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Credit Losses (Tables) | 9 Months Ended
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Jun. 30, 2021
Receivables [Abstract] |
Summary of Change in Allowance for Credit Losses | The change in the allowance for credit losses for the nine months ended June 30, 2021 is as follows (dollars in thousands):
|  | Allowance for Credit Losses |
Balance as of September 30, 2020 |  | $ | (1,394 | )
Current period recovery for expected credit losses |  |  | 521 |
Write-offs charged against the allowance for expected credit losses |  |  | (109 | )
Foreign exchange impact on ending balance |  |  | 82 |
Balance as of June 30, 2021 |  | $ | (900 | )

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- Definition Tabular disclosure of allowance for credit loss of financing receivable, classified as current. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=121611835&loc=SL6953423-111524 Reference 2: 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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