Annual report pursuant to Section 13 and 15(d)

Goodwill and Intangible Assets (Intangibles) (Details)

v3.3.1.900
Goodwill and Intangible Assets (Intangibles) (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Components of intangible assets      
Gross Carrying Amount $ 339,028 $ 87,371  
Accumulated Amortization (46,353) (28,717)  
Net Carrying Amount 292,675 58,654  
Amortization expense 17,636 10,642 $ 8,452
Customer lists      
Components of intangible assets      
Gross Carrying Amount 257,410 68,603  
Accumulated Amortization (33,668) (21,699)  
Net Carrying Amount $ 223,742 46,904  
Customer lists | Minimum      
Components of intangible assets      
Useful Life 4 years    
Customer lists | Maximum      
Components of intangible assets      
Useful Life 12 years    
Backlog      
Components of intangible assets      
Gross Carrying Amount $ 11,000    
Accumulated Amortization (703)    
Net Carrying Amount $ 10,297    
Backlog | Maximum      
Components of intangible assets      
Useful Life 4 years    
Proprietary technology      
Components of intangible assets      
Gross Carrying Amount $ 53,928 15,678  
Accumulated Amortization (9,833) (5,808)  
Net Carrying Amount $ 44,095 9,870  
Proprietary technology | Minimum      
Components of intangible assets      
Useful Life 2 years 6 months    
Proprietary technology | Maximum      
Components of intangible assets      
Useful Life 8 years    
Trade names      
Components of intangible assets      
Gross Carrying Amount $ 16,690 3,090  
Accumulated Amortization (2,149) (1,210)  
Net Carrying Amount $ 14,541 $ 1,880  
Trade names | Minimum      
Components of intangible assets      
Useful Life 2 years    
Trade names | Maximum      
Components of intangible assets      
Useful Life 6 years