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Equity Compensation Plans - Additional Information (Details) - USD ($) $ in Thousands	1 Months Ended	3 Months Ended	12 Months Ended
	Dec. 31, 2020	Mar. 31, 2024	Dec. 31, 2023
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized compensation cost		$ 41,058	$ 37,605
Weighted average amortization period remaining for equity awards		2 years
Shares of common stock to be purchased in aggregate for all employees (in shares)		850,000
Number of shares purchased by employees (in shares)		785,530	763,369
Restricted Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation, vesting period (in years)		4 years
Unvested outstanding stock awards (in shares)		865,279	593,570
Number of stock awards granted (in shares)		542,719
Number of stock awards vested (in shares)		271,010
Deferred Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation, vesting period (in years)		4 years
Unvested outstanding stock awards (in shares)		5,598,779	4,821,172
Number of stock awards granted (in shares)		1,089,871
Number of stock awards vested (in shares)		2,309,485	2,284,480
Stock units distributed (in shares)		312,264
Performance Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation, vesting period (in years)		3 years
Unvested outstanding stock awards (in shares)		2,598,194	3,072,039
Number of stock awards granted (in shares)	473,845	564,975
Redwood Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common stock available for grant (in shares)		9,170,507	10,211,459
Redwood Incentive Plan | Restricted Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized compensation cost		$ 5,576	$ 3,166
Redwood Incentive Plan | Deferred Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized compensation cost		21,549	18,920
Redwood Incentive Plan | Performance Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized compensation cost		$ 13,734	$ 15,519

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