Supplemental Cash Flow Information details - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 28, 2019	Dec. 29, 2018
Supplemental Cash Flow Elements [Abstract]
Interest Paid, Capitalized	$ 14,855	$ 17,190	$ 12,710
Interest paid, including amounts capitalized	36,302	25,639	15,707
Income taxes paid, net of refunds	149,059	100,004	(15,560)
Right-of-Use Asset Obtained in Exchange for Operating Lease Liability	26,352	29,542	0
Capital Expenditures Incurred but Not yet Paid	$ 22,218	$ 12,673	$ 11,989