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Summary of Significant Accounting Policies - Schedule of Allowance for Credit Losses (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2021
Jun. 30, 2021
Mar. 31, 2021
Sep. 30, 2021
Sep. 30, 2020
Allowance For Credit Loss [Abstract]          
Beginning Balance $ 2,770 $ 2,360 $ 1,992 $ 1,992  
Provision for expected credit losses 497 901 726 2,124 $ 1,198
Accounts written off (218) (491) (358)    
Ending Balance $ 3,049 $ 2,770 $ 2,360 $ 3,049