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Stock-Based Compensation - Summary of Vested Performance Based and Time Based Restricted Stock Units (Detail) - USD ($) $ / shares in Units, $ in Thousands | 12 Months Ended
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May 02, 2021 | May 03, 2020 | Apr. 28, 2019
Time-Based Restricted Stock Units [Member] |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Restricted Stock Units Vested |  | 0 | 0 | 1,200
Weighted Average Fair Value | [1] | $ 0 | $ 0 | $ 21
Price Per Share | [2] | $ 0 | $ 0 | $ 17.36
Performance-Based Restricted Stock Units [Member] | Senior Executives [Member] |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Restricted Stock Units Vested | [3] | 3,277 |  |
Weighted Average Fair Value | [1],[3] | $ 33 |  |
Price Per Share | [3],[4] | $ 9.96 |  |
Performance-Based Restricted Stock Units [Member] | Key Employees [Member] |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Restricted Stock Units Vested | [3] | 3,710 |  |
Weighted Average Fair Value | [1],[3] | $ 37 |  |
Price Per Share | [3],[4] | $ 9.96 |  |
Performance-Based Restricted Stock Units [Member] | Senior Executives and Key Employees [Member] |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Restricted Stock Units Vested | [3] |  | 11,351 | 128,632
Weighted Average Fair Value | [1],[3] |  | $ 197 | $ 3,754
Price Per Share | [3],[4] |  | $ 17.36 | $ 29.19
Performance-Based Restricted Stock Units [Member] | Non-employee [Member] |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Restricted Stock Units Vested | [5] |  | 4,961 | 10,364
Weighted Average Fair Value | [1],[5] |  | $ 86 | $ 320
Price Per Share | [4],[5] |  | $ 17.36 | $ 30.90
[1] | Dollar amounts are in thousands.
[2] | Price per share represents closing price of our common stock on the date the respective award vested.
[3] | Senior executives and key employees.
[4] | The weighted average price per share is derived from the closing prices of our common stock on the dates the respective performance-based restricted stock units vested.
[5] | Non-employee

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- Definition The fair value as of end of vesting period 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 No definition available. + 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 Fair value of share-based awards for which the grantee gained the right by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash. + 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 (d)(2) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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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. + References No definition available. + Details
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