Segment Reporting - Summary of Metrics Reviewed by CODM to Evaluate Performance Internally (Detail) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Jan. 28, 2017	Oct. 29, 2016	Jul. 30, 2016	Apr. 30, 2016	Jan. 30, 2016	Oct. 31, 2015	Aug. 01, 2015	May 02, 2015	Jan. 28, 2017	Jan. 30, 2016	Jan. 31, 2015
Segment Reporting Information [Line Items]
Net revenues	$ 586,706	$ 549,328	$ 543,381	$ 455,456	$ 647,208	$ 532,411	$ 506,942	$ 422,445	$ 2,134,871	$ 2,109,006	$ 1,867,422
Gross profit	196,654	175,819	179,839	127,475	224,261	$ 190,750	$ 194,263	$ 143,418	679,787	752,692	690,774
Depreciation and amortization									56,995	44,595	$ 34,463
Goodwill	173,603				124,301				173,603	124,301
Trademarks and domain names	100,624				48,309				100,624	48,309
Total assets	2,192,520	$ 2,148,010	$ 2,088,127	$ 2,048,520	$ 2,067,944				2,192,520	$ 2,067,944
RH Segment [Member]
Segment Reporting Information [Line Items]
Net revenues									2,060,044
Gross profit									656,191
Depreciation and amortization									54,480
Goodwill	124,374								124,374
Trademarks and domain names	48,524								48,524
Total assets	2,040,346								2,040,346
Waterworks [Member]
Segment Reporting Information [Line Items]
Net revenues									74,827
Gross profit									23,596
Depreciation and amortization									2,515
Goodwill	49,229								49,229
Trademarks and domain names	52,100								52,100
Total assets	$ 152,174								$ 152,174