Stock-based Compensation (Schedule of Classification of Compensation Expense) (Details) - USD ($) $ in Thousands	3 Months Ended			9 Months Ended
	Jul. 02, 2016	Jan. 02, 2016	Jul. 04, 2015	Jul. 02, 2016	Jul. 04, 2015
Total stock-based compensation expense	$ 13,796		$ 14,071	$ 51,821	$ 38,135
Cost of software revenue
Total stock-based compensation expense	1,158		1,133	4,163	3,158
Cost of professional service revenue
Total stock-based compensation expense	1,342		1,317	4,072	4,510
Sales and Marketing
Total stock-based compensation expense	3,195		4,075	11,254	10,821
Research and Development
Total stock-based compensation expense	2,531		2,928	7,578	9,015
General and Administrative
Total stock-based compensation expense	$ 5,570		$ 4,618	$ 24,754	$ 10,631
stock modification [Member]
Total stock-based compensation expense		$ 10,000