Amounts Reclassified Out of Accumulated Other Comprehensive Income (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended			6 Months Ended
	Mar. 29, 2014		Mar. 30, 2013	Mar. 29, 2014		Mar. 30, 2013
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance beginning	$ (46,211)			$ (47,353)
Other comprehensive income before reclassifications	(90)			(256)
Amounts reclassified from accumulated other comprehensive income	1,301			2,609
Other comprehensive income	1,211		2,209	2,353		4,115
Balance ending	(45,000)			(45,000)
Gains and Losses on Cash Flow Hedges [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance beginning	(2,241)			(2,428)
Other comprehensive income before reclassifications	(90)			(256)
Amounts reclassified from accumulated other comprehensive income	346	[1]		699	[1]
Other comprehensive income	256			443
Balance ending	(1,985)			(1,985)
Pension Benefits [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance beginning	(48,864)			(49,987)
Other comprehensive income before reclassifications	0			0
Amounts reclassified from accumulated other comprehensive income	1,123	[2]		2,246	[2]
Other comprehensive income	1,123			2,246
Balance ending	(47,741)			(47,741)
Post-Retirement Benefits [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance beginning	4,894			5,062
Other comprehensive income before reclassifications	0			0
Amounts reclassified from accumulated other comprehensive income	(168)	[2]		(336)	[2]
Other comprehensive income	(168)			(336)
Balance ending	$ 4,726			$ 4,726

[1] Reclassification of realized losses on cash flow hedges are recognized in interest expense.

[2] These amounts are included in the computation of net periodic benefit cost. See Note 12, “Pension Plan and Other Postretirement Benefits”.