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

Debt (ALS II Narrative) (Details)

v3.6.0.2
Debt (ALS II Narrative) (Details) - ALS II Debt [Member]
$ in Millions
12 Months Ended
Dec. 31, 2016
USD ($)
item
Debt Instrument [Line Items]  
Number of aircraft designated as collateral | item 26
Debt Instrument, Collateral Amount | $ $ 745.3