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Summary of Restricted Stock Unit Activity (Detail) - Restricted Stock Units (RSUs)	9 Months Ended
	Nov. 01, 2020 shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Balance at February 2, 2020	2,884,194
Granted	1,132,649
Granted, with vesting subject to performance conditions	267,000
Released	(1,030,199)	[1]
Cancelled	(98,603)
Balance at November 1, 2020	3,155,041
Vested plus expected to vest at November 1, 2020	2,340,530
[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 were forfeited 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)(1)(iv)(3)
-URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901

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X

- Definition

The number of grants made 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).

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
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-Paragraph 2
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-URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901

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X

- Definition

The number of non-vested equity-based payment instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(2)(i)-(ii)
-URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901

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- Definition

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

+ References

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-Name Accounting Standards Codification
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-SubTopic 10
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- 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.

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Share based compensation by share based payment arrangement equity instruments other than options granted with vesting subject to performance conditions.

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- Definition

As of the balance sheet date, the number of shares of outstanding non-option equity instruments, vested and expected to vest.

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