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Pension, Postretirement, and Postemployement Obligations (Details) (USD $)
 3 Months Ended 6 Months Ended 12 Months Ended
Mar. 30, 2014
Mar. 31, 2013
Mar. 30, 2014
Mar. 31, 2013
Sep. 28, 2014
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]          
Defined Benefit Plan, Estimated Future Employer Contributions in Current Fiscal Year         $ 700,000
Pension Plans, Defined Benefit [Member]
          
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]          
Defined Benefit Plan, Service Cost 39,000 54,000 78,000 108,000  
Defined Benefit Plan, Interest Cost 1,999,000 1,882,000 3,998,000 3,764,000  
Defined Benefit Plan, Expected Return on Plan Assets 2,483,000 2,459,000 (4,966,000) (4,918,000)  
Defined Benefit Plan, Amortization of Net Gains (Losses) 106,000 572,000 212,000 1,144,000  
Defined Benefit Plan, Amortization of Net Prior Service Cost (Credit) 34,000 34,000 (68,000) (68,000)  
Defined Benefit Plan, Net Periodic Benefit Cost (373,000) 15,000 (746,000) 30,000  
Other Postretirement Benefit Plans, Defined Benefit [Member]
          
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]          
Defined Benefit Plan, Estimated Future Employer Contributions in Current Fiscal Year         0
Defined Benefit Plan, Service Cost 149,000 182,000 298,000 364,000  
Defined Benefit Plan, Interest Cost 228,000 281,000 456,000 562,000  
Defined Benefit Plan, Expected Return on Plan Assets (371,000) (368,000) (742,000) (736,000)  
Defined Benefit Plan, Amortization of Net Gains (Losses) (455,000) (331,000) (910,000) (662,000)  
Defined Benefit Plan, Amortization of Net Prior Service Cost (Credit) (365,000) (365,000) (730,000) (730,000)  
Defined Benefit Plan, Net Periodic Benefit Cost $ (814,000) $ (601,000) $ (1,628,000) $ (1,202,000)