Other Investments - Summary of Other Investments (Details) - USD ($) $ in Thousands		Dec. 31, 2020	Dec. 31, 2019
Investment [Line Items]
Other Investments	[1]	$ 348,175	$ 358,130
Shared home appreciation options
Investment [Line Items]
Loan held-for-investment, amount		42,440	45,085
Mortgage servicing rights
Investment [Line Items]
Servicing asset, fair value		8,815	42,224
Multifamily securities
Investment [Line Items]
Loan held-for-investment, amount		0	39,802
Other
Investment [Line Items]
Loan held-for-investment, amount		31,013	30,001
Residential Loans
Investment [Line Items]
Servicing asset, fair value		231,489	169,204
Excess MSRs
Investment [Line Items]
Servicing asset, fair value		$ 34,418	$ 31,814

[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 December 31, 2020 and December 31, 2019, assets of consolidated VIEs totaled $8,141,069 and $11,931,869, respectively. At December 31, 2020 and December 31, 2019, liabilities of consolidated VIEs totaled $7,148,414 and $10,717,072, respectively. See Note 4 for further discussion.