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Segment and Customer Concentration Information - Narrative (Details) - Revenue from contract with customer benchmark - Customer Concentration Risk
3 Months Ended 9 Months Ended
Sep. 30, 2021
Sep. 30, 2020
Sep. 30, 2021
Sep. 30, 2020
Customer One        
Concentration Risk [Line Items]        
Percentage of revenue (as percent) 63.00% 52.00% 38.00%  
Customer Two        
Concentration Risk [Line Items]        
Percentage of revenue (as percent)   17.00% 31.00%  
Customer Three        
Concentration Risk [Line Items]        
Percentage of revenue (as percent) 24.00%   11.00%  
Largest Customer        
Concentration Risk [Line Items]        
Percentage of revenue (as percent)       64.00%