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Principles of Consolidation - Cash Flows Related to Unconsolidated Variable Interest Entity's Sponsored by Redwood (Detail) (USD $) In Thousands, unless otherwise specified | 3 Months Ended
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Mar. 31, 2015 | Mar. 31, 2014
Variable Interest Entity [Line Items] |  |
Cash proceeds | $ 341,716 us-gaap_CashFlowsBetweenTransfereeAndTransferorProceedsFromNewTransfers | $ 0 us-gaap_CashFlowsBetweenTransfereeAndTransferorProceedsFromNewTransfers
MSR fees received | 3,770 us-gaap_CashFlowsBetweenTransfereeAndTransferorServicingFees | 3,423 us-gaap_CashFlowsBetweenTransfereeAndTransferorServicingFees
Funding of compensating interest | (90)us-gaap_CashFlowsBetweenTransfereeAndTransferorServicingFeeAdvances | (33)us-gaap_CashFlowsBetweenTransfereeAndTransferorServicingFeeAdvances
Cash flows received on retained securities | $ 12,645 us-gaap_CashFlowsBetweenTransferorAndTransfereeBeneficialInterest | $ 12,303 us-gaap_CashFlowsBetweenTransferorAndTransfereeBeneficialInterest

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- Definition Cash Flows between a transferor and a transferee attributable to newly transferred assets related to either a securitization, asset-backed financing arrangement, or similar transfer in which the transferor has continuing involvement with the transferred financial assets underlying the transaction (including, but not limited to, servicing, recourse, and restrictions on transferor's interests in the transferred financial assets). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 860 -SubTopic 20 -Section 50 -Paragraph 3 -Subparagraph b -URI http://asc.fasb.org/extlink&oid=13989330&loc=d3e107207-111719 + Details
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Data Type: | xbrli:monetaryItemType
Balance Type: | debit
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- Definition Cash flows between transferor and transferee in payment of service fees in advance, prior to or in contemplation of a securitization, asset-backed financing arrangement, or similar transfer in which the transferor will have continuing involvement with the transferred financial assets underlying the transaction (including, but not limited to, servicing, recourse, and restrictions on transferor's interests in the transferred financial assets). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 860 -SubTopic 20 -Section 50 -Paragraph 3 -Subparagraph d -URI http://asc.fasb.org/extlink&oid=13989330&loc=d3e107207-111719 + Details
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- Definition Cash Flows between a transferee and a transferor attributable to servicing fees related to a securitization, asset-backed financing arrangement, or similar transfer in which the transferor has continuing involvement with the transferred financial assets underlying the transaction (including, but not limited to, servicing, recourse, and restrictions on transferor's interests in the transferred financial assets). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 860 -SubTopic 20 -Section 50 -Paragraph 3 -Subparagraph d -URI http://asc.fasb.org/extlink&oid=13989330&loc=d3e107207-111719 + Details
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- Definition Cash flows between transferee and transferor in payment of the transferor's beneficial interest related to a securitization, asset-backed financing arrangement, or similar transfer in which the transferor has continuing involvement with the transferred financial assets underlying the transaction. + References No definition available. + Details
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- Details
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Period Type: | duration