Accounts Payable, Accrued Expenses and Other Current Liabilities - Contract Liabilities (Detail) - USD ($) $ in Millions	3 Months Ended
Apr. 30, 2022	May 01, 2021
Contract Liabilities
Revenue recognized on membership period	1 year
Gift card breakage recorded	$ 0.7	$ 0.4
Gift Card and Merchandise Credit [Member]
Contract Liabilities
Revenue related to previous deferrals related to gift cards	$ 4.7	$ 4.9
Percentage of remaining revenue recognized on gift card	75.00%

Percentage of remaining revenue recognized on gift card and merchandise credit.

No definition available.

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Namespace Prefix:	rh_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Revenue recognized on straight line basis over the membership period.

+ References

No definition available.

+ Details

Name:	rh_RevenueRecognizedOnStraightLineBasisOverTheMembershipPeriod
Namespace Prefix:	rh_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- References

No definition available.

+ Details

Name:	us-gaap_ChangeInContractWithCustomerLiabilityAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount of revenue recognized arising from contract liability from change in timeframe for performance obligation to be satisfied.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 10
-Subparagraph (e)
-URI http://asc.fasb.org/extlink&oid=123351226&loc=SL49130551-203045

+ Details

Name:	us-gaap_ContractWithCustomerLiabilityChangeInTimeframePerformanceObligationSatisfiedRevenueRecognized
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Amount of revenue recognized that was previously included in balance of obligation to transfer good or service to customer for which consideration from customer has been received or is due.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 8
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=123351226&loc=SL49130549-203045

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Details

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Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: