XML 45 R29.htm IDEA: XBRL DOCUMENT v3.20.4
Operations and Summary of Significant Accounting Policies (Tables)
12 Months Ended
Dec. 31, 2020
Organization, Consolidation and Presentation of Financial Statements [Abstract]  
Accounts Receivable, Allowance for Credit Loss
The changes in the allowance for doubtful accounts receivable for the year ended December 31, 2020 are outlined in the table below:

Balance
at
Amounts Balance
at
(in thousands)December 31, 2019Charged to Expense
Write-Offs1
December 31, 2020
Allowance for Doubtful Accounts$1,935 $(98)$(273)$2,110 

1Amount is net of recoveries and the effect of foreign currency fluctuations for the year ended December 31, 2020