Goodwill and Intangible Assets (Amortization of Intangible Assets) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Jun. 28, 2014	Jun. 29, 2013	Jun. 28, 2014	Jun. 29, 2013
Goodwill and Intangible Assets Disclosure [Abstract]
Amortization of acquired intangible assets	$ 7,998	$ 6,532	$ 23,772	$ 19,795
Cost of license revenue	4,323	4,598	13,044	13,865
Cost of service revenue	92	0	275	0
Total amortization expense	$ 12,413	$ 11,130	$ 37,091	$ 33,660