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Acquisition of Outward, Inc. - Additional Information (Detail) - USD ($)		6 Months Ended
	Dec. 01, 2017	Jul. 29, 2018	Feb. 03, 2019	Jan. 28, 2018
Business Acquisition [Line Items]
Goodwill			$ 85,382,000	$ 18,838,000
E-commerce
Business Acquisition [Line Items]
Goodwill			55,215,000
Retail
Business Acquisition [Line Items]
Goodwill			11,416,000
Outward Inc.
Business Acquisition [Line Items]
Contractual purchase price	$ 112,000,000
Purchase consideration	80,812,000
Consideration owed to former owners of an acquired business, contingent upon continued future service	$ 26,690,000
Acquisition payment period	4 years
Cash paid to settle pre-existing obligations as part of a business combination, excluded from consideration transferred	$ 4,498,000
Consideration owed to certain key employees of an acquired business, contingent upon continued future service and certain financial targets	$ 20,000,000
Goodwill			$ 66,631,000,000
Outward Inc. | 3-D Imaging Data and Intellectual Property
Business Acquisition [Line Items]
Finite lived intangible asset useful life		4 years

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