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Equity Compensation Plans - Unrecognized Compensation Cost (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2024 USD ($)
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized [Roll Forward]
Unrecognized compensation cost at beginning of period	$ 37,605
Equity grants	10,703
Performance-based valuation adjustment	0
Equity grant forfeitures	(1,515)
Equity compensation expense	(5,735)
Unrecognized Compensation Cost at End of Period	41,058
Redwood Incentive Plan | Restricted Stock Units
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized [Roll Forward]
Unrecognized compensation cost at beginning of period	3,166
Equity grants	3,522
Performance-based valuation adjustment	0
Equity grant forfeitures	(401)
Equity compensation expense	(711)
Unrecognized Compensation Cost at End of Period	5,576
Redwood Incentive Plan | Deferred Stock Units
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized [Roll Forward]
Unrecognized compensation cost at beginning of period	18,920
Equity grants	6,915
Performance-based valuation adjustment	0
Equity grant forfeitures	(1,114)
Equity compensation expense	(3,172)
Unrecognized Compensation Cost at End of Period	21,549
Redwood Incentive Plan | Performance Stock Units
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized [Roll Forward]
Unrecognized compensation cost at beginning of period	15,519
Equity grants	0
Performance-based valuation adjustment	0
Equity grant forfeitures	0
Equity compensation expense	(1,785)
Unrecognized Compensation Cost at End of Period	13,734
Employee Stock Purchase Plan
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized [Roll Forward]
Unrecognized compensation cost at beginning of period	0
Equity grants	266
Performance-based valuation adjustment	0
Equity grant forfeitures	0
Equity compensation expense	(67)
Unrecognized Compensation Cost at End of Period	$ 199

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- Definition

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- Definition

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- Definition

Represents the amount of equity grant forfeitures during the period.

+ References

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- Definition

Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Valuation Adjustment

+ References

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- Definition

Amount of cost capitalized for award under share-based payment arrangement.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 718
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (h)(1)(ii)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480429/718-10-50-2

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- Definition

Amount of cost not yet recognized for nonvested award under share-based payment arrangement.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 718
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (i)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480429/718-10-50-2

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