Short-Term Debt - Remaining Maturities of Short Term Debt (Details) - USD ($) $ in Thousands		Dec. 31, 2022	Dec. 31, 2021
Short-term Debt [Line Items]
Short-term debt	[1]	$ 2,029,679	$ 2,177,362
Within 30 days
Short-term Debt [Line Items]
Short-term debt		89,216
31 to 90 days
Short-term Debt [Line Items]
Short-term debt		516,625
Over 90 days
Short-term Debt [Line Items]
Short-term debt		1,423,838
Line of Credit
Short-term Debt [Line Items]
Short-term debt		1,620,096	1,882,915
Line of Credit | Residential loans, held-for-sale, at fair value
Short-term Debt [Line Items]
Short-term debt		703,407
Line of Credit | Business Purpose Loans
Short-term Debt [Line Items]
Short-term debt		680,100
Line of Credit | Real estate securities
Short-term Debt [Line Items]
Short-term debt		124,909
Line of Credit | HEI warehouse
Short-term Debt [Line Items]
Short-term debt		111,681
Line of Credit | Within 30 days
Short-term Debt [Line Items]
Short-term debt		89,216
Line of Credit | Within 30 days | Residential loans, held-for-sale, at fair value
Short-term Debt [Line Items]
Short-term debt		0
Line of Credit | Within 30 days | Business Purpose Loans
Short-term Debt [Line Items]
Short-term debt		0
Line of Credit | Within 30 days | Real estate securities
Short-term Debt [Line Items]
Short-term debt		89,216
Line of Credit | Within 30 days | HEI warehouse
Short-term Debt [Line Items]
Short-term debt		0
Line of Credit | 31 to 90 days
Short-term Debt [Line Items]
Short-term debt		489,567
Line of Credit | 31 to 90 days | Residential loans, held-for-sale, at fair value
Short-term Debt [Line Items]
Short-term debt		186,287
Line of Credit | 31 to 90 days | Business Purpose Loans
Short-term Debt [Line Items]
Short-term debt		267,588
Line of Credit | 31 to 90 days | Real estate securities
Short-term Debt [Line Items]
Short-term debt		35,693
Line of Credit | 31 to 90 days | HEI warehouse
Short-term Debt [Line Items]
Short-term debt		0
Line of Credit | Over 90 days
Short-term Debt [Line Items]
Short-term debt		1,041,313
Line of Credit | Over 90 days | Residential loans, held-for-sale, at fair value
Short-term Debt [Line Items]
Short-term debt		517,120
Line of Credit | Over 90 days | Business Purpose Loans
Short-term Debt [Line Items]
Short-term debt		412,512
Line of Credit | Over 90 days | Real estate securities
Short-term Debt [Line Items]
Short-term debt		0
Line of Credit | Over 90 days | HEI warehouse
Short-term Debt [Line Items]
Short-term debt		111,681
Servicer advance financing
Short-term Debt [Line Items]
Short-term debt		206,510	294,447
Servicer advance financing | Within 30 days
Short-term Debt [Line Items]
Short-term debt		0
Servicer advance financing | 31 to 90 days
Short-term Debt [Line Items]
Short-term debt		0
Servicer advance financing | Over 90 days
Short-term Debt [Line Items]
Short-term debt		206,510
Promissory notes
Short-term Debt [Line Items]
Short-term debt		27,058
Promissory notes | Within 30 days
Short-term Debt [Line Items]
Short-term debt		0
Promissory notes | 31 to 90 days
Short-term Debt [Line Items]
Short-term debt		27,058
Promissory notes | Over 90 days
Short-term Debt [Line Items]
Short-term debt		0
Convertible notes, net
Short-term Debt [Line Items]
Short-term debt		176,015	$ 0
Convertible notes, net | Within 30 days
Short-term Debt [Line Items]
Short-term debt		0
Convertible notes, net | 31 to 90 days
Short-term Debt [Line Items]
Short-term debt		0
Convertible notes, net | Over 90 days
Short-term Debt [Line Items]
Short-term debt		$ 176,015

[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, 2022 and 2021, assets of consolidated VIEs totaled $9,257,291 and $10,661,081, respectively. At December 31, 2022 and 2021, liabilities of consolidated VIEs totaled $8,270,276 and $9,619,347, respectively. See Note 4 for further discussion.