Reportable Segments - Schedule of Assets by Reportable Segment (Details) - USD ($)
$ in Thousands
Dec. 31, 2015
Dec. 31, 2014
Segment Reporting Information [Line Items]    
Total assets $ 601,653 $ 693,220
Aircraft held for sale 12,348 0
Fixed assets 344,026 386,450
Effect of early adoption    
Segment Reporting Information [Line Items]    
Current deferred tax liabilities   (900)
Effect of early adoption | Other noncurrent assets    
Segment Reporting Information [Line Items]    
Debt issuance costs   (11,400)
Operating Segments | Commercial Aviation Services    
Segment Reporting Information [Line Items]    
Total assets 41,857 56,456
Operating Segments | Global Defense and Security    
Segment Reporting Information [Line Items]    
Total assets 173,882 232,775
Operating Segments | Manufacturing & MRO    
Segment Reporting Information [Line Items]    
Total assets 25,623 16,207
Corporate    
Segment Reporting Information [Line Items]    
Total assets $ 3,917 $ 1,332