Quarterly report pursuant to Section 13 or 15(d)

Entity Level Information - Percentage of Total Revenues (Details)

v3.20.1
Entity Level Information - Percentage of Total Revenues (Details) - Revenues - Customer Concentration
3 Months Ended
Mar. 31, 2020
Mar. 31, 2019
Customer A    
Revenues From External Customers And Long Lived Assets [Line Items]    
Concentration risk percentage 25.00%  
Customer B    
Revenues From External Customers And Long Lived Assets [Line Items]    
Concentration risk percentage 17.00%  
Customer C    
Revenues From External Customers And Long Lived Assets [Line Items]    
Concentration risk percentage 17.00% 13.00%
Customer D    
Revenues From External Customers And Long Lived Assets [Line Items]    
Concentration risk percentage 12.00%  
Customer E    
Revenues From External Customers And Long Lived Assets [Line Items]    
Concentration risk percentage   37.00%
Customer F    
Revenues From External Customers And Long Lived Assets [Line Items]    
Concentration risk percentage   14.00%