Organization and Significant Accounting Policies - Cost of Goods Sold, Additional Information (Details) - USD ($) $ in Millions	12 Months Ended
	Sep. 30, 2023	Sep. 24, 2022	Sep. 25, 2021
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Cost of shipping and handling included in selling, general and administrative expenses	$ 97.1	$ 100.8	$ 108.0