Revenue (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 29, 2018	Dec. 30, 2017	Dec. 31, 2016
Disaggregation Of Revenue [Line Items]
Segment revenues from external customers	$ 1,260,852	$ 1,279,593	$ 1,346,731
Global Ingredients [Member]
Disaggregation Of Revenue [Line Items]
Segment revenues from external customers	559,712	536,928	558,798
Global Ingredients [Member] | Internationally-sourced organic ingredients [Member]
Disaggregation Of Revenue [Line Items]
Segment revenues from external customers	403,988	367,209	366,243
Global Ingredients [Member] | North American-sourced grains and seeds [Member]
Disaggregation Of Revenue [Line Items]
Segment revenues from external customers	155,724	169,719	192,555
Consumer Products [Member]
Disaggregation Of Revenue [Line Items]
Segment revenues from external customers	701,140	742,665	787,933
Consumer Products [Member] | Beverage products [Member]
Disaggregation Of Revenue [Line Items]
Segment revenues from external customers	332,568	308,810	312,741
Consumer Products [Member] | Frozen fruit products [Member]
Disaggregation Of Revenue [Line Items]
Segment revenues from external customers	322,247	345,372	382,818
Consumer Products [Member] | Snack products [Member]
Disaggregation Of Revenue [Line Items]
Segment revenues from external customers	$ 46,325	$ 88,483	$ 92,374