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Segment Reporting - Summary of Statements of Income Metrics Reviewed by CODM to Evaluate Performance Internally or As required under ASC 280 - Segment Reporting (Detail) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Feb. 02, 2019	Nov. 03, 2018	Aug. 04, 2018	May 05, 2018	Feb. 03, 2018	Oct. 28, 2017	Jul. 29, 2017	Apr. 29, 2017	Feb. 02, 2019	Feb. 03, 2018	Jan. 28, 2017
Segment Reporting Information [Line Items]
Net revenues	$ 670,891	$ 636,558	$ 640,798	$ 557,406	$ 670,295	$ 592,473	$ 615,326	$ 562,080	$ 2,505,653	$ 2,440,174	$ 2,134,871
Gross profit	$ 262,701	$ 254,511	$ 271,600	$ 212,035	$ 258,673	$ 214,325	$ 205,813	$ 170,256	1,000,847	849,067	679,787
Depreciation and amortization									74,346	70,135	56,995
RH Segment [Member]
Segment Reporting Information [Line Items]
Net revenues									2,375,472	2,319,332	2,060,044
Gross profit									949,307	801,999	656,191
Depreciation and amortization									69,608	65,666	54,480
Waterworks [Member]
Segment Reporting Information [Line Items]
Net revenues									130,181	120,842	74,827
Gross profit									51,540	47,068	23,596
Depreciation and amortization									$ 4,738	$ 4,469	$ 2,515