Stock Incentive Plans - Schedule of Company's Stock Award Activity (Detail) shares in Thousands	6 Months Ended
Aug. 04, 2018 $ / shares shares
Stocks Options [Member]
Stock Option Activity Under The Company's Incentive Plans [Line Items]
Outstanding, beginning balance	$ 4.00
Granted	16.35
Exercised/vested	2.08
Forfeited/canceled	6.07
Outstanding, ending balance	$ 8.74
Outstanding, beginning balance \| shares	8,981
Granted \| shares	2,766
Exercised/vested \| shares	(3,093)
Forfeited/canceled \| shares	(371)
Outstanding, ending balance \| shares	8,283
Restricted Stock [Member]
Stock Option Activity Under The Company's Incentive Plans [Line Items]
Granted	$ 22.00
Exercised/vested	22.00
Forfeited/canceled	0
Outstanding, ending balance	$ 22.00
Granted \| shares	2,943
Exercised/vested \| shares	(1,954)
Outstanding, ending balance \| shares	989

Stock Option Activity Under The Company's Incentive Plans [Line Items]

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- Definition

Weighted average fair value as of the grant date of equity-based award plans other than stock (unit) option plans that were not exercised or put into effect as a result of the occurrence of a terminating event.

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- Definition

The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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The weighted average fair value of nonvested awards on equity-based plans excluding option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, revenue or profit achievement stock award plan) for which the employer is contingently obligated to issue equity instruments or transfer assets to an employee who has not yet satisfied service or performance criteria necessary to gain title to proceeds from the sale of the award or underlying shares or units.

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- Definition

The weighted average fair value as of grant date pertaining to an equity-based award plan other than a stock (or unit) option plan for which the grantee gained the right during the reporting period, by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash in accordance with the terms of the arrangement.

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- Definition

The number of shares under options that were cancelled during the reporting period as a result of occurrence of a terminating event specified in contractual agreements pertaining to the stock option plan.

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Gross number of share options (or share units) granted during the period.

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Number of options outstanding, including both vested and non-vested options.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition

Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan.

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Weighted average price at which option holders acquired shares when converting their stock options into shares.

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Weighted average price at which grantees could have acquired the underlying shares with respect to stock options that were terminated.

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Weighted average per share amount at which grantees can acquire shares of common stock by exercise of options.

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Number of share options (or share units) exercised during the current period.

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