The aggregate amount of noncash, equity-based employee remuneration. This may include the value of stock or unit options, amortization of restricted stock or units, and adjustment for officers' compensation. As noncash, this element is an add back when calculating net cash generated by operating activities using the indirect method.

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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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The maximum number of shares (or other type of equity) originally approved (usually by shareholders and board of directors), net of any subsequent amendments and adjustments, for awards under the equity-based compensation plan. As stock or unit options and equity instruments other than options are awarded to participants, the shares or units remain authorized and become reserved for issuance under outstanding awards (not necessarily vested).

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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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Period from grant date that an equity-based award expires, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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

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Maximum term of grants of option awards.

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

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Stock-Based Compensation - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Oct. 28, 2018	Oct. 29, 2017	Oct. 28, 2018	Oct. 29, 2017
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Maximum term of grants of option awards, years			7 years
Stock-based compensation expense	$ 14,427	$ 7,335	$ 40,953	$ 30,164
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	7,465,000		7,465,000
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
Maximum term of grants of stock awards, years			7 years
Service Based Stock Awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period of awards granted to employees, years			4 years
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