Goodwill and Other Intangibles (Schedule Intangible Assets) (Details) - ACMI Services [Member] - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Finite and Indefinite-lived Intangible Assets [Roll Forward]
Carrying value at beginning of period	$ 4,615	$ 4,896
Amortization expense	(281)	(281)
Carrying value at end of period	4,334	4,615	$ 4,896
Customer Relationships [Member]
Finite and Indefinite-lived Intangible Assets [Roll Forward]
Carrying value at beginning of period	1,615	1,896
Amortization expense	(281)	(281)	(300)
Carrying value at end of period	1,334	1,615	1,896
Airline Certificates [Member]
Finite and Indefinite-lived Intangible Assets [Roll Forward]
Carrying value at beginning of period	3,000	3,000
Amortization expense	0	0
Carrying value at end of period	$ 3,000	$ 3,000	$ 3,000