Significant Accounting Policies - Additional Information (Detail)	3 Months Ended	12 Months Ended
	Jan. 28, 2017 USD ($)	Jan. 28, 2017 USD ($) AssetGroup	Jan. 30, 2016 USD ($)	Jan. 31, 2015 USD ($)	Oct. 29, 2016 USD ($)	Jul. 30, 2016 USD ($)	Jun. 30, 2016 USD ($)	Apr. 30, 2016 USD ($)	Jan. 31, 2016 USD ($)	Jan. 30, 2016 CAD	Feb. 01, 2014 USD ($)	Jan. 31, 2014 USD ($)
Summary Of Accounting Policies [Line Items]
Cash and cash equivalents	$ 87,023,000	$ 87,023,000	$ 331,467,000	$ 145,686,000	$ 47,135,000	$ 37,163,000		$ 234,668,000	$ 331,467,000		$ 13,389,000	$ 13,389,000
Accounts payable and accrued expenses	226,980,000	$ 226,980,000	262,284,000		222,788,000	222,298,000		246,483,000
Cash and cash equivalents liquid investments, maturity date		90 days or less
Investment maturity period		91 days
Interest income		$ 2,300,000	1,500,000
Accretion of purchase discounts		300,000	100,000
Amortization of purchase premiums		1,300,000	1,200,000
Realize Gains (Losses)		0	0
Dividends		0	0
Cash and cash equivalent, FDIC insured amount	250,000	250,000
Cash and cash equivalent, CDIC insured amount | CAD										CAD 100,000
Allowance for doubtful accounts	2,400,000	2,400,000	2,300,000
Inventory reserve balances	33,200,000	33,200,000	19,300,000
Charge related to recall of products		4,615,000
Advertising expense		$ 79,800,000	107,700,000	114,700,000
Amortization of catalog		12 months
Capitalized catalog costs and other current assets	61,258,000	$ 61,258,000	35,836,000
Capitalized Interest		2,400,000	2,300,000	1,600,000
Capitalized interest related to amortization of Convertible Notes debt discount		$ 2,400,000	2,300,000	1,100,000
Threshold for determining whether land rent expense is to be recorded for a Capital Lease		25.00%
Impairment to goodwill		$ 0	0	0
Impairment to trademarks and domain names		$ 0	0	0
Number of asset groups | AssetGroup		2
Impairment charge on long-lived assets		$ 17,137,000	0	0
Deferred rent and lease incentives	60,439,000	$ 60,439,000	53,986,000
Revenue recognized on membership period		1 year
Customer deposits		50.00%
Revenue recognition, gift cards, breakage		$ 3,000,000	2,000,000	3,100,000
Liabilities related to health care coverage	2,800,000	2,800,000	2,100,000
Liabilities related to workers' compensation	3,100,000	3,100,000	3,000,000
Reclassification of non current assets			2,100,000
Deferred Profit Sharing [Member]
Summary Of Accounting Policies [Line Items]
Deferred rent and lease incentives							$ 9,200,000
RHCA Integration Into RH Platform [Member]
Summary Of Accounting Policies [Line Items]
Liability for lease losses	3,200,000	$ 3,200,000
Inventory impairment	2,700,000
Other associated costs	300,000
Restructuring related costs impact to cost of goods sold	1,100,000
Restructuring related costs impact to selling, general and administrative expenses	10,600,000
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
Other Current Liabilities [Member]
Summary Of Accounting Policies [Line Items]
Product recall accrual	4,300,000	$ 4,300,000
Other Non-Current Obligations [Member] | RHCA Integration Into RH Platform [Member]
Summary Of Accounting Policies [Line Items]
Liability for lease losses	3,200,000	3,200,000
Net Revenues [Member]
Summary Of Accounting Policies [Line Items]
Charge related to recall of products		3,500,000
Cost of Goods Sold [Member]
Summary Of Accounting Policies [Line Items]
Charge related to recall of products		500,000
Selling, General and Administrative Expenses [Member]
Summary Of Accounting Policies [Line Items]
Charge related to recall of products		$ 600,000
Impairment charge, reclassified	$ 4,800,000
Adjustment [Member]
Summary Of Accounting Policies [Line Items]
Cash and cash equivalents			(18,430,000)	$ (3,248,000)	(8,291,000)	(514,000)		(2,488,000)	$ (18,430,000)
Accounts payable and accrued expenses			$ (18,430,000)		$ (8,291,000)	$ (514,000)		$ (2,488,000)