Quarterly report pursuant to Section 13 or 15(d)

Intangible Assets - Summary of Acquired Intangible Assets (Details)

v3.10.0.1
Intangible Assets - Summary of Acquired Intangible Assets (Details) - USD ($)
$ in Thousands
 6 Months Ended
Jun. 30, 2018
Dec. 31, 2017
Finite-Lived Intangible Assets    
Weighted Average Life 12 years  
Gross Carrying Amount $ 214,921 $ 215,043
Accumulated Amortization $ 72,377 61,550
Patents    
Finite-Lived Intangible Assets    
Weighted Average Life 11 years  
Gross Carrying Amount $ 2,146 2,146
Accumulated Amortization $ 1,672 1,629
Non-compete Agreement    
Finite-Lived Intangible Assets    
Weighted Average Life 4 years  
Gross Carrying Amount $ 10,900 10,900
Accumulated Amortization $ 3,184 1,687
Trade Names    
Finite-Lived Intangible Assets    
Weighted Average Life 10 years  
Gross Carrying Amount $ 11,471 11,492
Accumulated Amortization $ 4,648 4,114
Completed and Unpatented Technology    
Finite-Lived Intangible Assets    
Weighted Average Life 10 years  
Gross Carrying Amount $ 38,078 38,114
Accumulated Amortization $ 13,945 11,931
Backlog    
Finite-Lived Intangible Assets    
Weighted Average Life 2 years  
Gross Carrying Amount $ 14,424 14,424
Accumulated Amortization $ 14,424 12,184
Customer Relationships    
Finite-Lived Intangible Assets    
Weighted Average Life 15 years  
Gross Carrying Amount $ 137,902 137,967
Accumulated Amortization $ 34,504 $ 30,005