Credit Facilities - Additional Information (Detail) - USD ($)			3 Months Ended	6 Months Ended
	Jul. 07, 2017	Jun. 28, 2017	Jul. 29, 2017	Jul. 29, 2017	Jan. 28, 2017
Line Of Credit Facility [Line Items]
Amounts outstanding under credit facilities			$ 463,000,000	$ 463,000,000
Deferred financing fees			4,683,000	$ 4,683,000	$ 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.
Outstanding revolving line of credit			459,363,000	$ 459,363,000
Fixed charge coverage ratio covenant, percentage of borrowing base				10.00%
Incremental borrowing available after maintaining fixed charge coverage ratio			129,400,000	$ 129,400,000
Credit Agreement [Member]
Line Of Credit Facility [Line Items]
Agreement, date				Jun. 28, 2017
Unamortized deferred financing fees written off / expensed			100,000	$ 100,000
Credit Agreement [Member] | Other Non-current Assets [Member]
Line Of Credit Facility [Line Items]
Deferred financing fees			3,600,000	3,600,000
Second Lien Credit Agreement [Member]
Line Of Credit Facility [Line Items]
Amounts outstanding under credit facilities			100,000,000	100,000,000
Credit Facilities [Member]
Line Of Credit Facility [Line Items]
Amounts outstanding under credit facilities					$ 0
Revolving Credit Facility [Member]
Line Of Credit Facility [Line Items]
Availability under the revolving line of credit			181,100,000	181,100,000
Unamortized deferred financing fees			1,100,000	1,100,000
Outstanding revolving line of credit			283,000,000	283,000,000
Outstanding letters of credit			13,100,000	$ 13,100,000
Revolving Credit Facility [Member] | Credit Agreement [Member]
Line Of Credit Facility [Line Items]
Amended and restated credit agreement maturity date				Jun. 28, 2022
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]
Amounts outstanding under credit facilities			80,000,000	$ 80,000,000
Debt issuance costs			600,000	600,000
Outstanding revolving line of credit			79,453,000	79,453,000
LILO Term Loan Facility [Member] | Credit Agreement [Member] | Maximum [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]
Amounts outstanding under credit facilities			100,000,000	$ 100,000,000
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
Outstanding revolving line of credit			$ 96,910,000	$ 96,910,000
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%