Credit Facilities - Additional Information (Detail) - USD ($)				1 Months Ended	3 Months Ended	9 Months Ended
	Oct. 10, 2017	Jul. 07, 2017	Jun. 28, 2017	Jun. 30, 2018	Oct. 28, 2017	Nov. 03, 2018	Oct. 28, 2017	Feb. 03, 2018
Line Of Credit Facility [Line Items]
Loss on extinguishment of debt					$ 4,880,000	$ 917,000	$ 4,880,000
Revolving line of credit, interest rate description						Borrowings under the revolving line of credit 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						$ 107,500,000		$ 279,469,000
Credit Agreement [Member]
Line Of Credit Facility [Line Items]
Agreement, date						Jun. 28, 2017
Revolving Credit Facility [Member]
Line Of Credit Facility [Line Items]
Availability under the revolving line of credit						$ 359,100,000
Outstanding revolving line of credit						107,500,000
Outstanding letters of credit						12,800,000
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] | 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] | Maximum [Member] | Scenario, Plan Subject to Satisfaction of Conditions [Member]
Line Of Credit Facility [Line Items]
Line of credit			800,000,000
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] | 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]
Loss on extinguishment of debt						$ 500,000
Prepayment penalties upon early extinguishment of debt				$ 0
Outstanding revolving line of credit								$ 79,499,000
LILO Term Loan Facility [Member] | Credit Agreement [Member]
Line Of Credit Facility [Line Items]
Line of credit facility, maximum borrowing capacity			$ 80,000,000
Line of credit facility, maturity date			Jun. 28, 2022
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
Loss on extinguishment of debt					4,900,000
Amended and restated credit agreement maturity date						Jan. 07, 2023
Debt issuance costs		$ 3,600,000
Repayment of term loan	$ 100,000,000
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%
Debt instrument, basis spread on variable rate		8.25%
Variable interest rate description						one month LIBOR plus 8.25%