Transactions with Related Parties	12 Months Ended
	Sep. 30, 2023
Related Party Transactions [Abstract]
Transactions with Related Parties	Transactions with Related PartiesDuring fiscal 2023, 2022 and 2021, Tech Pac, a subsidiary of the Company, made purchases from Contract Packaging, Inc, (“CPI”), Tech Pac’s principal supplier and a minority 20% shareholder in Tech Pac. Tech Pac’s total purchases from CPI were approximately $31.0 million, $41.0 million and $42.6 million for fiscal years 2023, 2022 and 2021, respectively. Amounts due to CPI as of September 30, 2023 and September 24, 2022 were $1.6 million and $1.0 million, respectively.