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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

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Namespace Prefix:	air_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Details

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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: