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Investments In Associated Companies - Narrative (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Mar. 24, 2024	Mar. 26, 2023	Mar. 24, 2024	Mar. 26, 2023
MNI
Schedule of Equity Method Investments [Line Items]
Equity method investments, ownership percentage	50.00%		50.00%
TNI Partners
Schedule of Equity Method Investments [Line Items]
Distribution from equity method investments	$ 0.9	$ 1.4	$ 2.1	$ 2.3
MNI
Schedule of Equity Method Investments [Line Items]
Distribution from equity method investments	$ 0.2	$ 0.1	$ 0.6	$ 0.4

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Amount of distribution received from equity method investee for return on investment, classified as operating activities. Excludes distribution for return of investment, classified as investing activities.

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