Recapitalization Transactions (Details) $ / shares in Units, $ in Millions				1 Months Ended
	Oct. 28, 2025 USD ($) member $ / shares shares	Oct. 21, 2025 USD ($) shares	Aug. 20, 2025 shares	Oct. 31, 2025 USD ($) $ / shares shares	Jan. 31, 2026 USD ($) $ / shares shares	Sep. 30, 2025 USD ($)	Jan. 31, 2025 $ / shares shares	Apr. 04, 2024 $ / shares	Dec. 31, 2023 USD ($)	Nov. 30, 2023 USD ($)
Short-Term Debt [Line Items]
Liquidity maintenance covenant \| $	$ 15.0				$ 30.0				$ 30.0	$ 50.0
Number of board members \| member	7
CHS US Investments LLC
Short-Term Debt [Line Items]
Parent, ownership percentage, related party					0.598
Exchange Agreement
Short-Term Debt [Line Items]
Registration payment arrangement, price per share \| $ / shares				$ 4.08
Rights Offering Backstop Commitment
Short-Term Debt [Line Items]
Consideration received on transaction \| $		$ 3.0
Sale of stock, number of shares issued in transaction (in shares)			9,500,000
Common Class A
Short-Term Debt [Line Items]
Common stock, par value (in usd per share) \| $ / shares					$ 0.001		$ 0.001	$ 0.001
Common stock, shares, outstanding (in shares)					33,390,904		3,761,469
Common Class A \| Rights Offering Backstop Commitment
Short-Term Debt [Line Items]
Sale of stock, share rights outstanding				3,063,725
Consideration received on transaction \| $				$ 12.5
Sale of stock, number of shares issued in transaction (in shares)		742,956	2,320,769
Common Class A \| Rights Offering Backstop Commitment \| CHS US Investments LLC
Short-Term Debt [Line Items]
Sale of stock, number of shares issued in transaction (in shares)			1,624,539
Common Class A \| Rights Offering Backstop Commitment \| Gateway Runway, LLC
Short-Term Debt [Line Items]
Sale of stock, number of shares issued in transaction (in shares)			348,115
Common Class A \| Rights Offering Backstop Commitment \| S3 RR Aggregator, LLC
Short-Term Debt [Line Items]
Sale of stock, number of shares issued in transaction (in shares)			348,115
Common Class B
Short-Term Debt [Line Items]
Common stock, par value (in usd per share) \| $ / shares	$ 0.001				$ 0.001		$ 0.001	$ 0.001
Common stock, shares, outstanding (in shares)					0		155,463
Term Loan
Short-Term Debt [Line Items]
Long-term debt \| $	$ 149.5
Existing Credit Agreement \| Term Loan
Short-Term Debt [Line Items]
Long-term debt \| $	$ 100.0
Existing Credit Agreement \| Term Loan \| Common Class A
Short-Term Debt [Line Items]
Debt conversion, converted instrument, shares issued	26,175,193			26,175,193
New Credit Agreement
Short-Term Debt [Line Items]
Liquidity maintenance covenant \| $				$ 15.0		$ 30.0
New Credit Agreement \| Term Loan
Short-Term Debt [Line Items]
Long-term debt \| $	$ 120.0
New Credit Agreement \| Term Loan \| Base Rate
Short-Term Debt [Line Items]
Amended interest rate (in percent)	4.00%
New Credit Agreement \| Term Loan \| Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate
Short-Term Debt [Line Items]
Amended interest rate (in percent)			5.00%
New Credit Agreement \| Term Loan \| New Money Term Loans
Short-Term Debt [Line Items]
Long-term debt \| $	$ 20.0
Term Loan Equitization \| Common Class A \| CHS US Investments LLC
Short-Term Debt [Line Items]
Converted shares sold by lender	7,852,558
Term Loan Equitization \| Common Class A \| CHS US Investments LLC
Short-Term Debt [Line Items]
Conversion, existing debt sold by lender, amount \| $	$ 30.0
Proceeds from issuance or sale of equity \| $	$ 30.0
Common stock, shares, outstanding (in shares)	19,983,656

Rent the Runway, Inc. 10-K