Income Taxes (Details) (USD $)	12 Months Ended
	Sep. 30, 2012	Sep. 25, 2011	Sep. 26, 2010
Unrecognized Tax Benefits that Would Impact Effective Tax Rate	$ 3,264,000
Unrecognized Tax Benefits	4,917,000	6,752,000
Unrecognized Tax Benefits, Decreases Resulting from Prior Period Tax Positions	(163,000)
Unrecognized Tax Benefits, Decreases Resulting from Current Period Tax Positions	(360,000)
Unrecognized Tax Benefits, Reductions Resulting from Lapse of Applicable Statute of Limitations	(1,312,000)
Deferred Tax Assets, Net, Current	789,000	967,000
Deferred Tax Liabilities, Property, Plant and Equipment	(40,684,000)	(29,170,000)
Current Federal Tax Expense (Benefit)	(8,244,000)	4,604,000	8,673,000
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate	(35.00%)	(35.00%)	35.00%
Effective Income Tax Rate Reconciliation, State and Local Income Taxes	(1.90%)	(2.30%)	4.30%
Effective Income Tax Rate Reconciliation, Nondeductible Expense, Impairment Losses	0.00%	23.90%	0.00%
Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance	1.80%	1.00%	(0.10%)
Effective Income Tax Rate Reconciliation, Other Adjustments	(1.10%)	0.60%	0.60%
Effective Income Tax Rate, Continuing Operations	(40.50%)	(12.30%)	38.20%
Current State and Local Tax Expense (Benefit)	(2,210,000)	(55,000)	833,000
Deferred Tax Expense, Continuing and Discontinued Operations	(466,000)	(25,630,000)	19,116,000
Income Tax Expense (Benefit), Including Continuing and Discontinued Operations	(10,920,000)	(21,081,000)	28,622,000
Income Tax Expense (Benefit), Continuing Operations	(9,371,000)	(20,316,000)	29,308,000
Discontinued Operation, Tax Effect of Discontinued Operation	(1,549,000)	(765,000)	(686,000)
Effective Income Tax Rate Reconciliation, Equity in Earnings (Losses) of Unconsolidated Subsidiary	(6.20%)	(0.50%)	(1.40%)
Effective Income Tax Rate Reconciliation, Deductions, Qualified Production Activities	2.10%	(0.50%)	(0.80%)
Effective Income Tax Rate Reconciliation, Tax Settlements	(3.90%)	0.50%	(3.50%)
Effective Income Tax Rate Reconciliation, Change in Enacted Tax Rate	0.00%	0.00%	4.10%
Effective Income Tax Rate Reconciliation, Chapter 11 Proceedings	9.30%	0.00%	0.00%
Deferred Tax Liabilities, Investments	(11,651,000)	(6,576,000)
Deferred Tax Liabilities, Goodwill and Intangible Assets	(50,472,000)	(45,472,000)
Deferred Tax Liabilities, Debt	0	(997,000)
Deferred Tax Liabilities, Other	(1,155,000)	0
Deferred Tax Liabilities, Gross	(103,962,000)	(82,215,000)
Deferred Tax Assets, Debt	33,682,000	0
Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits, Employee Compensation	5,540,000	7,067,000
Deferred Tax Assets, Allowance For Doubtful Accounts	817,000	1,570,000
Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits, Postretirement Benefits	5,569,000	5,305,000
Deferred Tax Assets, Operating Loss Carryforwards, State and Local	24,613,000	23,515,000
Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals, Other	2,508,000	5,024,000
Deferred Tax Assets, Other	0	2,063,000
Deferred Tax Assets, Gross	72,729,000	44,544,000
Deferred Tax Assets, Valuation Allowance	(28,118,000)	(27,566,000)
Deferred Tax Liabilities, Net	(59,351,000)	(65,237,000)
Deferred Tax Assets, Net, Noncurrent	(60,140,000)	(66,204,000)
Unrecognized Tax Benefits, Interest on Income Taxes Accrued	710,000
Operating Loss Carryforwards	796,814,000
Deferred Tax Assets, Operating Loss Carryforwards	24,613,000
Valuation Allowance Not Related To Operating Loss Carryforwards	$ 3,613,000	$ 4,068,000