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v3.25.2

Government Subsidies (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
May 31, 2025 | May 31, 2024 | May 31, 2023
Cost of sales |  |  |
Amount of contra-expense | $ 1.9 | $ 1.5 | $ 2.4
Selling, general and administrative expenses |  |  |
Amount of contra-expense | $ 0.6 | $ 0.2 | $ 0.3

X
- Definition The amount of contra expense recorded for government grant. + References No definition available. + Details
Name: | air_GovernmentGrantContraExpense
Namespace Prefix: | air_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Details
Name: | us-gaap_IncomeStatementLocationAxis=us-gaap_CostOfSalesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_IncomeStatementLocationAxis=us-gaap_SellingGeneralAndAdministrativeExpensesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |