Pension, Postretirement, and Postemployement Obligations (Details) - USD ($)	3 Months Ended
	Dec. 27, 2015	Dec. 28, 2014
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Pension Contributions	$ 744,000
Defined Benefit Plan, Estimated Future Employer Contributions in Current Fiscal Year	5,037,000
Pension Plans, Defined Benefit [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined Benefit Plan, Service Cost	49,000	$ 226,000
Defined Benefit Plan, Interest Cost	1,515,000	1,859,000
Defined Benefit Plan, Expected Return on Plan Assets	(2,174,000)	(2,466,000)
Defined Benefit Plan, Amortization of Net Gains (Losses)	599,000	420,000
Defined Benefit Plan, Amortization of Net Prior Service Cost (Credit)	34,000	34,000
Defined Benefit Plan, Net Periodic Benefit Cost	(45,000)	5,000
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	16,000	39,000
Defined Benefit Plan, Interest Cost	156,000	211,000
Defined Benefit Plan, Expected Return on Plan Assets	(331,000)	(361,000)
Defined Benefit Plan, Amortization of Net Gains (Losses)	(273,000)	(347,000)
Defined Benefit Plan, Amortization of Net Prior Service Cost (Credit)	365,000	(365,000)
Defined Benefit Plan, Net Periodic Benefit Cost	$ (797,000)	$ (823,000)