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Residential Investor Loans - Schedule unpaid principal balance of business purpose loans (Details) $ in Thousands	Mar. 31, 2024 USD ($)
Residential Term, Single Family Rental | Redwood
Accounts, Notes, Loans and Financing Receivable [Line Items]
Fair value of loans	$ 185,581
Residential Term, Multifamily | Redwood
Accounts, Notes, Loans and Financing Receivable [Line Items]
Fair value of loans	77,467
Term Loans, Single Family Rental | CAFL
Accounts, Notes, Loans and Financing Receivable [Line Items]
Fair value of loans	2,393,902
Term Loans, Multifamily | CAFL
Accounts, Notes, Loans and Financing Receivable [Line Items]
Fair value of loans	672,661
Residential Bridge Renovate Build For Rent | Redwood
Accounts, Notes, Loans and Financing Receivable [Line Items]
Fair value of loans	602,774
Bridge Loans, Renovate Build For Rent | CAFL
Accounts, Notes, Loans and Financing Receivable [Line Items]
Fair value of loans	389,451
Residential Bridge Single Asset Bridge | Redwood
Accounts, Notes, Loans and Financing Receivable [Line Items]
Fair value of loans	23,023
Bridge Loans, Single Asset Bridge | CAFL
Accounts, Notes, Loans and Financing Receivable [Line Items]
Fair value of loans	136,475
Residential Bridge Multifamily | Redwood
Accounts, Notes, Loans and Financing Receivable [Line Items]
Fair value of loans	686,456
Bridge Loans, Multifamily | CAFL
Accounts, Notes, Loans and Financing Receivable [Line Items]
Fair value of loans	221,635
Residential Bridge Third Party Originated | Redwood
Accounts, Notes, Loans and Financing Receivable [Line Items]
Fair value of loans	24,567
Bridge Loans, Third Party Originated | CAFL
Accounts, Notes, Loans and Financing Receivable [Line Items]
Fair value of loans	4,523
Residential Term Loans | Redwood
Accounts, Notes, Loans and Financing Receivable [Line Items]
Fair value of loans	263,048
Term Loans | CAFL
Accounts, Notes, Loans and Financing Receivable [Line Items]
Fair value of loans	3,066,563
BPL bridge loans | Redwood
Accounts, Notes, Loans and Financing Receivable [Line Items]
Fair value of loans	1,336,820
Bridge Loans | CAFL
Accounts, Notes, Loans and Financing Receivable [Line Items]
Fair value of loans	$ 752,084

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- Definition

Amortized cost, after allowance for credit loss, of financing receivable. Excludes financing receivable covered under loss sharing agreement and net investment in lease.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 946
-SubTopic 210
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.6-04(5)(b))
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479617/946-210-S99-1

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 310
-SubTopic 10
-Name Accounting Standards Codification
-Section 45
-Paragraph 2
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481990/310-10-45-2

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 5
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479319/326-20-50-5

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