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Accrued Expenses And Current Portion Of Other Long-Term Liabilities (Narrative) (Details) (USD $)
 3 Months Ended 6 Months Ended
Mar. 29, 2014
Mar. 30, 2013
Mar. 29, 2014
Mar. 30, 2013
Accrued Expenses And Current Portion Of Other Long-Term Liabilities [Abstract]        
Workers' compensation per occurrence covered under insurance cost $ 750,000   $ 750,000  
General liability 500,000   500,000  
Medical care benefits per person covered under insurance cost 325,000   325,000  
Self insurance reserves 29,400,000   29,400,000  
Employee insurance expense 3,500,000 9,300,000 12,000,000 17,800,000
Self insurance reserves, current 12,100,000   12,100,000  
Self insurance reserves, noncurrent $ 17,300,000   $ 17,300,000