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Summary of Restricted Stock Unit Activity (Detail) - USD ($) | 12 Months Ended
--- | ---
Jan. 31, 2021 | Feb. 02, 2020 | Feb. 03, 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Released, shares |  | (170,308) |  |
Granted, weighted average grant date fair value |  | $ 59.51 | $ 58.18 | $ 49.57
Restricted Stock Units (RSUs) |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Balance at February 2, 2020 |  | 2,884,194 |  |
Granted, shares |  | 1,145,610 |  |
Granted, with vesting subject to performance conditions, shares |  | 267,000 |  |
Released, shares | [1] | (1,061,159) |  |
Cancelled, shares |  | (116,761) |  |
Balance at January 31, 2021 |  | 3,118,884 | 2,884,194 |
Vested plus expected to vest at January 31, 2021 |  | 2,773,871 |  |
Balance at February 2, 2020, weighted average grant date fair value |  | $ 54.09 |  |
Granted, weighted average grant date fair value |  | 51.67 |  |
Granted, with vesting subject to performance conditions, weighted average grant date fair value |  | 93.17 |  |
Released, weighted average grant date fair value | [1] | 53.96 |  |
Cancelled, weighted average grant date fair value |  | 53.08 |  |
Balance at January 31, 2021, weighted average grant date fair value |  | 56.62 | $ 54.09 |
Vested plus expected to vest at February 2, 2020, weighted average grant date fair value |  | $ 56.61 |  |
Weighted average contractual term remaining (years) |  | 3 years 18 days |  |
Vested plus expected to vest at January 31, 2021, weighted average contractual term remaining (years) |  | 3 years 5 months 1 day |  |
Balance at January 31, 2021,Intrinsic Value |  | $ 402,087,000 |  |
Vested plus expected to vest at January 31, 2021,Intrinsic Value |  | $ 357,607,000 |  |
[1] | Excludes 170,308 incremental shares released due to achievement of performance conditions above target.

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- 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 + Details
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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. + 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)(3) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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- 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 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)(1) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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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). + 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)(1) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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- Definition Per share or unit weighted-average fair value of nonvested award under share-based payment arrangement. Excludes share and unit options. + 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)(i)-(ii) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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- Definition Weighted average remaining contractual term for equity-based awards excluding options, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + 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 (e)(1) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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- 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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- 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. + 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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