Subsequent Events (Acquisition) (Details) (USD $)	3 Months Ended		0 Months Ended
	Dec. 28, 2013	Dec. 29, 2012	Dec. 27, 2013 ThingWorx Credit Facility	Dec. 30, 2013 ThingWorx Subsequent Event employees	Dec. 30, 2014 ThingWorx Subsequent Event
Subsequent Event [Line Items]
Acquisitions of businesses, net of cash acquired	$ 0	$ 222,423,000		$ 112,000,000
Contingent consideration, liability to former stockholders					18,000,000
Borrowings under credit facility	$ 110,000,000	$ 0	$ 110,000,000
Number of employees of acquiree				40