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Supplementary Balance Sheet Information (Accrued Expenses And Current Portion Of Other Long-Term Liabilities) (Details) - USD ($)	Sep. 26, 2015	Sep. 27, 2014
Supplementary Balance Sheet Information [Line Items]
Property, payroll, and other taxes payable	$ 17,882,565	$ 16,469,128
Salaries, wages and bonuses payable	26,336,530	25,514,842
Interest	12,623,691	12,676,648
Other	2,984,655	3,349,190
Accrued expenses and current portion of other long-term liabilities	74,552,234	70,944,728
Employee Group Insurance [Member]
Supplementary Balance Sheet Information [Line Items]
Self-insurance liabilities	5,166,501	4,585,759
Workers Compensation Insurance [Member]
Supplementary Balance Sheet Information [Line Items]
Self-insurance liabilities	6,752,941	5,677,217
General Liability [Member]
Supplementary Balance Sheet Information [Line Items]
Self-insurance liabilities	$ 2,805,351	$ 2,671,944

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Carrying value as of the balance sheet date of obligations incurred and payable for real and property taxes. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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