Acquisitions (Narrative) (Details) (Vyatta, USD $) In Millions, unless otherwise specified	3 Months Ended	9 Months Ended
	Jan. 26, 2013	Aug. 02, 2014
Vyatta
Business Acquisition
Effective Date of Acquisition		Nov. 09, 2012
Acquisition Cost Expensed	$ 0.4
Consideration Paid Held In Escrow, Amount	7.0
Consideration Paid Held In Escrow, Escrow Duration	18 months
Business Combination, Consideration Transferred
Cash consideration	43.6
Prepaid license fees consideration	1.2
Total purchase price	$ 44.8