Changes in Accumulated Other Comprehensive Income by Component (Reclassifications Out of AOCI) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 29, 2019	Sep. 23, 2018	Sep. 29, 2019	Sep. 23, 2018
Accumulated Other Comprehensive Income (Loss) [Line Items]
Net effect of swaps	$ (27,160)	$ (20,934)	$ (70,693)	$ (61,752)
Provision (benefit) for taxes	(48,815)	(38,770)	(43,506)	(33,301)
Net income	189,955	213,307	169,580	149,150
Cash Flow Hedging Derivative Activity [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Provision (benefit) for taxes	0		0
Net income	0		0
Cash Flow Hedging Derivative Activity [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Provision (benefit) for taxes		(249)		(845)
Net income		2,116		6,250
Interest Rate Swap [Member] | Cash Flow Hedging Derivative Activity [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Net effect of swaps	$ 0		$ 0
Interest Rate Swap [Member] | Cash Flow Hedging Derivative Activity [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Net effect of swaps		$ 2,365		$ 7,095