Annual report pursuant to Section 13 and 15(d)

Goodwill and Intangible Assets (Details)

v3.3.1.900
Goodwill and Intangible Assets (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Goodwill [Roll Forward]      
Balance $ 92,052 $ 92,052  
Increase from the acquisitions 106,493    
Balance 198,545 92,052 $ 92,052
Finite-Lived Intangible Assets [Line Items]      
Contract-related 173,084 93,304  
Acquired technologies 12,400 12,400  
Trade names 16,730 10,100  
Intangible assets, Total 202,214 115,804  
Accumulated Amortization (58,146) (42,570)  
Accumulated Impairment Loss (1,025) (1,025)  
Net Intangible Assets 143,043 72,209  
Amortization of Intangible Assets 15,600 10,000 10,200
Finite-Lived Intangible Assets, Net [Abstract]      
2016 16,130    
2017 16,080    
2018 16,080    
2019 16,016    
2020 15,425    
Thereafter 63,312    
Total 143,043 72,209  
Supply Chain Management Group [Member]      
Goodwill [Roll Forward]      
Balance 61,169 61,169  
Increase from the acquisitions 1,944    
Balance 63,113 61,169 61,169
IT, Energy and Management Consulting Group [Member]      
Goodwill [Roll Forward]      
Balance 30,883 30,883  
Increase from the acquisitions 0    
Balance 30,883 30,883 30,883
Aviation Group [Member]      
Goodwill [Roll Forward]      
Balance 0 0  
Increase from the acquisitions 104,549    
Balance 104,549 0 $ 0
Contract and Customer-Related [Member]      
Finite-Lived Intangible Assets [Line Items]      
Accumulated Amortization (46,611) (33,840)  
Accumulated Impairment Loss (1,025) (1,025)  
Net Intangible Assets 125,448 58,439  
Finite-Lived Intangible Assets, Net [Abstract]      
Total 125,448 58,439  
Acquired Technologies [Member]      
Finite-Lived Intangible Assets [Line Items]      
Accumulated Amortization (5,151) (4,024)  
Accumulated Impairment Loss 0 0  
Net Intangible Assets 7,249 8,376  
Finite-Lived Intangible Assets, Net [Abstract]      
Total 7,249 8,376  
Trade Names - Amortizable [Member]      
Finite-Lived Intangible Assets [Line Items]      
Accumulated Amortization (6,384) (4,706)  
Accumulated Impairment Loss 0 0  
Net Intangible Assets 10,346 5,394  
Finite-Lived Intangible Assets, Net [Abstract]      
Total $ 10,346 $ 5,394