Schedule ll - Valuation and Qualifying Accounts - Valuation and Qualifying Accounts (Details) - USD ($) $ in Thousands		12 Months Ended
		Sep. 30, 2023	Sep. 24, 2022	Sep. 25, 2021
Opening balance		$ 2,158	$ 1,405	$ 1,388
Charged to expense		1,428	1,781	338
Deductions	[1]	404	1,028	321
Closing balance		$ 3,182	$ 2,158	$ 1,405

[1] Write-offs of uncollectible accounts receivable.