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Pension, Postretirement, and Postemployement Obligations (Details) (USD $)
 12 Months Ended 3 Months Ended 12 Months Ended 3 Months Ended 12 Months Ended
Sep. 29, 2013
Sep. 30, 2012
Sep. 25, 2011
Sep. 29, 2013
Pension Plans, Defined Benefit [Member]
Sep. 29, 2013
Pension Plans, Defined Benefit [Member]
Sep. 30, 2012
Pension Plans, Defined Benefit [Member]
Sep. 25, 2011
Pension Plans, Defined Benefit [Member]
Jun. 26, 2011
Pension Plans, Defined Benefit [Member]
Sep. 25, 2011
Other Postretirement Benefit Plans, Defined Benefit [Member]
Jun. 26, 2011
Other Postretirement Benefit Plans, Defined Benefit [Member]
Mar. 27, 2011
Other Postretirement Benefit Plans, Defined Benefit [Member]
Sep. 29, 2013
Other Postretirement Benefit Plans, Defined Benefit [Member]
Sep. 30, 2012
Other Postretirement Benefit Plans, Defined Benefit [Member]
Sep. 26, 2010
Other Postretirement Benefit Plans, Defined Benefit [Member]
Dec. 26, 2010
Other Postretirement Benefit Plans, Defined Benefit [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]                              
Defined Benefit Plan, Pension Plans with Accumulated Benefit Obligations in Excess of Plan Assets, Aggregate Projected Benefit Obligation $ 4,468,000                            
Curtailment gains 0 0 16,137,000           10,172,000 3,974,000 1,991,000        
Defined Benefit Plan, Effect of Plan Amendment and Curtailment on Net Periodic Benefit Cost               188,000   82,000         769,000
Defined Benefit Plan, Effect of Plan Amendment or Curtailment on the Accumulated Benefit Obligation               592,000   3,371,000 3,030,000       15,065,000
Defined Benefit Plan, Service Cost         216,000 30,000 169,000         728,000 728,000 927,000  
Defined Benefit Plan, Interest Cost         7,529,000 7,975,000 8,354,000         1,125,000 1,109,000 1,600,000  
Defined Benefit Plan, Expected Return on Plan Assets         9,838,000 8,891,000 9,733,000         1,474,000 2,129,000 2,248,000  
Defined Benefit Plan, Amortization of Net Gains (Losses)       175,771,000 (2,287,000) 2,370,000 812,000         1,324,000 (2,451,000) (2,467,000)  
Defined Benefit Plan, Amortization of Net Prior Service Cost (Credit)         136,000 136,000 137,000         1,459,000 1,459,000 1,455,000  
Defined Benefit Plan, Recognized Net Gain (Loss) Due to Curtailments                       0 0 16,137,000  
Defined Benefit Plan, Net Periodic Benefit Cost         $ 58,000 $ 1,348,000 $ (535,000)         $ (2,404,000) $ (4,202,000) $ (19,780,000)