Long-Term Debt (Schedule of Long-Term Debt And Short-Term Loans) (Details) - USD ($)	Sep. 24, 2016	Sep. 26, 2015
Debt Instrument [Line Items]
Less unamortized prepaid loan costs	$ (8,105,090)	$ (9,289,265)
Total long-term debt	876,474,094	886,053,527
Less current portion	10,000,629	11,367,710
Long-term debt, net of current portion	866,473,465	874,685,817
Senior Notes, Interest Rate of 5.75%, Maturing 2023 [Member]
Debt Instrument [Line Items]
Bonds payable	$ 700,000,000	$ 700,000,000
Interest rate	5.75%	5.75%
Recovery Zone Facility Bonds [Member]
Debt Instrument [Line Items]
Bonds payable	$ 86,150,000	$ 90,680,000
Line of credit payable [Member]
Debt Instrument [Line Items]
Outstanding line of credit, weighted average interest rate of 4.50% for 2015		$ 460,005
Weighted average interest rate		4.50%
Due to Banks, Weighted Average Interest Rate of 3.38% for 2016 and 3.29% for 2015 [Member]
Debt Instrument [Line Items]
Notes payable	$ 98,429,184	$ 103,507,307
Weighted average interest rate	3.38%	3.29%
Due to Other Financial Institutions, Weighted Average Interest Rate of 7.58% for 2015 [Member]
Debt Instrument [Line Items]
Notes payable		$ 695,480
Weighted average interest rate		7.58%

Long Term Bonds Payable

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Contractual interest rate for funds borrowed, under the debt agreement.

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-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 10
-Section S99
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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Weighted average interest rate of debt outstanding.

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No definition available.

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For an unclassified balance sheet, the carrying amount (net of accumulated amortization) as of the balance sheet date of capitalized costs associated with the issuance of debt instruments (for example, legal, accounting, underwriting, printing, and registration costs) that will be charged against earnings over the life of the debt instruments to which such costs pertain.

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-Publisher FASB
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The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

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Carrying amount of long-term debt, net of unamortized discount or premium, including current and noncurrent amounts. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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Amount of long-term debt, after unamortized discount or premium, scheduled to be repaid within one year or the normal operating cycle, if longer. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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Carrying amount of long-term debt, net of unamortized discount or premium, excluding amounts to be repaid within one year or the normal operating cycle, if longer (current maturities). Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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Carrying value as of the balance sheet date of notes payable (with maturities initially due after one year or beyond the operating cycle if longer), excluding current portion.

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