Goodwill and Other Intangibles (Schedule Intangible Assets) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Jul. 31, 2011
Finite and Indefinite-lived Intangible Assets by Major Class [Line Items]
Number of business units reporting goodwill (in reporting units)	2
Finite and Indefinite-lived Intangible Assets [Roll Forward]
Carrying value at beginning of period	$ 5,146
Impairment	0	0	(2,282)
Carrying value at end of period	4,896	5,146
ACMI Services [Member]
Finite and Indefinite-lived Intangible Assets [Roll Forward]
Carrying value at beginning of period	5,146	6,396
Amortization expense	(250)	(1,250)
Impairment	0	0	(2,282)
Carrying value at end of period	4,896	5,146	6,396
ACMI Services [Member] | Customer Relationships [Member]
Finite and Indefinite-lived Intangible Assets [Roll Forward]
Carrying value at beginning of period	2,146	2,396		2,500
Amortization expense	(250)	(250)	(600)
Carrying value at end of period	1,896	2,146	2,396	2,500
Intangibles useful life	7 years
ACMI Services [Member] | Airline Certificates [Member]
Finite and Indefinite-lived Intangible Assets [Roll Forward]
Carrying value at beginning of period	3,000	4,000
Amortization expense	0	(1,000)
Carrying value at end of period	$ 3,000	$ 3,000