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Mortgage Servicing Rights - Schedule of Fair Value of MSRs and Aggregate Principal Amounts of Associated Loans (Details) - USD ($) $ in Thousands | Sep. 30, 2016 | Jun. 30, 2016 | Dec. 31, 2015 | Sep. 30, 2015 | Jun. 30, 2015 | Dec. 31, 2014
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Servicing Assets at Fair Value [Line Items] |  |  |  |  |  |  |
Mortgage servicing rights, at fair value | [1] | $ 106,009 |  | $ 191,976 |  |  |
Associated Principal |  | 13,917,172 |  | 18,266,472 |  |  |
MSRs |  |  |  |  |  |  |
Servicing Assets at Fair Value [Line Items] |  |  |  |  |  |  |
Mortgage servicing rights, at fair value |  | 106,009 | $ 110,046 | 191,976 | $ 162,726 | $ 168,462 | $ 139,293
MSRs | Conforming Loan |  |  |  |  |  |  |
Servicing Assets at Fair Value [Line Items] |  |  |  |  |  |  |
Mortgage servicing rights, at fair value |  | 69,578 |  | 133,838 |  |  |
Associated Principal |  | 8,422,222 |  | 12,560,533 |  |  |
MSRs | Jumbo Loan |  |  |  |  |  |  |
Servicing Assets at Fair Value [Line Items] |  |  |  |  |  |  |
Mortgage servicing rights, at fair value |  | 36,431 |  | 58,138 |  |  |
Associated Principal |  | $ 5,494,950 |  | $ 5,705,939 |  |  |
[1] | Our consolidated balance sheets include assets of consolidated variable interest entities (“VIEs”) that can only be used to settle obligations of these VIEs and liabilities of consolidated VIEs for which creditors do not have recourse to Redwood Trust, Inc. or its affiliates. At September 30, 2016 and December 31, 2015, assets of consolidated VIEs totaled $847,399 and $1,195,574, respectively. At September 30, 2016 and December 31, 2015, liabilities of consolidated VIEs totaled $820,391 and $1,050,861, respectively. See Note 4 for further discussion.

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- Definition Aggregate amount of servicing assets that are subsequently measured at fair value and servicing assets that are subsequently measured using the amortization method. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 860 -SubTopic 50 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6469459&loc=d3e122501-111745 + Details
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- Definition Fair value of an asset representing net future revenue from contractually specified servicing fees, late charges, and other ancillary revenues, in excess of future costs related to servicing arrangements. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 860 -SubTopic 50 -Section 50 -Paragraph 3 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=56950315&loc=d3e122625-111746 + Details
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