Changes in Accumulated Other Comprehensive Income by Component Reclassifications Out of AOCI (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 29, 2013	Sep. 30, 2012	Sep. 29, 2013	Sep. 30, 2012	Sep. 29, 2013	Sep. 30, 2012
Accumulated Other Comprehensive Income (Loss) [Line Items]
Net effect of swaps	$ 1,377	$ (175)	$ 8,315	$ (1,318)	$ 8,141	$ (10,930)
Income before taxes	248,449	192,925	162,714	153,935	142,393	133,761
Provision (benefit) for taxes	(58,025)	(51,912)	(34,026)	(41,754)	(24,030)	(27,858)
Net income	190,424	141,013	128,688	112,181	118,363	105,903
Reclassification out of Accumulated Other Comprehensive Income [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Income before taxes	1,986		12,146		11,972
Provision (benefit) for taxes	(307)		(1,843)		(1,816)
Net income	1,679		10,303		10,156
Interest Rate Contracts [Member] | Accumulated Net Gain (Loss) from Designated or Qualifying Cash Flow Hedges [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Net effect of swaps	$ (1,986)		$ (12,146)		$ (11,972)