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Income Taxes (Details) - USD ($) $ / shares in Units, $ in Millions | 12 Months Ended
--- | ---
Oct. 03, 2025 | Sep. 27, 2024 | Sep. 29, 2023
Income Taxes [Line Items] |  |  |
US federal statutory income tax rate | 21.00% | 21.00% | 21.00%
Deemed repatriation tax, liability, current | $ 56.3 | $ 46.1 |
Deemed repatriation tax, liability, noncurrent |  | 57.0 |
Income tax holiday, Singapore | September 30, 2030 |  |
Impact of income tax holiday, Singapore | $ 6.6 | $ 67.7 | $ 66.0
Impact of income tax holiday on diluted earnings per share, Singapore (in dollars per share) | $ 0.04 | $ 0.42 | $ 0.41
Valuation allowance, amount | $ 186.8 | $ 174.1 |
Tax benefit to recognize if valuation allowance is reversed | 186.8 |  |
Future taxable income needed to utilize deferred tax assets | 1,600.0 |  |
Valuation allowance, increase (decrease), amount | 12.7 |  |
Total unrecognized tax benefits that would impact the effective tax rate | 47.7 |  |
Change in unrecognized tax benefits, amount of unrecorded benefit | 5.5 |  |
Unrecognized tax benefits, income tax penalties and interest expense | 2.5 | 5.5 | $ 2.9
Unrecognized tax benefits, income tax penalties and interest accrued | 9.9 | $ 11.7 |
Adjustments to previous tax returns |  |  | $ 1.6
US federal and state |  |  |
Income Taxes [Line Items] |  |  |
Valuation allowance, amount | 170.2 |  |
Foreign |  |  |
Income Taxes [Line Items] |  |  |
Valuation allowance, amount | $ 16.6 |  |
United States |  |  |
Income Taxes [Line Items] |  |  |
Open tax year | 2022 |  |
California |  |  |
Income Taxes [Line Items] |  |  |
Open tax year | 2008 |  |
Canada |  |  |
Income Taxes [Line Items] |  |  |
Open tax year | 2018 |  |
Mexico |  |  |
Income Taxes [Line Items] |  |  |
Open tax year | 2019 |  |
Japan |  |  |
Income Taxes [Line Items] |  |  |
Open tax year | 2018 |  |
Singapore |  |  |
Income Taxes [Line Items] |  |  |
Open tax year | 2020 |  |

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- Definition Amount of deferred tax assets for which it is more likely than not that a tax benefit will not be realized. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 740 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482685/740-10-50-2 + Details
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- Definition The amount of income taxes from which a reporting entity is exempt or for which it will receive a reduction in income taxes as a result of the income tax holiday granted by the taxing jurisdiction. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 740 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 2 -Subparagraph (SAB Topic 11.C) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479360/740-10-S99-2 + Details
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- Definition The amount of the unrecognized tax benefit of a position taken for which it is reasonably possible that the total amount thereof will significantly increase or decrease within twelve months of the balance sheet date. + References Reference 1: http://fasb.org/us-gaap/role/ref/otherTransitionRef -Topic 740 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 15 -Subparagraph (d) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482685/740-10-50-15 + Details
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- Definition Amount of increase (decrease) to previously recorded tax expense. Includes, but is not limited to, significant settlements of income tax disputes, and unusual tax positions or infrequent actions taken by the entity, including tax assessment reversal, and IRS tax settlement. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 740 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 9 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482685/740-10-50-9 + Details
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