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Financial Information About Segments - Additional Information (Details) - segment
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Concentration Risk [Line Items]    
Number of operating segments 2  
Revenues | Geographic Concentration Risk | Outside of the United States    
Concentration Risk [Line Items]    
Percentage of total revenues by customer 32.00% 24.00%
Revenues | Geographic Concentration Risk | China    
Concentration Risk [Line Items]    
Percentage of total revenues by customer 11.00%