Derivatives And Hedging Activities (Details) $ in Thousands, € in Millions	3 Months Ended		6 Months Ended
	Jul. 05, 2020 USD ($)	Jun. 30, 2019 USD ($)	Jul. 05, 2020 USD ($)	Jun. 30, 2019 USD ($)	Jul. 05, 2020 EUR (€)	Dec. 29, 2019 USD ($)	Dec. 29, 2019 EUR (€)	Jun. 30, 2019 EUR (€)
Derivative [Line Items]
Company's business conducted outside United States			70.00%
Payments for (Proceeds from) Hedge, Financing Activities			$ (5,037)	$ 1,659
Interest Rate Cash Flow Hedge Gain (Loss) to be Reclassified During Next 12 Months, Net	$ 0		0
Foreign Currency Transaction Gain (Loss), before Tax	6,400	$ (4,400)	$ (3,500)	(4,500)
European And Asian Currencies [Member]
Derivative [Line Items]
Maximum maturity period for foreign exchange contracts, in months			12 months
Duration Of Foreign Currency Derivatives			30 days
Cash Flow Hedging [Member] | 0.6 Percent Senior Unsecured Notes due in April 2021 [Member]
Derivative [Line Items]
Unrealized Gain (Loss) on Derivatives			$ 3,800
Derivative, Notional Amount	100,000		100,000
Fair Value Hedging [Member]
Derivative [Line Items]
Derivative, Notional Amount	358,700	241,200	358,700	241,200		$ 277,600
Notional Amount of Euro Derivatives [Member]
Derivative [Line Items]
Derivative, Notional Amount | €					€ 104.8		€ 105.8	€ 15.8
Notional Amount of US Dollar Derivatives [Member] | Cash Flow Hedging [Member]
Derivative [Line Items]
Derivative, Notional Amount	267,000	13,300	267,000	13,300		$ 5,600
Net Investment Hedging [Member] | 1.875 Percent Ten Year Senior Unsecured Notes [Member]
Derivative [Line Items]
Notional Amount of Nonderivative Instruments			497,100
Unrealized Gain (Loss) on Net Investment Hedge in AOCI	(22,300)	(1,700)	(1,300)	3,100
Net Investment Hedging [Member] | 0.6 Percent Senior Unsecured Notes due in April 2021 [Member]
Derivative [Line Items]
Notional Amount of Nonderivative Instruments			199,900
Unrealized Gain (Loss) on Net Investment Hedge in AOCI	$ (9,900)	$ (4,500)	$ 1,900	$ 2,300
United States of America, Dollars | Cross-currency Swap [Member]
Derivative [Line Items]
Derivative, Fixed Interest Rate	5.00%		5.00%		5.00%
United States of America, Dollars | Net Investment Hedging [Member] | Cross-currency Swap [Member]
Derivative [Line Items]
Notional Amount of Nonderivative Instruments			$ 220,000
Fair Value of Cross-currency Swap	$ 3,100		$ 3,100
Euro Member Countries, Euro | Cross-currency Swap [Member]
Derivative [Line Items]
Derivative, Fixed Interest Rate	2.47%		2.47%		2.47%
Euro Member Countries, Euro | Net Investment Hedging [Member] | Cross-currency Swap [Member]
Derivative [Line Items]
Notional Amount of Nonderivative Instruments			$ 197,400