Other Non-Current Obligations - Additional Information (Detail) - RHCA Integration Into RH Platform [Member] $ in Millions	3 Months Ended
	Nov. 03, 2018 USD ($)
Distribution Center Closures [Member]
Other Non Current Obligations [Line Items]
Liability for lease losses	$ 2.2
Employee termination benefits	0.2
Restructuring related costs impact to selling, general and administrative expenses	2.6
Capitalized Property and Equipment [Member] | Distribution Center Closures [Member]
Other Non Current Obligations [Line Items]
Restructuring related costs, including loss on disposal	0.2
RH Segment [Member]
Other Non Current Obligations [Line Items]
Liability for lease losses	$ 3.4