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BASIS OF PRESENTATION AND SUMMARY OF ACCOUNTING POLICIES - Additional Information (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Mar. 31, 2021 | Mar. 31, 2020 | Dec. 31, 2020 | Dec. 31, 2019
Schedule Of Significant Accounting Policies [Line Items] |  |  |  |
Percentage of total annual net sales in the third and fourth quarters |  |  | 62.00% | 60.00%
Receivables Purchase Agreement |  |  |  |
Schedule Of Significant Accounting Policies [Line Items] |  |  |  |
Sale of receivables | $ 40.6 | $ 37.9 |  |
Receivables sold outstanding | 25.6 | 23.2 |  |
Receivables Purchase Agreement | Selling, general and administrative expense |  |  |  |
Schedule Of Significant Accounting Policies [Line Items] |  |  |  |
Charge related to sale of receivables | $ 0.1 | $ 0.2 |  |

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- Definition Percentage of total annual net sales in the third and fourth quarters. + References No definition available. + Details
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- Definition Amount of derecognized financial assets from transactions which comprise an initial transfer and an agreement entered into in contemplation of the initial transfer resulting in retention of substantially all of the exposure to the economic return throughout the term of the transaction, at the date of derecognition. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 860 -SubTopic 20 -Section 50 -Paragraph 4D -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=121570589&loc=SL51823488-111719 + Details
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- Details
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