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Basis of Presentation (Tables) | 9 Months Ended
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Sep. 30, 2021
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 nine months ended September 30, 2021 are outlined in the table below:
| Balance at |  |  | Balance at
(in thousands) | December 31, 2020 | Expense (Deductions), net | Write-Offs 1 | September 30, 2021
Allowance for Doubtful Accounts | $ | 2,110 |  | 74 |  | 514 |  | $ | 1,670 |
1 Amount is net of recoveries and the effect of foreign currency fluctuations for the nine months ended September 30, 2021.

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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=121599337&loc=SL82919249-210447 + Details
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