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Organization and Significant Accounting Policies - Advertising Costs, Additional Information (Details) - USD ($) $ in Millions | 12 Months Ended
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Sep. 30, 2023 | Sep. 24, 2022 | Sep. 25, 2021
Organization, Consolidation and Presentation of Financial Statements [Abstract] |  |  |
Advertising expenses | $ 43.6 | $ 54.7 | $ 54.6

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- Definition Amount charged to advertising expense for the period, which are expenses incurred with the objective of increasing revenue for a specified brand, product or product line. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 720 -SubTopic 35 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org//1943274/2147483406/720-35-50-1 + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- References No definition available. + Details
Name: | us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration