v3.20.2
Significant Accounting Policies - Change in Provision for Credit Losses (Details) - USD ($)
$ in Thousands
6 Months Ended
Jun. 30, 2020
Jun. 30, 2019
Accounts Receivable, Allowance for Credit Loss [Roll Forward]    
Balance as of January 1, 2020 $ 1,330  
Current period provision 1,267 $ 993
Amounts written off (46)  
Balance as of June 30, 2020 $ 2,551