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Principles of Consolidation - Summary of Redwood's Interest in Third-Party Variable Interest Entity's (Details) - REO - USD ($) $ in Thousands | Jun. 30, 2019 | Dec. 31, 2018
--- | --- | ---
Variable Interest Entity [Line Items] |  |
Assets | $ 1,237,576 | $ 1,176,161
Senior |  |
Variable Interest Entity [Line Items] |  |
Assets | 166,184 | 185,107
Mezzanine |  |
Variable Interest Entity [Line Items] |  |
Assets | 679,908 | 547,249
Subordinate |  |
Variable Interest Entity [Line Items] |  |
Assets | 373,260 | 428,713
Total Mortgage-Backed Securities |  |
Variable Interest Entity [Line Items] |  |
Assets | 1,219,352 | 1,161,069
Excess MSR |  |
Variable Interest Entity [Line Items] |  |
Assets | $ 18,224 | $ 15,092

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- Definition Carrying amount of the assets in the reporting entity's statement of financial position that relate to the reporting entity's variable interest in the Variable Interest Entity (VIE), where the reporting entity is not the VIE's primary beneficiary. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 50 -Paragraph 4 -Subparagraph a -URI http://asc.fasb.org/extlink&oid=118582676&loc=d3e5728-111685 + Details
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