Income Taxes (Schedule of Components of Income Tax Expense (Benefit)) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 28, 2019	Dec. 29, 2018
Current:
Federal	$ 131,741	$ 45,575	$ 89,551
State	30,565	13,429	24,804
Foreign	47,577	14,929	22,009
Total current expense	209,883	73,933	136,364
Deferred:
Federal	(4,469)	30,353	31,129
State	(96)	11,747	8,144
Foreign	6,067	9,025	(4,845)
Total deferred expense (benefit)	1,502	51,125	34,428
Total income tax expense	$ 211,385	$ 125,058	$ 170,792