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Accumulated Other Comprehensive Loss (Tables) | 3 Months Ended
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Dec. 31, 2022
Accumulated Other Comprehensive Income [Abstract] |
Changes in Accumulated Other Comprehensive Income | The following tables summarize the changes in accumulated balances of other comprehensive loss for the periods presented:
| Three Months Ended December 31, 2022 |  |
| Foreign Currency Translation |  | Pension Plans |  |  |  | Hedged Interest Rate Swaps |  | Total |  |  |  |  |  |  |  |  |
Beginning Balance | $ | (267.2) |  |  | $ | (0.3) |  |  |  |  | $ | 29.3 |  |  | $ | (238.2) |  |  |  |  |  |  |  |  |  |
Other comprehensive income (loss) before reclassifications | 113.8 |  |  | — |  |  |  |  | (2.9) |  |  | 110.9 |  |  |  |  |  |  |  |  |  |
Ending Balance | $ | (153.4) |  |  | $ | (0.3) |  |  |  |  | $ | 26.4 |  |  | $ | (127.3) |  |  |  |  |  |  |  |  |  |
| Three Months Ended December 25, 2021 |  |
| Foreign Currency Translation |  |  |  | Pension Plans |  |  |  | Hedged Interest Rate Swaps |  | Total |  |  |  |  |  |  |  |  |
Beginning Balance | $ | (43.1) |  |  |  |  | $ | (1.3) |  |  |  |  | $ | (14.7) |  |  | $ | (59.1) |  |  |  |  |  |  |  |  |  |
Other comprehensive income (loss) before reclassifications | (37.8) |  |  |  |  | — |  |  |  |  | 7.9 |  |  | (29.9) |  |  |  |  |  |  |  |  |  |
Ending Balance | $ | (80.9) |  |  |  |  | $ | (1.3) |  |  |  |  | $ | (6.8) |  |  | $ | (89.0) |  |  |  |  |  |  |  |  |  |

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- Definition Accumulated Other Comprehensive Income [Abstract] + References No definition available. + Details
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- Definition Tabular disclosure of the components of accumulated other comprehensive income (loss). + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 830 -SubTopic 30 -Section 50 -Paragraph 1 -URI https://asc.fasb.org/extlink&oid=6450520&loc=d3e32583-110901 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 14A -URI https://asc.fasb.org/extlink&oid=126968391&loc=SL7669686-108580 Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 830 -SubTopic 30 -Section 45 -Paragraph 20 -URI https://asc.fasb.org/extlink&oid=118261656&loc=d3e32211-110900 + Details
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