Derivative Instruments (Gains Or Losses Recognized On Interest Rate Swap Derivative Instrument) (Details) - USD ($) $ in Thousands	12 Months Ended
	Oct. 02, 2016	Sep. 27, 2015	Sep. 28, 2014
Derivative Instruments, Gain (Loss) [Line Items]
Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, before Tax	$ (25,439)	$ (26,596)	$ (1,890)
Net loss reclassified to earnings	4,048	2,011	1,291
Interest Rate Swaps [Member] | Derivatives Designated As Hedging Instrument [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, before Tax	(25,439)	(26,596)	(1,890)
Interest Rate Swaps [Member] | Interest Expense, Net [Member] | Derivatives Designated As Hedging Instrument [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Net loss reclassified to earnings	$ 4,048	$ 2,011	$ 1,291