Annual report pursuant to Section 13 and 15(d)

Intangible Assets - Summary of Acquired Intangible Assets (Details)

v3.19.3.a.u2
Intangible Assets - Summary of Acquired Intangible Assets (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Finite-Lived Intangible Assets    
Weighted Average Life 12 years  
Gross Carrying Amount $ 215,315 $ 197,800
Accumulated Amortization $ 88,022 64,417
Held for Sale | Test Systems    
Finite-Lived Intangible Assets    
Intangible Assets, Net of Accumulated Amortization   651
Patents    
Finite-Lived Intangible Assets    
Weighted Average Life 11 years  
Gross Carrying Amount $ 2,146 2,146
Accumulated Amortization $ 1,804 1,716
Non-compete Agreement    
Finite-Lived Intangible Assets    
Weighted Average Life 4 years  
Gross Carrying Amount $ 11,318 10,900
Accumulated Amortization $ 7,696 4,680
Trade Names    
Finite-Lived Intangible Assets    
Weighted Average Life 10 years  
Gross Carrying Amount $ 11,438 11,454
Accumulated Amortization $ 6,550 5,182
Completed and Unpatented Technology    
Finite-Lived Intangible Assets    
Weighted Average Life 9 years  
Gross Carrying Amount $ 48,201 36,406
Accumulated Amortization $ 21,196 14,964
Customer Relationships    
Finite-Lived Intangible Assets    
Weighted Average Life 15 years  
Gross Carrying Amount $ 142,212 136,894
Accumulated Amortization $ 50,776 $ 37,875