XML 51 R8.htm IDEA: XBRL DOCUMENT v2.4.1.9
Equity Investment Statement (USD $)
Dec. 31, 2014
Schedule of Equity Method Investments [Line Items]  
Equity Method Investments $ 13,800,000us-gaap_EquityMethodInvestments
Goodwill 34,395,000us-gaap_Goodwill
Investment in West Atlantic [Member]  
Schedule of Equity Method Investments [Line Items]  
Goodwill $ 5,500,000us-gaap_Goodwill
/ atsg_InvestmentinWestAtltanticAxis
= atsg_InvestmentinWestAtlanticMember