Segment Reporting - Segment Operating Income (Loss) and Income (Loss) Before Income Taxes (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended		12 Months Ended
	Jul. 31, 2021	Aug. 01, 2020	Jul. 31, 2021	Aug. 01, 2020	Feb. 01, 2020
Segment Reporting Information
Non-cash compensation			$ (11,728)		$ (5,864)
Loss on sale leaseback transaction		$ (9,352)		$ (9,352)
Recall accrual		4,780	500	4,780
Asset impairments and change in useful lives		(1,339)	(7,354)	(9,810)	(7,354)
Reorganization related costs		(2,884)	(449)	(7,027)	(449)
Income from operations	$ 248,988	136,568	436,876	172,021	248,988
Interest expense-net	13,581	19,418	26,889	39,047	13,581
(Gain) loss on extinguishment of debt	3,166	(152)	3,271	(152)	3,166
Tradename impairment				20,459
Income before income taxes	$ 232,241	117,302	406,716	112,667	232,241
Operating segments | RH Segment
Segment Reporting Information
Income from operations		153,350	445,252	202,867	257,242
Operating segments | Waterworks
Segment Reporting Information
Income from operations		$ 1,573	$ 11,655	$ 123	$ 5,413