Short-Term Debt - Remaining Maturities of Short Term Debt (Detail) - USD ($) $ in Thousands		Jun. 30, 2015	Dec. 31, 2014
Short-term Debt [Line Items]
Short-term debt	[1]	$ 1,367,062	$ 1,793,825
Within 30 Days
Short-term Debt [Line Items]
Short-term debt		363,099	515,552
31 to 90 days
Short-term Debt [Line Items]
Short-term debt		180,088	447,021
Over 90 days
Short-term Debt [Line Items]
Short-term debt		823,875	831,252
Residential Loans
Short-term Debt [Line Items]
Short-term debt		776,824	1,076,188
Residential Loans | 31 to 90 days
Short-term Debt [Line Items]
Short-term debt			354,064
Residential Loans | Over 90 days
Short-term Debt [Line Items]
Short-term debt		776,824	722,124
Commercial Loans
Short-term Debt [Line Items]
Short-term debt		96,849	109,128
Commercial Loans | 31 to 90 days
Short-term Debt [Line Items]
Short-term debt		52,224	0
Commercial Loans | Over 90 days
Short-term Debt [Line Items]
Short-term debt		44,625	109,128
Real Estate Securities
Short-term Debt [Line Items]
Short-term debt		493,389	608,509
Real Estate Securities | Within 30 Days
Short-term Debt [Line Items]
Short-term debt		363,099	515,552
Real Estate Securities | 31 to 90 days
Short-term Debt [Line Items]
Short-term debt		127,864	92,957
Real Estate Securities | Over 90 days
Short-term Debt [Line Items]
Short-term debt		$ 2,426	$ 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 the primary beneficiary (Redwood Trust, Inc.). At June 30, 2015 and December 31, 2014, assets of consolidated VIEs totaled $1,622,636 and $1,900,208, respectively, and liabilities of consolidated VIEs totaled $1,263,249 and $1,546,490, respectively. See Note 4 for further discussion.