Credit Facilities - Additional Information (Detail) - USD ($)				12 Months Ended
	Oct. 10, 2017	Jul. 07, 2017	Jun. 28, 2017	Feb. 03, 2018	Jan. 28, 2017
Line Of Credit Facility [Line Items]
Deferred financing fees				$ 4,446,000	$ 1,530,000
Revolving line of credit, interest rate description				Borrowings under the revolving line of credit and LILO term loan facility are subject to interest, at the borrowers’ option, at either the bank’s reference rate or LIBOR (or, in the case of the revolving line of credit, the Bank of America “BA” Rate or the Canadian Prime Rate, as such terms are defined in the credit agreement, for Canadian borrowings denominated in Canadian dollars or the United States Index Rate or LIBOR for Canadian borrowings denominated in United States dollars) plus an applicable margin rate, in each case.
Fixed charge coverage ratio, fixed amount available under revolving line of credit				$ 40,000,000
Fixed charge coverage ratio, percentage of sum of lesser of aggregate revolving commitments and aggregate revolving borrowing base plus lesser of outstanding LILO term loan or LILO term loan borrowing base				10.00%
Fixed charge coverage ratio				1
Fixed charge coverage ratio, description				In addition, under the credit agreement, the Company is required to meet specified financial ratios in order to undertake certain actions, and the Company may be required to maintain certain levels of excess availability or meet a specified consolidated fixed-charge coverage ratio (“FCCR”). The trigger for the FCCR occurs if the domestic availability under the revolving line of credit is less than the greater of (i) $40.0 million and (ii) 10% of the sum of (a) the lesser of (x) the aggregate revolving commitments under the credit agreement and (y) the aggregate revolving borrowing base, plus (b) the lesser of (x) the then outstanding amount of the LILO term loan or (y) the LILO term loan borrowing base. If the availability under the credit agreement is less than the foregoing amount, then Restoration Hardware, Inc. is required to maintain an FCCR of at least one to one.
Availability under revolving line of credit for extensions of credit, fixed amount				$ 40,000,000
Availability under revolving line of credit for extensions of credit, percentage of sum of lesser of aggregate revolving commitments and aggregate revolving borrowing base plus lesser of outstanding LILO term loan or LILO term loan borrowing base				10.00%
Availability under revolving line of credit for extensions of credit, sweep cash to prepayment of loan decription				The credit agreement requires a daily sweep of all cash receipts and collections to prepay the loans under the agreement while (i) an event of default exists or (ii) the availability under the revolving line of credit for extensions of credit is less than the greater of (A) $40.0 million and (B) 10% of the sum of (a) the lesser of (x) the aggregate revolving commitments under the credit agreement and (y) the aggregate revolving borrowing base, plus (b) the lesser of (x) the then outstanding amount of the LILO term loan or (y) the LILO term loan borrowing base.
Outstanding revolving line of credit				$ 279,469,000
Amounts outstanding under credit facilities				$ 279,970,000
Fixed charge coverage ratio covenant, percentage of borrowing base				10.00%
Incremental borrowing available after maintaining fixed charge coverage ratio				$ 136,400,000
Loss on extinguishment of debt				$ (4,880,000)
Credit Agreement [Member]
Line Of Credit Facility [Line Items]
Agreement, date				Jun. 28, 2017
Unamortized deferred financing fees written off / expensed				$ 100,000
Credit Agreement [Member] | Other Non-current Assets [Member]
Line Of Credit Facility [Line Items]
Deferred financing fees				3,900,000
Revolving Credit Facility [Member]
Line Of Credit Facility [Line Items]
Availability under the revolving line of credit				186,400,000
Outstanding revolving line of credit				200,000,000
Outstanding letters of credit				$ 33,800,000
Revolving Credit Facility [Member] | Credit Agreement [Member]
Line Of Credit Facility [Line Items]
Amended and restated credit agreement maturity date				Jun. 28, 2022
Unamortized deferred financing fees				$ 1,100,000
Revolving Credit Facility [Member] | Credit Agreement [Member] | Maximum [Member]
Line Of Credit Facility [Line Items]
Availability under the revolving line of credit			$ 600,000,000
Revolving Credit Facility [Member] | Credit Agreement [Member] | Minimum [Member]
Line Of Credit Facility [Line Items]
Line of credit			600,000,000
Revolving Credit Facility [Member] | Credit Agreement [Member] | Scenario, Plan Subject to Satisfaction of Conditions [Member]
Line Of Credit Facility [Line Items]
Increase in revolving line of credit			200,000,000
Revolving Credit Facility [Member] | Credit Agreement [Member] | Scenario, Plan Subject to Satisfaction of Conditions [Member] | Maximum [Member]
Line Of Credit Facility [Line Items]
Line of credit			800,000,000
Revolving Credit Facility [Member] | Credit Agreement [Member] | Restoration Hardware Canada, Inc. [Member]
Line Of Credit Facility [Line Items]
Availability under the revolving line of credit			10,000,000
LILO Term Loan Facility [Member]
Line Of Credit Facility [Line Items]
Debt issuance costs				600,000
Outstanding revolving line of credit				79,499,000
Amounts outstanding under credit facilities				$ 80,000,000
LILO Term Loan Facility [Member] | Credit Agreement [Member]
Line Of Credit Facility [Line Items]
Line of credit facility, maximum borrowing capacity			$ 80,000,000
Second Lien Term Loan [Member]
Line Of Credit Facility [Line Items]
Agreement, date				Jul. 07, 2017
Line of credit facility, maximum borrowing capacity		$ 100,000,000
Amended and restated credit agreement maturity date				Jan. 07, 2023
Debt issuance costs		$ 3,600,000
Repayment of term loan	$ 100,000,000
Loss on extinguishment of debt				$ (4,900,000)
Prepayment penalty				3,000,000
Acceleration of amortization of debt issuance costs				$ 1,900,000
Interest rate description				Annual rate generally based on LIBOR plus 8.25%
Variable interest rate description				one month LIBOR plus 8.25%
Debt instrument, basis spread on variable rate		8.25%