Property, Plant And Equipment (Schedule Of Property, Plant And Equipment) (Details) (USD $) In Thousands, unless otherwise specified	Dec. 29, 2012	Sep. 29, 2012
Property, Plant and Equipment, Net [Abstract]
Land, buildings and improvements	$ 186,193	$ 170,557
Machinery and equipment	301,489	295,548
Computer hardware and software	87,888	85,433
Construction in progress	41,931	39,894
Property, plant and equipment, gross	617,501	591,432
Less: accumulated depreciation	336,261	326,241
Property, plant and equipment, net	$ 281,240	$ 265,191