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Summary of Significant Accounting Policies (Intangible Assets) (Details) - Maximum [Member]
12 Months Ended
Dec. 31, 2019
Customer Relationships [Member]  
Acquired Finite-Lived Intangible Assets [Line Items]  
Useful Life 12 years
Patents and Others [Member]  
Acquired Finite-Lived Intangible Assets [Line Items]  
Useful Life 20 years