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DESCRIPTION OF BUSINESS (Details) $ in Millions |  | 12 Months Ended
--- | --- | ---
Sep. 08, 2021 USD ($) | Sep. 30, 2021 USD ($) segment | Sep. 30, 2020 USD ($) | Sep. 30, 2019 USD ($)
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |
Number of segments | segment |  | 3 |  |
Proceeds from sale of discontinued operations, net of cash |  | $ 0.0 | $ 3.6 | $ 2,859.5
HHI Segment |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |
Proceeds from sale of discontinued operations, net of cash | $ 4,300.0 |  |  |

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- Definition The cash inflow associated with the amount received from the sale of a portion of the company's business, for example a segment, division, branch or other business, during the period. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 12 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=123570139&loc=d3e3179-108585 + Details
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