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Goodwill and Tradenames, Trademarks and Domain Names - Goodwill and Tradenames, Trademarks and Domain Names Activity (Parenthetical) (Detail) - USD ($)	3 Months Ended		12 Months Ended		24 Months Ended
	Feb. 02, 2019	Feb. 03, 2018	Feb. 02, 2019	Feb. 03, 2018	Feb. 02, 2019	Jan. 28, 2017
Indefinite Lived Intangible Assets By Major Class [Line Items]
Goodwill	$ 124,379,000	$ 141,893,000	$ 124,379,000	$ 141,893,000	$ 124,379,000
Waterworks [Member]
Indefinite Lived Intangible Assets By Major Class [Line Items]
Goodwill impairment charge	$ 17,400,000	33,700,000	17,445,000	33,700,000	$ 51,100,000
Tradename impairment charge			$ 14,641,000	0
Goodwill		$ 17,445,000		$ 17,445,000		$ 49,229,000
Tradename						$ 52,100,000