Significant Accounting Policies - Additional Information (Detail)	3 Months Ended				12 Months Ended
	Feb. 03, 2018 USD ($)	Oct. 28, 2017 USD ($)	Apr. 29, 2017 USD ($)	Jan. 28, 2017 USD ($)	Feb. 02, 2019	Feb. 03, 2018 USD ($)	Jan. 28, 2017 USD ($)	Jan. 30, 2016 USD ($)	Jan. 28, 2017 CAD ($)
Summary Of Accounting Policies [Line Items]
Cash and cash equivalents liquid investments, maturity date						90 days or less
Investment maturity period						91 days
Interest income						$ 300,000	$ 2,300,000	$ 1,500,000
Accretion of purchase discounts						100,000	300,000	100,000
Amortization of purchase premiums						100,000	1,300,000	1,200,000
Realize Gains (Losses)						0	0	0
Dividends						0	0	0
Cash and cash equivalent, FDIC insured amount	$ 250,000					250,000
Cash and cash equivalent, CDIC insured amount									$ 100,000
Allowance for doubtful accounts	1,800,000			$ 2,400,000		1,800,000	2,400,000
Inventory reserve balances	31,400,000			33,200,000		31,400,000	33,200,000
Advertising expense						$ 106,600,000	79,800,000	107,700,000
Amortization of catalog						12 months
Capitalized catalog costs and other current assets	44,122,000			61,258,000		$ 44,122,000	61,258,000
Capitalized Interest						3,300,000	2,400,000	2,300,000
Capitalized interest related to amortization of Convertible Notes debt discount						$ 3,300,000	2,400,000	2,300,000
Threshold for determining whether land rent expense is to be recorded for a Capital Lease						25.00%
Impairment to goodwill						$ 33,700,000
Percentage of estimated fair value towards income approach						80.00%
Percentage of estimated fair value towards market approach						20.00%
Remaining goodwill balance	141,893,000			173,603,000		$ 141,893,000	173,603,000
Percentage of fair value of trademarks in excess of book value						26.00%
Impairment charge on long-lived assets						$ 0	0	0
Additional impairment for corporate assets and other long-lived assets						0	0	0
Liability for lease losses	7,100,000			3,188,000		$ 7,100,000	3,188,000
Sale price of aircraft			$ 5,200,000
Costs incurred in disposal of asset			$ 300,000
Revenue recognized on membership period						1 year
Customer deposits						50.00%
Revenue recognition, gift cards, breakage						$ 3,000,000	3,000,000	$ 2,000,000
Liabilities related to health care coverage	2,700,000			2,800,000		2,700,000	2,800,000
Liabilities related to workers' compensation	3,300,000			3,100,000		$ 3,300,000	$ 3,100,000
U.S. corporate income tax rate						33.70%	35.00%	35.00%
Tax act, provisional income tax expense						$ 7,000,000
Tax act, provisional income tax expense, remeasurement of net deferred tax assets						6,000,000
Tax act, provisional income tax expense, estimate of transition tax						1,000,000
Accounting Standard Update 2016-09 [Member]
Summary Of Accounting Policies [Line Items]
Excess tax benefit in provision for income taxes						7,000,000
Scenario, Plan [Member]
Summary Of Accounting Policies [Line Items]
U.S. corporate income tax rate					21.00%
Selling, General and Administrative Expenses [Member]
Summary Of Accounting Policies [Line Items]
Impairment charge, reclassified				4,800,000
RHCA Integration Into RH Platform [Member]
Summary Of Accounting Policies [Line Items]
Liability for lease losses				3,200,000			$ 3,200,000
Restructuring related costs impact to selling, general and administrative expenses				10,600,000
Inventory impairment				2,700,000
Other associated costs				300,000
Restructuring related costs impact to cost of goods sold				1,100,000
RHCA Integration Into RH Platform [Member] | Distribution Center Closures [Member]
Summary Of Accounting Policies [Line Items]
Liability for lease losses		$ 2,100,000
Employee termination benefits		900,000
Restructuring related costs impact to selling, general and administrative expenses		3,000,000
RH Segment [Member]
Summary Of Accounting Policies [Line Items]
Impairment to goodwill						0	0	$ 0
Remaining goodwill balance	124,448,000			124,374,000		124,448,000	124,374,000
Impairment to trademarks and domain names						0	0	$ 0
RH Segment [Member] | RHCA Integration Into RH Platform [Member]
Summary Of Accounting Policies [Line Items]
Liability for lease losses	4,400					4,400
Waterworks [Member]
Summary Of Accounting Policies [Line Items]
Impairment to goodwill	33,700,000					33,700,000
Remaining goodwill balance	17,445,000			49,229,000		17,445,000	49,229,000
Impairment to trademarks and domain names						$ 0	0
Maximum [Member]
Summary Of Accounting Policies [Line Items]
U.S. corporate income tax rate						35.00%
Computer Software [Member] | Maximum [Member]
Summary Of Accounting Policies [Line Items]
Property and Equipment, Useful Life						10 years
Computer Software [Member] | Minimum [Member]
Summary Of Accounting Policies [Line Items]
Property and Equipment, Useful Life						3 years
Capitalized Property and Equipment [Member] | RHCA Integration Into RH Platform [Member]
Summary Of Accounting Policies [Line Items]
Restructuring related costs, including loss on disposal				5,500,000
Capitalized Property and Equipment [Member] | RHCA Integration Into RH Platform [Member] | Distribution Center Closures [Member]
Summary Of Accounting Policies [Line Items]
Restructuring related costs, including loss on disposal		$ 2,100,000
Other Current Liabilities [Member]
Summary Of Accounting Policies [Line Items]
Product recall accrual	1,200,000			4,300,000		$ 1,200,000	4,300,000
Other Non-Current Obligations [Member] | RHCA Integration Into RH Platform [Member]
Summary Of Accounting Policies [Line Items]
Liability for lease losses	7,100,000			$ 3,200,000		7,100,000	$ 3,200,000
Other Non-Current Obligations [Member] | RHCA Integration Into RH Platform [Member] | Distribution Center Closures [Member]
Summary Of Accounting Policies [Line Items]
Liability for lease losses	$ 2,600,000					$ 2,600,000