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Goodwill (Details) $ in Thousands	6 Months Ended
	Jun. 29, 2019 USD ($)
Goodwill [Roll Forward]
Goodwill	$ 1,245,534
Accumulated impairment losses	(16,375)
Goodwill	1,229,159
Goodwill acquired during year	487
Foreign currency translation	3,840
Goodwill	1,249,861
Accumulated impairment losses	(16,375)
Goodwill	1,233,486
Feed Ingredients
Goodwill [Roll Forward]
Goodwill	791,966
Accumulated impairment losses	(15,914)
Goodwill	776,052
Goodwill acquired during year	396
Foreign currency translation	5,233
Goodwill	797,595
Accumulated impairment losses	(15,914)
Goodwill	781,681
Fuel Ingredients
Goodwill [Roll Forward]
Goodwill	117,867
Accumulated impairment losses	0
Goodwill	117,867
Goodwill acquired during year	0
Foreign currency translation	413
Goodwill	118,280
Accumulated impairment losses	0
Goodwill	118,280
Food Ingredients
Goodwill [Roll Forward]
Goodwill	335,701
Accumulated impairment losses	(461)
Goodwill	335,240
Goodwill acquired during year	91
Foreign currency translation	(1,806)
Goodwill	333,986
Accumulated impairment losses	(461)
Goodwill	$ 333,525

X

- Definition

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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Amount before 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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