Accounts Payable, Accrued Expenses and Other Current Liabilities - Additional Information (Detail) (USD $) In Millions, unless otherwise specified	Aug. 02, 2014	Feb. 01, 2014
Payables And Accruals [Abstract]
Accounts payable includes negative cash balances	$ 10.0	$ 25.5

Cash And Cash Equivalents Negative Book Balances Carried By Cash Disbursement Accounts

No definition available.

Name:	rh_CashAndCashEquivalentsNegativeBookBalancesCarriedByCashDisbursementAccounts
Namespace Prefix:	rh_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant