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Business Acquisitions - Telerob (Details) |  | 3 Months Ended | 9 Months Ended |  |
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May 03, 2021 USD ($) | May 03, 2021 EUR (€) | Jan. 29, 2022 USD ($) | Jan. 28, 2023 USD ($) | Jan. 28, 2023 EUR (€) | Jan. 29, 2022 USD ($) | Apr. 30, 2022 USD ($) | May 03, 2021 EUR (€)
Business Acquisitions |  |  |  |  |  |  |  |
Number of months until escrow will be release | 30 months | 30 months |  |  |  |  |  |
Fair value of assets acquired: |  |  |  |  |  |  |  |
Goodwill |  |  |  | $ 336,555,000 |  |  | $ 334,347,000 |
Telerob. |  |  |  |  |  |  |  |
Business Acquisitions |  |  |  |  |  |  |  |
Cash consideration | $ 45,400,000 | € 37,455,000 |  |  |  |  |  |
Amount held in escrow | 3,636,000 |  |  |  |  |  |  | € 3,000,000
Amount of indebtedness paid | 9,468,000 | 7,811,000 |  |  |  |  |  |
Period to obtain target |  |  |  | 36 months | 36 months |  |  |
Fair value of assets acquired: |  |  |  |  |  |  |  |
Accounts receivable | 1,045,000 |  |  |  |  |  |  |
Unbilled receivable | 829,000 |  |  |  |  |  |  |
Inventories, net | 15,074,000 |  |  |  |  |  |  |
Prepaid and other current assets | 314,000 |  |  |  |  |  |  |
Property and equipment, net | 1,571,000 |  |  |  |  |  |  |
Operating lease assets | 1,508,000 |  |  |  |  |  |  |
Other assets | 494,000 |  |  |  |  |  |  |
Other intangible assets | 102,000 |  |  |  |  |  |  |
Goodwill | 20,800,000 |  |  |  |  |  |  |
Total assets acquired | 60,637,000 |  |  |  |  |  |  |
Fair value of liabilities assumed: |  |  |  |  |  |  |  |
Accounts payable | 1,136,000 |  |  |  |  |  |  |
Wages and related accruals | 560,000 |  |  |  |  |  |  |
Customer advances | 1,243,000 |  |  |  |  |  |  |
Current operating lease liabilities | 361,000 |  |  |  |  |  |  |
Other current liabilities | 3,310,000 |  |  |  |  |  |  |
Non-current operating lease liabilities | 1,147,000 |  |  |  |  |  |  |
Other non-current liabilities | 224,000 |  |  |  |  |  |  |
Deferred income taxes | 5,617,000 |  |  |  |  |  |  |
Total liabilities assumed | 13,598,000 |  |  |  |  |  |  |
Total identifiable net assets | 47,039,000 |  |  |  |  |  |  |
Fair value of consideration transferred: |  |  |  |  |  |  |  |
Cash consideration, net of cash acquired | 46,150,000 |  |  |  |  |  |  |
Contingent consideration | 889,000 |  |  |  |  |  |  |
Total | 47,039,000 |  |  |  |  |  |  |
Supplemental Pro Forma Information (unaudited) |  |  |  |  |  |  |  |
Revenue |  |  | $ 90,093,000 |  |  | $ 313,110,000 |  |
Net loss attributable to AeroVironment, Inc. |  |  | 1,753,000 |  |  | (6,091,000) |  |
SG&A | Telerob. |  |  |  |  |  |  |  |
Business Acquisitions |  |  |  |  |  |  |  |
Acquisition-related costs |  |  | $ 113,000 |  |  | $ 661,000 |  |
Technology | Telerob. |  |  |  |  |  |  |  |
Fair value of assets acquired: |  |  |  |  |  |  |  |
Intangible assets | 11,500,000 |  |  |  |  |  |  |
Backlog. | Telerob. |  |  |  |  |  |  |  |
Fair value of assets acquired: |  |  |  |  |  |  |  |
Intangible assets | 2,400,000 |  |  |  |  |  |  |
Customer relationships | Telerob. |  |  |  |  |  |  |  |
Fair value of assets acquired: |  |  |  |  |  |  |  |
Intangible assets | 5,000,000 |  |  |  |  |  |  |
Business Combination, Specific Revenue Targets Achieved In First Earnout Year | Telerob. |  |  |  |  |  |  |  |
Business Acquisitions |  |  |  |  |  |  |  |
Contingent consideration paid | $ 2,424,000 | € 2,000,000 |  |  |  |  |  |
Period to obtain target | 12 months | 12 months |  |  |  |  |  |
Amount of earnout that was not achieved |  |  |  | $ 2,424,000 | € 2,000,000 |  |  |
Business Combination, Specific Revenue Targets Achieved Following FirstEarnout Year | Telerob. |  |  |  |  |  |  |  |
Business Acquisitions |  |  |  |  |  |  |  |
Contingent consideration paid | $ 2,424,000 | € 2,000,000 |  |  |  |  |  |
Period to obtain target | 12 months | 12 months |  |  |  |  |  |
Business Combination, Specific Awards Or Orders From US Military Are Achieved Prior To 36 Month Post Closing Period [Member] | Telerob. |  |  |  |  |  |  |  |
Business Acquisitions |  |  |  |  |  |  |  |
Contingent consideration paid | $ 2,424,000 | € 2,000,000 |  |  |  |  |  |
Period to obtain target | 36 months | 36 months |  |  |  |  |  |

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