Debt, Finance Lease and Other Financing Obligations - Schedule of Debt, Finance Lease and Other Financing Obligations (Details) - USD ($) $ in Thousands	Mar. 30, 2024	Sep. 30, 2023
Debt Instrument [Line Items]
Long-term debt, gross	$ 389,000	$ 383,000
Finance lease and other financing obligations	49,988	49,233
Unamortized deferred financing fees	(999)	(1,175)
Total obligations	437,989	431,058
Current portion of long-term debt and finance lease obligations	(245,964)	(240,205)
Long-term debt, finance lease and other financing obligations, net of current portion	192,025	190,853
Senior Notes | 4.05% Senior Notes, due June 15, 2025
Debt Instrument [Line Items]
Long-term debt, gross	$ 100,000	$ 100,000
Interest Rate, Senior Notes	4.05%	4.05%
Senior Notes | 4.22% Senior Notes, due June 15, 2028
Debt Instrument [Line Items]
Long-term debt, gross	$ 50,000	$ 50,000
Interest Rate, Senior Notes	4.22%	4.22%
Line of Credit | Borrowings under the Credit Facility
Debt Instrument [Line Items]
Long-term debt, gross	$ 239,000	$ 233,000