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Revenue Recognition (Details)
3 Months Ended 9 Months Ended
Sep. 30, 2019
Sep. 30, 2018
Sep. 30, 2019
Sep. 30, 2018
Revenue Recognition and Deferred Revenue [Abstract]        
Percentage of revenue accounted products transferred to customers 100.00% 100.00% 100.00% 100.00%