationItemsAxis = rwt_LegacyConsolidatedVariableInterestEntitiesMember
MSR income (loss) |  |  |  |  |  |  |  |  | 0 rwt_MortgageServicingRightsIncomeIncludingMarketValuationChangesOfMSRs / us-gaap_ConsolidationItemsAxis = rwt_LegacyConsolidatedVariableInterestEntitiesMember | 0 rwt_MortgageServicingRightsIncomeIncludingMarketValuationChangesOfMSRs / us-gaap_ConsolidationItemsAxis = rwt_LegacyConsolidatedVariableInterestEntitiesMember | 0 rwt_MortgageServicingRightsIncomeIncludingMarketValuationChangesOfMSRs / us-gaap_ConsolidationItemsAxis = rwt_LegacyConsolidatedVariableInterestEntitiesMember
Other market valuation adjustments, net |  |  |  |  |  |  |  |  | (894)rwt_OtherMarketValuationAdjustments / us-gaap_ConsolidationItemsAxis = rwt_LegacyConsolidatedVariableInterestEntitiesMember | (613)rwt_OtherMarketValuationAdjustments / us-gaap_ConsolidationItemsAxis = rwt_LegacyConsolidatedVariableInterestEntitiesMember | 6,144 rwt_OtherMarketValuationAdjustments / us-gaap_ConsolidationItemsAxis = rwt_LegacyConsolidatedVariableInterestEntitiesMember
Total non interest income, net |  |  |  |  |  |  |  |  | (1,771)us-gaap_NoninterestIncome / us-gaap_ConsolidationItemsAxis = rwt_LegacyConsolidatedVariableInterestEntitiesMember | (2,062)us-gaap_NoninterestIncome / us-gaap_ConsolidationItemsAxis = rwt_LegacyConsolidatedVariableInterestEntitiesMember | 5,973 us-gaap_NoninterestIncome / us-gaap_ConsolidationItemsAxis = rwt_LegacyConsolidatedVariableInterestEntitiesMember
Realized gains, net |  |  |  |  |  |  |  |  | 1,701 us-gaap_RealizedInvestmentGainsLosses / us-gaap_ConsolidationItemsAxis = rwt_LegacyConsolidatedVariableInterestEntitiesMember | 284 us-gaap_RealizedInvestmentGainsLosses / us-gaap_ConsolidationItemsAxis = rwt_LegacyConsolidatedVariableInterestEntitiesMember | 22,470 us-gaap_RealizedInvestmentGainsLosses / us-gaap_ConsolidationItemsAxis = rwt_LegacyConsolidatedVariableInterestEntitiesMember
Direct operating expenses |  |  |  |  |  |  |  |  | (165)us-gaap_OperatingExpenses / us-gaap_ConsolidationItemsAxis = rwt_LegacyConsolidatedVariableInterestEntitiesMember | (231)us-gaap_OperatingExpenses / us-gaap_ConsolidationItemsAxis = rwt_LegacyConsolidatedVariableInterestEntitiesMember | (148)us-gaap_OperatingExpenses / us-gaap_ConsolidationItemsAxis = rwt_LegacyConsolidatedVariableInterestEntitiesMember
Net income |  |  |  |  |  |  |  |  | 4,707 us-gaap_NetIncomeLoss / us-gaap_ConsolidationItemsAxis = rwt_LegacyConsolidatedVariableInterestEntitiesMember | 5,778 us-gaap_NetIncomeLoss / us-gaap_ConsolidationItemsAxis = rwt_LegacyConsolidatedVariableInterestEntitiesMember | 24,784 us-gaap_NetIncomeLoss / us-gaap_ConsolidationItemsAxis = rwt_LegacyConsolidatedVariableInterestEntitiesMember
Other |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Interest income |  |  |  |  |  |  |  |  | 12 us-gaap_InterestAndDividendIncomeOperating / us-gaap_ConsolidationItemsAxis = rwt_AllOtherMember | 157 us-gaap_InterestAndDividendIncomeOperating / us-gaap_ConsolidationItemsAxis = rwt_AllOtherMember | 60 us-gaap_InterestAndDividendIncomeOperating / us-gaap_ConsolidationItemsAxis = rwt_AllOtherMember
Interest expense |  |  |  |  |  |  |  |  | (26,159)us-gaap_InterestExpense / us-gaap_ConsolidationItemsAxis = rwt_AllOtherMember | (22,184)us-gaap_InterestExpense / us-gaap_ConsolidationItemsAxis = rwt_AllOtherMember | (9,531)us-gaap_InterestExpense / us-gaap_ConsolidationItemsAxis = rwt_AllOtherMember
Net interest income (loss) |  |  |  |  |  |  |  |  | (26,147)us-gaap_InterestIncomeExpenseNet / us-gaap_ConsolidationItemsAxis = rwt_AllOtherMember | (22,027)us-gaap_InterestIncomeExpenseNet / us-gaap_ConsolidationItemsAxis = rwt_AllOtherMember | (9,471)us-gaap_InterestIncomeExpenseNet / us-gaap_ConsolidationItemsAxis = rwt_AllOtherMember
