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Operations and Summary of Significant Accounting Policies (Tables) | 12 Months Ended
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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, 2019 | Charged to Expense | Write-Offs 1 | December 31, 2020
Allowance for Doubtful Accounts | $ | 1,935 |  | $ | (98) |  | $ | (273) |  | $ | 2,110 |
1 Amount is net of recoveries and the effect of foreign currency fluctuations for the year ended December 31, 2020

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- Definition Tabular disclosure of allowance for credit loss on accounts receivable. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 13 -URI http://asc.fasb.org/extlink&oid=119407570&loc=SL82919249-210447 + Details
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