Goodwill (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 28, 2019	Dec. 29, 2018	Dec. 30, 2017
Goodwill [Roll Forward]
Goodwill Opening	$ 27,959	$ 109,533
Goodwill impairment (see note 11)		(81,222)	$ (115,000)
Acquisition of Sanmark (see note 3)	2,174
Sale of soy and corn business (see note 4)	(1,526)
Foreign exchange	(185)	(352)
Goodwill Ending	28,422	27,959	109,533
Global Ingredients [Member]
Goodwill [Roll Forward]
Goodwill Opening	23,961	24,313
Goodwill impairment (see note 11)		0
Acquisition of Sanmark (see note 3)	2,174
Sale of soy and corn business (see note 4)	(1,526)
Foreign exchange	(185)	(352)
Goodwill Ending	24,424	23,961	24,313
Plant-Based Foods and Beverages [Member]
Goodwill [Roll Forward]
Goodwill Opening	0	0
Goodwill impairment (see note 11)		0
Acquisition of Sanmark (see note 3)	0
Sale of soy and corn business (see note 4)	0
Foreign exchange	0	0
Goodwill Ending	0	0	0
Fruit Based Foods and Beverages [Member]
Goodwill [Roll Forward]
Goodwill Opening	3,998	85,220
Goodwill impairment (see note 11)		(81,222)
Acquisition of Sanmark (see note 3)	0
Sale of soy and corn business (see note 4)	0
Foreign exchange	0	0
Goodwill Ending	$ 3,998	$ 3,998	$ 85,220

Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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