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Home Equity Investments (HEI) - Schedule of Geographic Concentration of HEI (Details) - Geographic Concentration Risk - Investments Benchmark	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
HEI at Redwood
Schedule of Equity Method Investments [Line Items]
Concentration risk percentage	100.00%	100.00%
HEI at Redwood | California
Schedule of Equity Method Investments [Line Items]
Concentration risk percentage	48.00%	44.00%
HEI at Redwood | Florida
Schedule of Equity Method Investments [Line Items]
Concentration risk percentage	12.00%	14.00%
HEI at Redwood | Washington
Schedule of Equity Method Investments [Line Items]
Concentration risk percentage	6.00%	6.00%
HEI at Redwood | Colorado
Schedule of Equity Method Investments [Line Items]
Concentration risk percentage	6.00%	5.00%
HEI at Redwood | Arizona
Schedule of Equity Method Investments [Line Items]
Concentration risk percentage	5.00%	7.00%
HEI at Redwood | New York
Schedule of Equity Method Investments [Line Items]
Concentration risk percentage	4.00%	4.00%
HEI at Redwood | Other states (none greater than 5%)
Schedule of Equity Method Investments [Line Items]
Concentration risk percentage	19.00%	20.00%
Securitized HEI
Schedule of Equity Method Investments [Line Items]
Concentration risk percentage	100.00%	100.00%
Securitized HEI | California
Schedule of Equity Method Investments [Line Items]
Concentration risk percentage	47.00%	59.00%
Securitized HEI | Florida
Schedule of Equity Method Investments [Line Items]
Concentration risk percentage	7.00%	4.00%
Securitized HEI | Washington
Schedule of Equity Method Investments [Line Items]
Concentration risk percentage	7.00%	6.00%
Securitized HEI | Colorado
Schedule of Equity Method Investments [Line Items]
Concentration risk percentage	4.00%	4.00%
Securitized HEI | Arizona
Schedule of Equity Method Investments [Line Items]
Concentration risk percentage	6.00%	0.00%
Securitized HEI | New York
Schedule of Equity Method Investments [Line Items]
Concentration risk percentage	7.00%	11.00%
Securitized HEI | Other states (none greater than 5%)
Schedule of Equity Method Investments [Line Items]
Concentration risk percentage	22.00%	16.00%

X

- Definition

For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

+ References

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