Acquisition (Business Combination) (Details) (USD $)	3 Months Ended		0 Months Ended	3 Months Ended
	Dec. 29, 2012	Dec. 31, 2011	Oct. 02, 2012 Servigistics, Inc [Member] employees	Dec. 29, 2012 Servigistics, Inc [Member]	Dec. 31, 2011 MKS and 4CS [Member]	Sep. 30, 2012 Line of Credit [Member] Servigistics, Inc [Member]
Business Acquisition [Line Items]
Cash paid to acquire business, net of cash acquired	$ 222,423,000	$ 880,000	$ 222,423,000
Cash acquired from acquisition			1,400,000
Annualized revenue reported by acquired entity			80,000,000
Number of employees of acquiree			400
Revolving credit facility, additional borrowings to finance acquisition						230,000,000
Revenue of acquirees since acquisition dates, actual				25,300,000
Costs and expenses of acquirees since acquisition dates, actual				21,600,000
Acquisition-related cost				$ 4,600,000	$ 2,100,000