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Summary of Restricted Stock Unit Activity (Parenthetical) (Detail)	6 Months Ended
	Aug. 02, 2020 shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted stock units grant date to be determined	267,000
Restricted Stock Units (RSUs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Incremental shares released due to achievement of performance conditions	999,778	[1]
Restricted Stock Units (RSUs) [Member] | Achievement [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Incremental shares released due to achievement of performance conditions	170,308
[1] Excludes 170,308 incremental shares released due to achievement of performance conditions above target.

X

- Definition

The number of equity-based payment instruments, excluding stock (or unit) options, that vested during the reporting period.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(2)(iii)(2)
-URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901

+ Details

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X

- Definition

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.

+ References

No definition available.

+ Details

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X

- Definition

Restricted stock units for which the accounting grant date has not yet been determined and consequently for which no expense has been recognized.

+ References

No definition available.

+ Details

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- Details

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- Details

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