Composition Of Certain Financial Statement Captions (Schedule Of Accrued Liabilities) (Details) - USD ($) $ in Thousands	Sep. 29, 2017	Sep. 30, 2016
Composition Of Certain Financial Statement Captions [Abstract]
Accrual for Unpaid, Property, Plant and Equipment Additions	$ 10,096	$ 17,100
Accrued royalties	2,274	1,939
Amounts payable to joint licensing program partners	49,141	34,472
Accrued compensation and benefits	92,277	71,261
Accrued professional fees	5,530	6,528
Other accrued liabilities	47,716	37,755
Accrued liabilities	$ 207,034	$ 169,055