CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Unaudited) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Dec. 29, 2012	Dec. 24, 2011
CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Unaudited) [Abstract]
Net income	$ 59,788	$ 23,232
Other comprehensive income:
Net unrealized (losses) gains on cash flow hedges	(154)	317
Reclassification of realized losses on cash flow hedges into earnings	861	695
Amortization of net actuarial losses and prior service credits into earnings	1,199	1,196
Other comprehensive income	1,906	2,208
Total comprehensive income	$ 61,694	$ 25,440