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General and Summary of Significant Accounting Policies Intangible Assets #1 (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Finite-Lived Intangible Assets [Line Items]    
Cost $ 173,372 $ 167,044
Accumulated Amortization 48,186 31,516
Finite-Lived Intangible Assets, Net 125,186 135,528
Intangible Assets, Gross (Excluding Goodwill) 181,607 175,269
INTANGIBLE ASSETS, net $ 133,421 $ 143,753
Patents [Member]    
Finite-Lived Intangible Assets [Line Items]    
Weighted-Average Amortization Life in Years 10 years 10 years
Cost $ 19,399 $ 17,064
Accumulated Amortization 12,147 10,970
Finite-Lived Intangible Assets, Net $ 7,252 $ 6,094
Customer Contracts [Member]    
Finite-Lived Intangible Assets [Line Items]    
Weighted-Average Amortization Life in Years 9 years 9 years
Cost $ 5,319 $ 5,319
Accumulated Amortization 5,272 4,892
Finite-Lived Intangible Assets, Net $ 47 $ 427
Customer-Related Intangible Assets [Member]    
Finite-Lived Intangible Assets [Line Items]    
Weighted-Average Amortization Life in Years 9 years 9 years
Cost $ 57,916 $ 55,080
Accumulated Amortization 13,363 6,562
Finite-Lived Intangible Assets, Net $ 44,553 $ 48,518
Trademarks [Member]    
Finite-Lived Intangible Assets [Line Items]    
Weighted-Average Amortization Life in Years 4 years 4 years
Cost $ 425 $ 425
Accumulated Amortization 425 425
Finite-Lived Intangible Assets, Net $ 0 $ 0
Trade Names [Member]    
Finite-Lived Intangible Assets [Line Items]    
Weighted-Average Amortization Life in Years 15 years 15 years
Cost $ 7,456 $ 7,310
Accumulated Amortization 1,618 1,096
Finite-Lived Intangible Assets, Net $ 5,838 $ 6,214
Developed Technology Rights [Member]    
Finite-Lived Intangible Assets [Line Items]    
Weighted-Average Amortization Life in Years 11 years 11 years
Cost $ 82,857 $ 81,846
Accumulated Amortization 15,361 7,571
Finite-Lived Intangible Assets, Net 67,496 74,275
In Process Research and Development [Member]    
Finite-Lived Intangible Assets [Line Items]    
Cost $ 8,235 $ 8,225