Segment Reporting - Schedule of Segment Operating Income (Loss) and Income (Loss) Before Tax (Detail) - USD ($) $ in Thousands	3 Months Ended
	May 05, 2018	Apr. 29, 2017
Segment Reporting Information [Line Items]
Operating income (loss)	$ 53,601	$ 6,896
Distribution center closures	2,072
Recall accrual	254
Post-acquisition related legal costs	(1,915)
Impact of inventory step-up	(190)	(1,380)
Interest expense—net	17,035	12,179
Income (loss) before income taxes	36,566	(5,283)
Operating Segments [Member] | RH Segment [Member]
Segment Reporting Information [Line Items]
Operating income (loss)	53,896	10,058
Operating Segments [Member] | Waterworks [Member]
Segment Reporting Information [Line Items]
Operating income (loss)	$ (516)	$ (1,782)