Amount of noncash expense for share-based payment arrangement.

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Estimated period over which an employee is required to provide service in exchange for the equity-based payment award, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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No definition available.

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Number of shares authorized for issuance under share-based payment arrangement.

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The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable.

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Exercise price as a percentage of closing price on the day prior to the grant date.

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No definition available.

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Maximum term of grants of option awards.

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- Definition

The highest quantity of shares that a recipient can be granted under the plan on an annual basis.

+ References

No definition available.

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Stock-Based Compensation - Additional Information (Detail) - USD ($)	3 Months Ended		6 Months Ended
	Aug. 04, 2019	Jul. 29, 2018	Aug. 04, 2019	Jul. 29, 2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Maximum term of grants of option awards, years			7 years
Vesting period of awards granted to employees, years			4 years
Stock-based compensation expense			$ 35,401,000	$ 26,526,000
Selling, General and Administrative Expenses
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense	$ 16,872,000	$ 13,637,000	$ 35,401,000	$ 26,526,000
Minimum \| Non-Employee
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period of awards granted to employees, years			1 year
Equity Award Programs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Aggregate number of shares under the Plan	36,570,000		36,570,000
Shares available for future grant	5,345,000		5,345,000
Option Awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Awards annual grant limit			1,000,000
Option Awards \| Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Exercise price as a percentage of closing price on the day prior to the grant date			100.00%
Service Based Option Awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period of awards granted to employees, years			4 years
Stock Awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Awards annual grant limit			1,000,000
Performance Based Stock Awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period of awards granted to employees, years			3 years