Interest Rate Swaps in Effect (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 30, 2019	Mar. 31, 2018	Dec. 29, 2018
Debt Disclosure [Line Items]
Fixed Interest Rate	2.22%
Derivative Notional Amount, NonCurrent	$ 948,000
Interest Rate Derivative Liabilities, at Fair Value	3,200
Foreign Exchange Forward
Debt Disclosure [Line Items]
Derivative, Fair Value, Net	(700)
Other Noncurrent Assets | Interest Rate Swap
Debt Disclosure [Line Items]
Interest Rate Fair Value Hedge Asset at Fair Value	8,160		$ 13,487
Other Comprehensive Income | Interest Rate Swap
Debt Disclosure [Line Items]
Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, before Tax	(11,789)	$ 6,620
Interest Expense | Interest Rate Swap
Debt Disclosure [Line Items]
Gain/(loss) reclassified from accumulated other comprehensive income (effective portion)	766	(12)
Other Expense | Interest Rate Swap
Debt Disclosure [Line Items]
Derivative Instruments, Gain (Loss) Recognized in Income, Ineffective Portion and Amount Excluded from Effectiveness Testing, Net	$ 0	$ 48