Goodwill and Other Intangible Assets (Schedule of Changes in Carrying Amounts of Goodwill) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 28, 2019	Dec. 29, 2018
Goodwill [Roll Forward]
Beginning Balance	$ 847,544	$ 853,005
Goodwill, Acquired During Period	37,071
Foreign currency translation adjustment and other	(1,457)	(5,461)
Ending Balance	883,158	847,544
Domestic Segment [Member]
Goodwill [Roll Forward]
Beginning Balance	782,664	782,664
Goodwill, Acquired During Period	37,071
Foreign currency translation adjustment and other	0	0
Ending Balance	819,735	782,664
International Segment [Member]
Goodwill [Roll Forward]
Beginning Balance	64,880	70,341
Goodwill, Acquired During Period	0
Foreign currency translation adjustment and other	(1,457)	(5,461)
Ending Balance	$ 63,423	$ 64,880