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Leases And Rental Expense (Narrative) (Details) - USD ($) $ in Millions	12 Months Ended
	Sep. 24, 2022	Sep. 25, 2021	Sep. 26, 2020
Leases and Rental Expense [Abstract]
Initial terms of leases	20 years
Rent expense for all operating leases	$ 10.9	$ 11.1	$ 11.1
Operating sub-lease rental income	0.3	$ 0.3	$ 0.3
Lease extension exercised, increase in operating lease assets and liabilities	$ 7.9
Weighted average remaining lease term	13 years 4 months 24 days
Weighted average discount rate	3.51%

X

- Definition

Lease Extension Exercised, Increase In Operating Lease Assets And Liabilities

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- Definition

Term of lessee's operating lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 50
-Paragraph 3
-Subparagraph (a)(3)
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- Definition

Weighted average discount rate for operating lease calculated at point in time.

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 50
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- Definition

Weighted average remaining lease term for operating lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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- Definition

Cash payments to lessor's for use of assets under operating leases.

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- Definition

Amount of sublease income excluding finance and operating lease expense.

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