Other Assets and Liabilities - Schedule of Components of Other Assets (Details) - USD ($) $ in Thousands		Jun. 30, 2026	Mar. 31, 2026	Dec. 31, 2025
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]
Accrued interest receivable		$ 151,426		$ 130,955
Real estate owned		134,021	$ 121,167	124,270
Investment receivable		41,603		38,082
Receivable from joint venture partners		32,773		9,298
Margin receivable		21,458		33,439
Deferred tax asset		12,352		12,352
Operating lease right-of-use assets		$ 11,950		$ 8,902
Operating lease right-of-use asset, statement of financial position [Extensible List]		Total Other Assets		Total Other Assets
Fixed assets and leasehold improvements		$ 9,465		$ 6,354
Intangible assets		6,602		10,623
Other		49,606		39,247
Total Other Assets	[1]	471,256		$ 413,522
Fixed assets		24,000
Accumulated depreciation		$ 15,000

[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 June 30, 2026 and December 31, 2025, assets of consolidated VIEs totaled $24,372,361 and $18,927,094, respectively. At June 30, 2026 and December 31, 2025, liabilities of consolidated VIEs totaled $22,877,902 and $17,850,175, respectively. See Note 16 for further discussion.