XML 65 R51.htm IDEA: XBRL DOCUMENT v3.22.0.1
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Schedule of Activity in Allowance for Doubtful Accounts (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Accounts Receivable, Allowance for Credit Loss [Roll Forward]      
Balance, at beginning of year $ 462 $ 564 $ 2,138
Net charges to expense or reduction in revenue 1,140 425 217
Write-offs, net of recoveries (12) (527) (1,791)
Balance, at end of year $ 1,590 $ 462 $ 564