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Restructuring Charges - Additional Information (Details) - USD ($) $ / shares in Units, $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Jun. 30, 2024 | Jun. 30, 2023 | Jun. 30, 2024 | Jun. 30, 2023
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring charges | $ 69.8 | $ 0.0 | $ 69.8 | $ 0.0
Restructuring charges, net of tax | $ 52.2 |  |  |
Restructuring charges, per diluted share (in USD per share) | $ 0.46 |  |  |
Expected restructuring charges | $ 69.8 |  | 69.8 |
Restructuring expenses | 16.7 |  |  |
Cost of sales |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring charges | 23.2 |  | 23.2 |
Selling, General and Administrative Expenses |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring charges | 46.6 |  | $ 46.6 |
Employee Severance |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring charges | 64.7 |  |  |
Other Restructuring |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Restructuring charges | $ 5.1 |  |  |

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- Definition Amount expected to be recognized in earnings for the specified restructuring cost. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 420 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 2 -Subparagraph (SAB Topic 5.P.4.d) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479823/420-10-S99-2 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 420 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 2 -Subparagraph (SAB Topic 5.P.4.b.1) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479823/420-10-S99-2 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 420 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (b)(1) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482017/420-10-50-1 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Topic 420 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (d) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482017/420-10-50-1 + Details
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