Revenue (Disaggregation Of Revenue) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 28, 2019	Dec. 29, 2018	Dec. 30, 2017
Disaggregation of Revenue [Line Items]
Segment revenues from external customers	$ 1,190,022	$ 1,260,852	$ 1,279,593
Global Ingredients [Member]
Disaggregation of Revenue [Line Items]
Segment revenues from external customers	478,772	581,307	556,166
Global Ingredients [Member] | Organic and non-GMO ingredients [Member]
Disaggregation of Revenue [Line Items]
Segment revenues from external customers	394,880	403,988	367,209
Global Ingredients [Member] | Premium juice [Member]
Disaggregation of Revenue [Line Items]
Segment revenues from external customers	73,546	72,892	76,621
Global Ingredients [Member] | Soy And Corn [Member]
Disaggregation of Revenue [Line Items]
Segment revenues from external customers	10,346	104,427	112,336
Plant-Based Foods and Beverages [Member]
Disaggregation of Revenue [Line Items]
Segment revenues from external customers	361,398	314,076	342,714
Plant-Based Foods and Beverages [Member] | Beverages and broths [Member]
Disaggregation of Revenue [Line Items]
Segment revenues from external customers	286,381	244,888	217,285
Plant-Based Foods and Beverages [Member] | Plant-based ingredients [Member]
Disaggregation of Revenue [Line Items]
Segment revenues from external customers	22,944	14,788	14,904
Plant-Based Foods and Beverages [Member] | Sunflower and roasted snacks [Member]
Disaggregation of Revenue [Line Items]
Segment revenues from external customers	52,073	51,297	57,383
Plant-Based Foods and Beverages [Member] | Flexible Resealable Pouch And Nutrition Bar Products [Member]
Disaggregation of Revenue [Line Items]
Segment revenues from external customers	0	3,103	53,142
Fruit Based Foods and Beverages [Member]
Disaggregation of Revenue [Line Items]
Segment revenues from external customers	349,852	365,469	380,713
Fruit Based Foods and Beverages [Member] | Frozen Fruit [Member]
Disaggregation of Revenue [Line Items]
Segment revenues from external customers	258,298	271,417	283,657
Fruit Based Foods and Beverages [Member] | Fruit-based ingredients [Member]
Disaggregation of Revenue [Line Items]
Segment revenues from external customers	47,762	50,830	61,715
Fruit Based Foods and Beverages [Member] | Fruit snacks [Member]
Disaggregation of Revenue [Line Items]
Segment revenues from external customers	$ 43,792	$ 43,222	$ 35,341