Segment Reporting - Summary of Balance Sheet Metrics as Required Under ASC 280 - Segment Reporting (Detail) - USD ($) $ in Thousands	May 05, 2018	Feb. 03, 2018
Segment Reporting Information [Line Items]
Goodwill	$ 141,849	$ 141,893
Trademarks and domain names	100,663	100,663
Total assets	1,748,961	1,732,866
RH Segment [Member]
Segment Reporting Information [Line Items]
Goodwill	124,404	124,448
Trademarks and domain names	48,563	48,563
Total assets	1,621,817	1,608,290
Waterworks [Member]
Segment Reporting Information [Line Items]
Goodwill	17,445	17,445
Trademarks and domain names	52,100	52,100
Total assets	$ 127,144	$ 124,576