Annual and transition report of foreign private issuers pursuant to Section 13 or 15(d)

Flight Equipment Held For Sale (Details)

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Flight Equipment Held For Sale (Details) - item
3 Months Ended
Mar. 31, 2016
Dec. 31, 2016
Dec. 31, 2015
Number of aircraft held for sale   6 5
Number of engines held for sale   4  
Number of aircraft sold 5