Pension, Postretirement, and Postemployement Obligations (Details) (USD $)	3 Months Ended		6 Months Ended
	Mar. 31, 2013	Mar. 25, 2012	Mar. 31, 2013	Mar. 25, 2012
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined Benefit Plan, Estimated Future Employer Contributions in Current Fiscal Year	$ 5,000,000		$ 5,000,000
Pension Plans, Defined Benefit [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined Benefit Plan, Service Cost	54,000	7,000	108,000	14,000
Defined Benefit Plan, Interest Cost	1,882,000	1,994,000	3,764,000	3,988,000
Defined Benefit Plan, Expected Return on Plan Assets	(2,459,000)	(2,223,000)	(4,918,000)	(4,446,000)
Defined Benefit Plan, Amortization of Net Gains (Losses)	572,000	593,000	1,144,000	1,186,000
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	15,000	337,000	30,000	674,000
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		0
Defined Benefit Plan, Service Cost	182	182	364,000	364
Defined Benefit Plan, Interest Cost	281	277	562,000	554
Defined Benefit Plan, Expected Return on Plan Assets	(368)	(532)	(736,000)	(1,064)
Defined Benefit Plan, Amortization of Net Gains (Losses)	(331)	(613)	(662,000)	(1,226)
Defined Benefit Plan, Amortization of Net Prior Service Cost (Credit)	(365)	(365)	(730,000)	(730)
Defined Benefit Plan, Net Periodic Benefit Cost	$ (601)	$ (1,051)	$ (1,202,000)	$ (2,102)