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Goodwill and Intangible Assets - Changes in Carrying Amount of Goodwill for Operating Segments (Detail) - USD ($)	3 Months Ended		12 Months Ended
	Nov. 02, 2019	Feb. 03, 2018	Feb. 01, 2020	Feb. 02, 2019	Feb. 03, 2018
Goodwill [Line Items]
Goodwill, Impaired, Accumulated Impairment Loss			$ 1,975,100,000
Goodwill [Roll Forward]
Beginning balance			363,900,000	$ 1,350,500,000
Foreign currency translation adjustment				15,900,000
Ending balance		$ 1,350,500,000	0	363,900,000	$ 1,350,500,000
Goodwill impairments	$ (363,900,000)	0	(363,900,000)	(970,700,000)	0
United States Segment [Member]
Goodwill [Line Items]
Goodwill, Impaired, Accumulated Impairment Loss			1,173,000,000.0
Goodwill [Roll Forward]
Beginning balance			363,900,000	1,159,500,000
Foreign currency translation adjustment				0
Ending balance		1,159,500,000	0	363,900,000	1,159,500,000
Goodwill impairments			(363,900,000)	(795,600,000)
Canada Segment [Member]
Goodwill [Line Items]
Goodwill, Impaired, Accumulated Impairment Loss			129,100,000
Goodwill [Roll Forward]
Beginning balance			0	30,300,000
Foreign currency translation adjustment				(1,500,000)
Ending balance		30,300,000	0	0	30,300,000
Goodwill impairments			0	(28,800,000)
Australia Segment
Goodwill [Line Items]
Goodwill, Impaired, Accumulated Impairment Loss			173,500,000
Goodwill [Roll Forward]
Beginning balance			0	73,600,000
Foreign currency translation adjustment				(7,200,000)
Ending balance		73,600,000	0	0	73,600,000
Goodwill impairments			0	(66,400,000)
Europe Segment [Member]
Goodwill [Line Items]
Goodwill, Impaired, Accumulated Impairment Loss			499,500,000
Goodwill [Roll Forward]
Beginning balance			0	87,100,000
Foreign currency translation adjustment				(7,200,000)
Ending balance		$ 87,100,000	0	0	$ 87,100,000
Goodwill impairments			$ 0	$ (79,900,000)