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Organization and Significant Accounting Policies - Contract Estimates (Details) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Jan. 30, 2021 USD ($) contract | Jan. 25, 2020 USD ($) contract | Jan. 30, 2021 USD ($) contract | Jan. 25, 2020 USD ($) contract
Material adjustment to any one contract | $ 0 | $ 0 | $ 0 | $ 0
Amount of revised aggregate impact of adjustments in contract estimates on revenue related to performance obligations satisfied or partially satisfied in previous periods |  | $ 1,152 |  | $ 1,169
Number of active contracts | contract | 1 | 1 | 1 | 1
Revision of estimate of total costs required to complete the contracts |  |  |  |
Amount of revised aggregate impact of adjustments in contract estimates on revenue related to performance obligations satisfied or partially satisfied in previous periods |  |  |  | $ 1,036

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- Definition Refers to any one adjustment that was material to the contract. + References No definition available. + Details
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Data Type: | xbrli:monetaryItemType
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- Definition Represents number of active contracts. + References No definition available. + Details
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Namespace Prefix: | avav_
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Balance Type: | na
Period Type: | instant

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- Definition Amount of revised aggregate impact of adjustments in contract estimates on revenue related to performance obligations satisfied or partially satisfied in previous periods + References No definition available. + Details
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Period Type: | duration

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- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |