Value Creation Plan (Disclosure of costs incurred and charged to expense in Value Creation Plan) (Details) - USD ($) $ in Thousands	12 Months Ended			39 Months Ended
	Dec. 28, 2019	Dec. 29, 2018	Dec. 30, 2017	Dec. 28, 2019
Restructuring Cost and Reserve [Line Items]
Cost of Goods and Services Sold	$ 1,074,769	$ 1,137,382	$ 1,134,506
Selling, general and administrative expenses	108,340	108,248	127,507
Value Creation Plan [Member]
Restructuring Cost and Reserve [Line Items]
Cost of Goods and Services Sold	0	100	3,189
Selling, general and administrative expenses	3,556	613	22,894
Other Expenses	6,093	1,661	23,829
Restructuring Charges	$ 9,649	$ 2,374	$ 49,912	$ 80,261