Accounts Payable, Accrued Expenses and Other Current Liabilities - Contract Liabilities (Detail) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Oct. 29, 2022	Oct. 30, 2021	Oct. 29, 2022	Oct. 30, 2021
Contract Liabilities
Revenue, Performance Obligation, Description of Timing			We defer revenue associated with merchandise delivered via the home-delivery channel. We expect that substantially all of the deferred revenue and customer deposits as of October 29, 2022 will be recognized within the next six months as the performance obligations are satisfied. Deferred revenue also includes the unrecognized portion of the annual RH Members Program fee. New membership fees are recorded as deferred revenue when collected from customers and recognized as revenue based on expected product revenues over the annual membership period, based on historical trends of sales to members. Membership renewal fees are recorded as deferred revenue when collected from customers and are recognized as revenue on a straight-line basis over the membership period, or one year.
Revenue recognized on membership period			1 year
Gift card breakage recorded	$ 0.7	$ 0.5	$ 1.8	$ 1.4
Percentage of remaining revenue recognized on gift card			70.00%
Gift Card and Merchandise Credit [Member]
Contract Liabilities
Revenue related to previous deferrals related to gift cards	$ 5.0	$ 4.4	$ 16.0	$ 14.0