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Commitments - Additional Information (Details) $ in Millions | 3 Months Ended
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Aug. 31, 2018 USD ($) air-craft
Other Aircraft Commitments Disclosure [Abstract] |
Boeing 767F Conditional Aircraft Commitments | 5
Boeing 777F Conditional Aircraft Commitments | 6
Deposit and Progress Payments | $ | $ 992
Additional B777F [Member] |
Other Aircraft Commitments Disclosure [Abstract] |
Boeing 777F Conditional Aircraft Commitments | 6
Number of aircraft agreed to purchase | 12
Aircraft expected to be delivered, earliest fiscal year | 2021
Aircraft expected to be delivered, latest fiscal year | 2025
Additional B767F [Member] |
Other Aircraft Commitments Disclosure [Abstract] |
Boeing 767F Conditional Aircraft Commitments | 1
Number of aircraft agreed to purchase | 12
Aircraft expected to be delivered, earliest fiscal year | 2020
Aircraft expected to be delivered, latest fiscal year | 2022
B777F Aircraft from 2020 to 2019 [Member] |
Other Aircraft Commitments Disclosure [Abstract] |
Aircraft expected to be delivered, earliest fiscal year | 2019
Aircraft expected to be delivered, latest fiscal year | 2020
Accelerate Delivery of Boeing 777F Conditional Aircraft Commitments | 1
B767F Aircraft from 2020 to 2019 [Member] |
Other Aircraft Commitments Disclosure [Abstract] |
Aircraft expected to be delivered, earliest fiscal year | 2019
Aircraft expected to be delivered, latest fiscal year | 2020
Accelerate delivery of Boeing 767F conditional aircraft commitments | 1
B777F [Member] |
Other Aircraft Commitments Disclosure [Abstract] |
Number of non conditional aircrafts | 3
Aircraft expected to be delivered, earliest fiscal year | 2019
Aircraft expected to be delivered, latest fiscal year | 2025
Number of aircrafts scheduled for delivery | 23
Number of aircrafts delivered | 1
Additional maximum number of aircraft, options to purchase | 14
Number of aircrafts rescheduled delivery | 11
Number of aircraft total options to purchase | 25
Aircraft expected to be delivered, through fiscal year | 2028
B767F [Member] |
Other Aircraft Commitments Disclosure [Abstract] |
Aircraft expected to be delivered, earliest fiscal year | 2019
Aircraft expected to be delivered, latest fiscal year | 2023
Number of aircrafts scheduled for delivery | 64
Number of aircrafts delivered | 5
Additional maximum number of aircraft, options to purchase | 6
Number of aircraft total options to purchase | 50
Aircraft expected to be delivered, through fiscal year | 2026

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- Details
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