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Commitments - Additional Information (Details) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Nov. 30, 2017 USD ($) air-craft | Nov. 30, 2017 USD ($) air-craft
Other Aircraft Commitments Disclosure [Abstract] |  |
Boeing 767F Conditional Aircraft Commitments |  | 4
Boeing 777F Conditional Aircraft Commitments |  | 6
Deposit and Progress Payments | $ | $ 684 | $ 684
Cessna SkyCourier 408 [Member] |  |
Other Aircraft Commitments Disclosure [Abstract] |  |
Number of aircraft agreed to purchase | 50 | 50
Additional maximum number of aircraft, options to purchase | 50 | 50
Aircraft expected to be delivered, earliest fiscal year | 2021 |
Aircraft expected to be delivered, latest fiscal year | 2024 |
ATR 72-600F [Member] |  |
Other Aircraft Commitments Disclosure [Abstract] |  |
Number of aircraft agreed to purchase | 30 | 30
Additional maximum number of aircraft, options to purchase | 20 | 20
Aircraft expected to be delivered, earliest fiscal year | 2021 |
Aircraft expected to be delivered, latest fiscal year | 2026 |

X
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- Definition Aircraft expected to be delivered earliest fiscal year. + References No definition available. + Details
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- Definition Aircraft expected to be delivered latest fiscal year. + References No definition available. + Details
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- Definition The number of Boeing 767F aircraft committed to be purchased which are conditional on certain events. + References No definition available. + Details
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- Definition The number of Boeing 777F aircraft committed to be purchased which are conditional on certain events. + References No definition available. + Details
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- Definition Number of aircraft agreed to purchase. + References No definition available. + Details
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- Definition Other aircraft commitments disclosure. + References No definition available. + Details
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- Details
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- Details
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