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Employee Savings Plan (Details) - USD ($) $ in Thousands | 12 Months Ended
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Apr. 30, 2022 | Apr. 30, 2021 | Apr. 30, 2020
Employee Savings Plan |  |  |
Amount of expense in contribution to the plan | $ 6,842 | $ 5,764 | $ 4,744

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- Definition NA + References No definition available. + Details
Name: | avav_EmployeeSavingsPlanAbstract
Namespace Prefix: | avav_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Definition Amount of cost for defined contribution plan. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 70 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=49170846&loc=d3e28014-114942 + Details
Name: | us-gaap_DefinedContributionPlanCostRecognized
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration