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Description of the Business, Basis of Presentation and Accounting Policy Updates - Concentration of Credit Risk (Details) - Operating and Capital Leases Billing - Credit Concentration Risk
9 Months Ended
Sep. 30, 2021
Customer One  
Concentration Risk [Line Items]  
Concentration Risk, Percentage 20.00%
Customer Two  
Concentration Risk [Line Items]  
Concentration Risk, Percentage 15.00%
Customer Three  
Concentration Risk [Line Items]  
Concentration Risk, Percentage 10.00%