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Organization and Significant Accounting Policies - Research and Development (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Apr. 30, 2024 | Apr. 30, 2023 | Apr. 30, 2022
Stock-Based Compensation |  |  |
Performance period | 3 years |  |
Research and Development |  |  |
Revenue from customer funded research and development | $ 82,104 | $ 97,880 | $ 84,247
Cost of sales | $ 62,181 | 70,711 | 59,054
Lease Accounting |  |  |
Option to extend | true |  |
Option to terminate | true |  |
Option to terminate period (in years) | 3 years |  |
Advertising Costs |  |  |
Advertising expenses | $ 457 | 494 | 451
Foreign currency transactions |  |  |
Foreign currency losses | 22 | 119 | 242
Numerator for basic earnings per share: |  |  |
Net (loss) income attributable to AeroVironment, Inc. | $ 59,666 | $ (176,212) | $ (4,188)
Denominator for basic earnings (loss) per share: |  |  |
Weighted average common shares | 27,203,417 | 25,044,881 | 24,685,534
Dilutive effect of employee stock options, restricted stock and restricted stock units | 124,576 |  |
Denominator for diluted earnings (loss) per share | 27,327,993 | 25,044,881 | 24,685,534
Number of anti-dilutive shares | 1,000 | 146,000 | 224,000
Number of anti-dilutive due to loss | 0 | 0 |
Prepaid expenses and other current assets |  |  |
Cost to Fulfill a Contract with a Customer |  |  |
Costs to fulfill future performance obligations |  | $ 0 |
Minimum |  |  |
Lease Accounting |  |  |
Remaining lease terms (in years) | 1 year |  |
Maximum |  |  |
Lease Accounting |  |  |
Remaining lease terms (in years) | 7 years |  |
Option to extend period (in years) | 9 years |  |

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