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Asset-Backed Securities Issued - Components of Asset-Backed Securities Issued by Consolidated Securitization Entities Sponsored, Along With Other Selected Information (Details) $ in Thousands		Sep. 30, 2017 USD ($) series	Dec. 31, 2016 USD ($) series
Debt Instrument [Line Items]
Total FHLBC Borrowings	[1]	$ 2,574,439	$ 2,620,683
Asset-backed securities issued
Debt Instrument [Line Items]
Market valuation adjustments		(69,879)	(110,829)
Total FHLBC Borrowings		944,288	773,462
Asset-backed securities issued | Certificates with principal balance
Debt Instrument [Line Items]
Certificates with principal balance		1,007,185	880,517
Asset-backed securities issued | Interest-only certificates
Debt Instrument [Line Items]
Certificates with principal balance		6,982	3,774
Asset-backed securities issued | Legacy Sequoia
Debt Instrument [Line Items]
Market valuation adjustments		(75,181)	(110,829)
Total FHLBC Borrowings		$ 657,960	$ 773,462
Number of series (in series) | series		20	20
Asset-backed securities issued | Legacy Sequoia | Minimum
Debt Instrument [Line Items]
Weighted average interest rates, by series		1.20%	0.74%
Asset-backed securities issued | Legacy Sequoia | Maximum
Debt Instrument [Line Items]
Weighted average interest rates, by series		2.56%	2.23%
Asset-backed securities issued | Legacy Sequoia | Certificates with principal balance
Debt Instrument [Line Items]
Certificates with principal balance		$ 730,312	$ 880,517
Asset-backed securities issued | Legacy Sequoia | Interest-only certificates
Debt Instrument [Line Items]
Certificates with principal balance		2,829	3,774
Asset-backed securities issued | Sequoia Choice
Debt Instrument [Line Items]
Market valuation adjustments		5,302	0
Total FHLBC Borrowings		$ 286,328	$ 0
Weighted average interest rates, by series		4.53%
Number of series (in series) | series		1	0
Asset-backed securities issued | Sequoia Choice | Certificates with principal balance
Debt Instrument [Line Items]
Certificates with principal balance		$ 276,873	$ 0
Asset-backed securities issued | Sequoia Choice | Interest-only certificates
Debt Instrument [Line Items]
Certificates with principal balance		$ 4,153	$ 0
[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, 2017 and December 31, 2016, assets of consolidated VIEs totaled $995,768 and $798,317, respectively. At September 30, 2017 and December 31, 2016, liabilities of consolidated VIEs totaled $945,873 and $773,980, respectively. See Note 4 for further discussion.

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