Indebtedness (Scheduled Principal Payments of Long-Term Debt) (Details) - USD ($) $ in Thousands	Sep. 27, 2020	Sep. 29, 2019
Debt Disclosure [Abstract]
2021	$ 818
2022	844
2023	571,558
2024	351
2025	28
Thereafter	827,462
Total debt	$ 1,401,061	$ 1,303,594

Long-term Debt and Lease Obligations, Maturities, Repayments of Principal after Year Five

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Long-term Debt and Lease Obligations, Maturities, Repayments of Principal in Year Five

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Long-term Debt and Lease Obligations, Maturities, Repayments of Principal in Year Four

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Long-term Debt and Lease Obligations, Maturities, Repayments of Principal in Year Three

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Long-term Debt and Lease Obligations, Maturities, Repayments of Principal in Year Two

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Long-term Debt and Lease Obligations, Repayments of Principal in Next Twelve Months

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Long-term Debt, Gross And Lease Obligation

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