Line of Credit - Additional Information (Detail) - USD ($) $ in Millions		6 Months Ended
	Nov. 24, 2014	Aug. 01, 2015	Jan. 31, 2015
Line of Credit Facility [Line Items]
Undrawn borrowing availability under the revolving line of credit		$ 516.9
Outstanding letters of credit		$ 13.2	$ 20.2
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 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.
Tenth Amended And Restated Credit Agreement [Member]
Line of Credit Facility [Line Items]
Agreement, date		Nov. 24, 2014
Revolving Credit Facility [Member] | Tenth Amended And Restated Credit Agreement [Member]
Line of Credit Facility [Line Items]
Increase in revolving line of credit	$ 182.5
Revolving Credit Facility [Member] | Tenth Amended And Restated Credit Agreement [Member] | Restoration Hardware, Inc. [Member] | Scenario, Plan Subject to Satisfaction of Conditions [Member]
Line of Credit Facility [Line Items]
Increase in revolving line of credit	200.0
Term Loan Facility [Member] | Tenth Amended And Restated Credit Agreement [Member]
Line of Credit Facility [Line Items]
Elimination of term loan facility	$ 15.0
Amended Credit Agreement [Member]
Line of Credit Facility [Line Items]
Amended and restated credit agreement maturity date		Nov. 24, 2019