The amount of guarantee liability derecognized.

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The amount of agreed consideration upon disposal of equity method investment.

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Net carrying amount as of the balance sheet date of certain rights acquired to exercise a certain privilege or pursue a particular business or occupation and which is deemed to have a finite economic life.

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Percentage of guarantee on outstanding debt.

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Period of time between issuance and maturity of loans receivable, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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The payment for evaluation and inspection services in relation to the divestiture of aircraft.

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The amount of cash inflow associated with collection of principal value of shareholder loan.

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The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

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This item represents the carrying amount on the entity's balance sheet of its investment in common stock of an equity method investee. This is not an indicator of the fair value of the investment, rather it is the initial cost adjusted for the entity's share of earnings and losses of the investee, adjusted for any distributions (dividends) and other than temporary impairment (OTTI) losses recognized.

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Amount of income (loss) for proportionate share of equity method investee's income (loss).

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Percentage added to reference rate used to compute variable rate on loan receivable.

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Amount of loan with variable or adjustable rate of interest.

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Other Non-current Assets - Investments in Joint Ventures (Details) - USD ($) $ in Millions	1 Months Ended	3 Months Ended	12 Months Ended
	Mar. 31, 2025	Nov. 30, 2024	May 31, 2026	May 31, 2025	May 31, 2024	Dec. 31, 2025	Aug. 31, 2024
Investments in Joint Ventures
License fees, net			$ 41.2	$ 46.0
Income (losses) from joint ventures			7.2	5.4	$ (0.2)
Investments in joint ventures			49.0	32.3
AAR sumisho aviation services
Investments in Joint Ventures
Income (losses) from joint ventures			15.4	7.4	4.9
Owned Through Joint Ventures \| Aircraft
Investments in Joint Ventures
Payment for evaluation and inspection services, divestiture of aircraft			$ 4.1	2.1	$ 1.6
Owned Through Joint Ventures \| Joint venture in India to operate an airframe maintenance facility
Investments in Joint Ventures
Ownership interest in joint ventures (as a percent)			40.00%
Owned Through Joint Ventures \| Joint venture in India
Investments in Joint Ventures
Conditional on the repayment of our loan							$ 0.1
Guarantee liability							$ 9.4
Principal value of our shareholder loan		$ 2.1
Percentage on outstanding debt			40.00%
Income (losses) from joint ventures				$ 2.1
Owned Through Joint Ventures \| AAR sumisho aviation services
Investments in Joint Ventures
Ownership interest in joint ventures (as a percent)			50.00%
Owned Through Joint Ventures \| Investment in xCelle Americas, LLC ("xCelle Americas")
Investments in Joint Ventures
Ownership interest in joint ventures (as a percent)			49.90%
Loan given with semi-annual principal payments	$ 3.3
Term of the loan (in years)	5 years
Percentage of interest	2.70%
Owned Through Joint Ventures \| Joint Venture in XCelle Asia
Investments in Joint Ventures
Ownership interest in joint ventures (as a percent)						49.90%
Investments in joint ventures						$ 7.1