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Goodwill and Intangible Assets - Intangible Assets - Finite Life (Detail) - USD ($)
$ in Thousands
Dec. 31, 2015
Dec. 31, 2014
Finite-Lived Intangible Assets [Line Items]    
Cost $ 100,022 $ 71,564
Accumulated Amortization 25,065 13,166
Patents [Member]    
Finite-Lived Intangible Assets [Line Items]    
Cost 1,456 1,429
Accumulated Amortization 1,456 1,427
Employment Agreements [Member]    
Finite-Lived Intangible Assets [Line Items]    
Cost 733 733
Accumulated Amortization 677 461
Technology [Member]    
Finite-Lived Intangible Assets [Line Items]    
Cost 15,867 8,677
Accumulated Amortization 4,027 2,412
Customer Lists [Member]    
Finite-Lived Intangible Assets [Line Items]    
Cost 77,497 59,017
Accumulated Amortization 17,756 9,094
Non-compete Agreements [Member]    
Finite-Lived Intangible Assets [Line Items]    
Cost 1,118 1,118
Accumulated Amortization 257 34
Tradename [Member]    
Finite-Lived Intangible Assets [Line Items]    
Cost 1,390 1,390
Accumulated Amortization 162 23
Backlog [Member]    
Finite-Lived Intangible Assets [Line Items]    
Cost 4,270  
Accumulated Amortization 1,423  
Foreign Currency Adjustments [Member]    
Finite-Lived Intangible Assets [Line Items]    
Cost (2,309) (800)
Accumulated Amortization $ (693) $ (285)