Annual report pursuant to Section 13 and 15(d)

Receivables and Unbilled Receivables - Allowance for Credit Losses (Details)

v3.20.4
Receivables and Unbilled Receivables - Allowance for Credit Losses (Details)
$ in Thousands
12 Months Ended
Dec. 31, 2020
USD ($)
Accounts Receivable, Allowance for Credit Loss [Roll Forward]  
Balance as of December 31, 2019 $ 396
Change in estimates 1,767
Write-offs (441)
Recoveries (229)
Balance as of December 31, 2020 $ 1,493