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Basis of Presentation (Tables) | 6 Months Ended
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Mar. 31, 2021
Organization, Consolidation and Presentation of Financial Statements [Abstract] |
Accounts Receivable, Allowance for Credit Loss | The following table summarizes the activity for the accounts receivable allowance for doubtful accounts for the six months ended March 31, 2021:
|  |  | Accounts Receivable Allowance for Doubtful Accounts
| Balance at October 1, 2020 |  | $ | 9,618 |
| Current period expense / (deductions) |  | (621) |
| Translation and other adjustments (1) |  | (216) |
| Balance at March 31, 2021 |  | $ | 8,781 |
(1) Includes the impact of foreign currency fluctuations and amounts determined not to be collectible (including direct write-offs), net of recoveries.

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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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