Employee Benefit Plans Activity in AOCI (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Jun. 29, 2013	Jun. 30, 2012	Jun. 29, 2013	Jun. 30, 2012
Employee Benefit Plans [Abstract]
Balance at beginning of period	$ (270,323)	$ (228,606)	$ (280,424)	$ (234,128)
Net reclassification from AOCI into earnings [Abstract]
Reclassification from AOCI into earnings	7,270	4,960	22,865	13,878
Tax effect	(2,738)	(1,698)	(8,232)	(5,094)
Net reclassification from AOCI into earnings	4,532	3,262	14,633	8,784
Balance at end of period	$ (265,791)	$ (225,344)	$ (265,791)	$ (225,344)