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Accumulated Other Comprehensive Income (Loss) (Tables) | 6 Months Ended
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Mar. 29, 2025
Accumulated Other Comprehensive Income [Abstract] |
Changes in Accumulated Other Comprehensive Income | The following tables summarize the changes in accumulated balances of other comprehensive income (loss) for the periods presented:
| Three Months Ended March 29, 2025 |  | Six Months Ended March 29, 2025
| Foreign Currency Translation |  |  |  | Available-For-Sale Debt Securities |  | Hedged Interest Rate Swaps |  | Total |  | Foreign Currency Translation |  | Available-For-Sale Debt Securities |  |  |  | Hedged Interest Rate Swaps |  | Total
Beginning Balance | $ | (169.7) |  |  |  |  | $ | 0.3 |  |  | $ | 6.7 |  |  | $ | (162.7) |  |  | $ | (114.9) |  |  | $ | 1.6 |  |  |  |  | $ | 1.8 |  |  | $ | (111.5) |
Other comprehensive income (loss) before reclassifications | 25.4 |  |  |  |  | (0.1) |  |  | (2.7) |  |  | 22.6 |  |  | (29.4) |  |  | (1.4) |  |  |  |  | 2.2 |  |  | (28.6) |
Ending Balance | $ | (144.3) |  |  |  |  | $ | 0.2 |  |  | $ | 4.0 |  |  | $ | (140.1) |  |  | $ | (144.3) |  |  | $ | 0.2 |  |  |  |  | $ | 4.0 |  |  | $ | (140.1) |
| Three Months Ended March 30, 2024 |  | Six Months Ended March 30, 2024
| Foreign Currency Translation |  |  |  | Pension Plans |  |  |  | Hedged Interest Rate Swaps |  | Total |  | Foreign Currency Translation |  | Pension Plans |  |  |  | Hedged Interest Rate Swaps |  | Total
Beginning Balance | $ | (125.0) |  |  |  |  | $ | 0.3 |  |  |  |  | $ | 5.9 |  |  | $ | (118.8) |  |  | $ | (168.0) |  |  | $ | 0.3 |  |  |  |  | $ | 20.1 |  |  | $ | (147.6) |
Other comprehensive income (loss) before reclassifications | (22.8) |  |  |  |  | — |  |  |  |  | 4.6 |  |  | (18.2) |  |  | 20.2 |  |  | — |  |  |  |  | (9.6) |  |  | 10.6 |
Ending Balance | $ | (147.8) |  |  |  |  | $ | 0.3 |  |  |  |  | $ | 10.5 |  |  | $ | (137.0) |  |  | $ | (147.8) |  |  | $ | 0.3 |  |  |  |  | $ | 10.5 |  |  | $ | (137.0) |

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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://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 14A -Publisher FASB -URI https://asc.fasb.org/1943274/2147482790/220-10-45-14A Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 830 -SubTopic 30 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org/1943274/2147481674/830-30-50-1 Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 830 -SubTopic 30 -Name Accounting Standards Codification -Section 45 -Paragraph 20 -Publisher FASB -URI https://asc.fasb.org/1943274/2147481694/830-30-45-20 + Details
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