Stock-Based Compensation (Schedule Of Classification Of Compensation Expense) (Details) (USD $) In Thousands	3 Months Ended		9 Months Ended
	Jul. 02, 2011	Jul. 03, 2010	Jul. 02, 2011	Jul. 03, 2010
Total stock-based compensation expense	$ 11,560	$ 11,510	$ 32,458	$ 37,657
Cost Of License Revenue [Member]
Total stock-based compensation expense	4	2	10	21
Cost Of Service Revenue [Member]
Total stock-based compensation expense	1,857	2,186	5,577	7,007
Sales And Marketing [Member]
Total stock-based compensation expense	3,062	3,471	7,841	10,065
Research And Development [Member]
Total stock-based compensation expense	2,010	2,252	6,152	7,294
General And Administrative [Member]
Total stock-based compensation expense	$ 4,627	$ 3,599	$ 12,878	$ 13,270