Aircraft Support Parts, net - Rollforward of Inventory Reserve (Details) - Inventory Valuation Reserve - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Movement in Inventory Reserves [Roll Forward]      
Beginning Balance $ (5,640) $ (6,000) $ (6,060)
Increase in reserves (830) (117) (585)
Amounts written off 1,264 477 645
Ending Balance $ (5,206) $ (5,640) $ (6,000)