Mortgage banking activities, net |  |  |  |  |  |  |  |  | 0 rwt_MortgageBankingActivitiesNet / us-gaap_ConsolidationItemsAxis = rwt_AllOtherMember | 0 rwt_MortgageBankingActivitiesNet / us-gaap_ConsolidationItemsAxis = rwt_AllOtherMember | 0 rwt_MortgageBankingActivitiesNet / us-gaap_ConsolidationItemsAxis = rwt_AllOtherMember
MSR income (loss) |  |  |  |  |  |  |  |  | 0 rwt_MortgageServicingRightsIncomeIncludingMarketValuationChangesOfMSRs / us-gaap_ConsolidationItemsAxis = rwt_AllOtherMember | 0 rwt_MortgageServicingRightsIncomeIncludingMarketValuationChangesOfMSRs / us-gaap_ConsolidationItemsAxis = rwt_AllOtherMember | 0 rwt_MortgageServicingRightsIncomeIncludingMarketValuationChangesOfMSRs / us-gaap_ConsolidationItemsAxis = rwt_AllOtherMember
Other market valuation adjustments, net |  |  |  |  |  |  |  |  | (130)rwt_OtherMarketValuationAdjustments / us-gaap_ConsolidationItemsAxis = rwt_AllOtherMember |  |
Total non interest income, net |  |  |  |  |  |  |  |  | (130)us-gaap_NoninterestIncome / us-gaap_ConsolidationItemsAxis = rwt_AllOtherMember |  |
Direct operating expenses |  |  |  |  |  |  |  |  | (37,289)us-gaap_OperatingExpenses / us-gaap_ConsolidationItemsAxis = rwt_AllOtherMember | (49,882)us-gaap_OperatingExpenses / us-gaap_ConsolidationItemsAxis = rwt_AllOtherMember | (35,475)us-gaap_OperatingExpenses / us-gaap_ConsolidationItemsAxis = rwt_AllOtherMember
Other expense |  |  |  |  |  |  |  |  | 1,600 us-gaap_OtherNoninterestExpense / us-gaap_ConsolidationItemsAxis = rwt_AllOtherMember | (12,000)us-gaap_OtherNoninterestExpense / us-gaap_ConsolidationItemsAxis = rwt_AllOtherMember |
Provision for income taxes |  |  |  |  |  |  |  |  | (76)us-gaap_IncomeTaxExpenseBenefit / us-gaap_ConsolidationItemsAxis = rwt_AllOtherMember | 1,853 us-gaap_IncomeTaxExpenseBenefit / us-gaap_ConsolidationItemsAxis = rwt_AllOtherMember | (1,278)us-gaap_IncomeTaxExpenseBenefit / us-gaap_ConsolidationItemsAxis = rwt_AllOtherMember
Net income |  |  |  |  |  |  |  |  | $ (62,041)us-gaap_NetIncomeLoss / us-gaap_ConsolidationItemsAxis = rwt_AllOtherMember | $ (82,056)us-gaap_NetIncomeLoss / us-gaap_ConsolidationItemsAxis = rwt_AllOtherMember | $ (46,224)us-gaap_NetIncomeLoss / us-gaap_ConsolidationItemsAxis = rwt_AllOtherMember

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- 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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- Definition The aggregate net change in market value for certain assets and liabilities that was included in earnings for the period. This includes changes in market values for assets and liabilities accounted for at fair value and impairments on loans held-for-sale and real estate owned. This excludes valuation adjustments recorded in Mortgage Banking Activities, Net. + References No definition available. + Details
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- Definition Amount of expense related loan transactions, lease transactions, credit loss from transactions other than loan and lease transactions, and other loss based on assessment of uncollectability from the counterparty to reduce the account to their net realizable value. + 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 SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Paragraph 11 -Article 9 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 225 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-04.11) -URI http://asc.fasb.org/extlink&oid=6879574&loc=d3e536633-122882 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (c)(2) -URI http://asc.fasb.org/extlink&oid=35738203&loc=SL6953423-111524 + Details
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