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Basis of Presentation - Additional Information (Detail) $ in Thousands	3 Months Ended		6 Months Ended		12 Months Ended
	Jul. 29, 2017 USD ($)	Jul. 30, 2016 USD ($)	Jul. 29, 2017 USD ($) Location	Jul. 30, 2016 USD ($)	Jan. 28, 2017
Basis Of Presentation And Summary Of Significant Accounting Policies [Line Items]
Weeks in the fiscal year			371 days		364 days
Provision for income taxes	$ 338,743	$ 352,408	$ 634,972	$ 669,031
Adjustments for New Accounting Pronouncement
Basis Of Presentation And Summary Of Significant Accounting Policies [Line Items]
Provision for income taxes	$ (3,300)		$ (27,900)
Minimum
Basis Of Presentation And Summary Of Significant Accounting Policies [Line Items]
Number of lease locations | Location			3,900
Minimum | Key revenue streams concentration risk | Point of sale at the registers | Sales revenue net
Basis Of Presentation And Summary Of Significant Accounting Policies [Line Items]
Concentration risk, percentage			95.00%

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For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

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Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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