Credit Facilities - Narrative (Detail) - USD ($)					12 Months Ended
	Sep. 20, 2019	Apr. 10, 2019	Apr. 04, 2019	Jun. 28, 2017	Feb. 01, 2020	Feb. 02, 2019	Feb. 03, 2018	Nov. 23, 2018
Line of Credit Facility
Outstanding amount					$ 53,372,000	$ 57,500,000
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%
Fixed charge coverage ratio, fixed amount available under revolving line of credit					$ 40,000,000.0
Availability under revolving line of credit for extensions of credit, fixed amount					$ 40,000,000.0
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%
Availability under revolving line of credit for extensions of credit, sweep cash to prepayment of loan description					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
Loss on extinguishment of debt-net					$ 6,472,000	917,000	$ 4,880,000
Outstanding revolving line of credit					$ 53,062,000	57,500,000
Restoration Hardware Canada, Inc.
Line of Credit Facility
Line of credit			$ 120,000,000.0
Interest rate greater than interest rate under the revolving credit facility			1.25%
Acceleration of amortization of debt issuance costs			$ 800,000
Credit Agreement
Line of Credit Facility
Agreement, date					Jun. 28, 2017
Credit Agreement | Maximum
Line of Credit Facility
Annual restricted payments								$ 3,000,000
Equipment Loan Facility
Line of Credit Facility
Aggregate amounts outstanding					$ 53,400,000
Weighted-average interest rate					4.56%
Equipment Loan Facility | Maximum
Line of Credit Facility
Maturity term					4 years
Equipment Loan Facility | Minimum
Line of Credit Facility
Maturity term					3 years
Asset based credit facility
Line of Credit Facility
Deferred financing fees					$ 2,600,000	3,400,000
Outstanding amount						57,500,000
Repaid amount of loan					380,000,000	1,008,970,000	$ 400,030,000
Outstanding revolving line of credit						57,500,000
Revolving Credit Facility
Line of Credit Facility
Aggregate amounts outstanding					0
Availability under the revolving line of credit					321,700,000
Outstanding letters of credit					$ 13,200,000
Revolving Credit Facility | Credit Agreement | Scenario, Plan Subject to Satisfaction of Conditions
Line of Credit Facility
Increase in revolving line of credit				$ 200,000,000.0
Revolving Credit Facility | Credit Agreement | Maximum
Line of Credit Facility
Availability under the revolving line of credit				600,000,000.0
Revolving Credit Facility | Credit Agreement | Maximum | Scenario, Plan Subject to Satisfaction of Conditions
Line of Credit Facility
Line of credit				800,000,000.0
Revolving Credit Facility | Credit Agreement | Minimum
Line of Credit Facility
Line of credit				600,000,000.0
Revolving Credit Facility | Credit Agreement | Restoration Hardware Canada, Inc.
Line of Credit Facility
Availability under the revolving line of credit				10,000,000.0
LILO Term Loan Facility
Line of Credit Facility
Loss on extinguishment of debt-net						$ 500,000
LILO Term Loan Facility | Credit Agreement
Line of Credit Facility
Line of credit facility, maximum borrowing capacity				$ 80,000,000.0
Second lien term loan
Line of Credit Facility
Line of credit facility, maximum borrowing capacity		$ 200,000,000.0
Line of credit facility, maturity date					Apr. 09, 2024
Repaid amount of loan	$ 200,000,000.0
Loss on extinguishment of debt-net	6,700,000
Prepayment penalty	4,000,000.0
Amortization of debt issuance costs	$ 2,700,000
Interest rate description					annual rate generally based on LIBOR plus 6.50%
Debt instrument, basis spread on variable rate		6.50%
Variable interest rate description					one-month LIBOR plus 6.50%
Equipment promissory notes
Line of Credit Facility
2021					$ 23,000,000.0
2022					7,900,000
2023					500,000
Outstanding amount					53,372,000
Outstanding revolving line of credit					53,062,000
Equipment promissory notes | Other current liabilities
Line of Credit Facility
Aggregate amounts outstanding					22,000,000.0
Equipment promissory notes | Other non-current obligations
Line of Credit Facility
Aggregate amounts outstanding					$ 31,400,000