Segment Reporting - Summary of Statements of Operations Metrics Reviewed by CODM to Evaluate Performance Internally (Detail) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Jul. 29, 2017	Jul. 30, 2016	Jul. 29, 2017	Jul. 30, 2016
Segment Reporting Information [Line Items]
Net revenues	$ 615,326	$ 543,381	$ 1,177,406	$ 998,837
Gross profit	205,813	179,839	376,069	307,314
Depreciation and amortization	16,526	13,658	32,546	26,212
RH Segment [Member]
Segment Reporting Information [Line Items]
Net revenues	583,793	522,618	1,117,321	978,074
Gross profit	192,996	173,803	352,623	301,278
Depreciation and amortization	15,386	12,964	30,287	25,518
Waterworks [Member]
Segment Reporting Information [Line Items]
Net revenues	31,533	20,763	60,085	20,763
Gross profit	12,817	6,036	23,446	6,036
Depreciation and amortization	$ 1,140	$ 694	$ 2,259	$ 694

The current period expense charged against earnings on long-lived, physical assets not used in production, and which are not intended for resale, to allocate or recognize the cost of such assets over their useful lives; or to record the reduction in book value of an intangible asset over the benefit period of such asset; or to reflect consumption during the period of an asset that is not used in production.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 360
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3602-108585

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Aggregate revenue less cost of goods and services sold or operating expenses directly attributable to the revenue generation activity.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 225
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.1,2)
-URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688

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Total revenue from sale of goods and services rendered during the reporting period, in the normal course of business, reduced by sales returns and allowances, and sales discounts.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 225
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.1)
-URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688

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No definition available.

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