Stock-based Compensation (Schedule of Classification of Compensation Expense) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Dec. 28, 2013	Dec. 29, 2012
Total stock-based compensation expense	$ 12,764	$ 11,893
Cost of License Revenue
Total stock-based compensation expense	4	5
Cost of Service Revenue
Total stock-based compensation expense	1,598	1,612
Cost of Support Revenue
Total stock-based compensation expense	924	826
Sales and Marketing
Total stock-based compensation expense	2,499	2,458
Research and Development
Total stock-based compensation expense	2,689	2,512
General and Administrative
Total stock-based compensation expense	$ 5,050	$ 4,480