Revenue Disaggregation of Revenue (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Oct. 01, 2022	Oct. 02, 2021	Oct. 01, 2022	Oct. 02, 2021
Disaggregation of Revenue [Line Items]
Net sales	$ 1,747,599	$ 1,185,916	$ 4,764,121	$ 3,431,301
Feed Ingredients
Disaggregation of Revenue [Line Items]
Net sales	1,273,142	769,626	3,322,927	2,193,002
Food Ingredients
Disaggregation of Revenue [Line Items]
Net sales	347,902	311,856	1,071,897	926,952
Fuel Ingredients
Disaggregation of Revenue [Line Items]
Net sales	126,555	104,434	369,297	311,347
North America
Disaggregation of Revenue [Line Items]
Net sales	1,188,993	714,111	3,148,356	2,067,118
North America | Feed Ingredients
Disaggregation of Revenue [Line Items]
Net sales	1,098,417	647,114	2,882,499	1,856,642
North America | Food Ingredients
Disaggregation of Revenue [Line Items]
Net sales	90,576	66,995	265,857	207,100
North America | Fuel Ingredients
Disaggregation of Revenue [Line Items]
Net sales	0	2	0	3,376
Europe
Disaggregation of Revenue [Line Items]
Net sales	410,839	385,233	1,269,166	1,111,831
Europe | Feed Ingredients
Disaggregation of Revenue [Line Items]
Net sales	114,646	114,762	361,356	316,804
Europe | Food Ingredients
Disaggregation of Revenue [Line Items]
Net sales	169,638	166,039	538,513	487,056
Europe | Fuel Ingredients
Disaggregation of Revenue [Line Items]
Net sales	126,555	104,432	369,297	307,971
China
Disaggregation of Revenue [Line Items]
Net sales	71,508	60,766	215,709	176,474
China | Feed Ingredients
Disaggregation of Revenue [Line Items]
Net sales	6,291	4,910	19,859	10,594
China | Food Ingredients
Disaggregation of Revenue [Line Items]
Net sales	65,217	55,856	195,850	165,880
China | Fuel Ingredients
Disaggregation of Revenue [Line Items]
Net sales	0	0	0	0
South America
Disaggregation of Revenue [Line Items]
Net sales	59,468	8,943	80,832	24,987
South America | Feed Ingredients
Disaggregation of Revenue [Line Items]
Net sales	50,679	0	50,679	0
South America | Food Ingredients
Disaggregation of Revenue [Line Items]
Net sales	8,789	8,943	30,153	24,987
South America | Fuel Ingredients
Disaggregation of Revenue [Line Items]
Net sales	0	0	0	0
Other
Disaggregation of Revenue [Line Items]
Net sales	16,791	16,863	50,058	50,891
Other | Feed Ingredients
Disaggregation of Revenue [Line Items]
Net sales	3,109	2,840	8,534	8,962
Other | Food Ingredients
Disaggregation of Revenue [Line Items]
Net sales	13,682	14,023	41,524	41,929
Other | Fuel Ingredients
Disaggregation of Revenue [Line Items]
Net sales	0	0	0	0
Fats
Disaggregation of Revenue [Line Items]
Net sales	590,910	356,508	1,563,660	960,617
Fats | Feed Ingredients
Disaggregation of Revenue [Line Items]
Net sales	543,333	307,929	1,410,641	829,494
Fats | Food Ingredients
Disaggregation of Revenue [Line Items]
Net sales	47,577	48,579	153,019	131,123
Fats | Fuel Ingredients
Disaggregation of Revenue [Line Items]
Net sales	0	0	0	0
Used cooking oil
Disaggregation of Revenue [Line Items]
Net sales	163,523	69,859	411,156	207,325
Used cooking oil | Feed Ingredients
Disaggregation of Revenue [Line Items]
Net sales	163,523	69,859	411,156	207,325
Used cooking oil | Food Ingredients
Disaggregation of Revenue [Line Items]
Net sales	0	0	0	0
Used cooking oil | Fuel Ingredients
Disaggregation of Revenue [Line Items]
Net sales	0	0	0	0
Proteins
Disaggregation of Revenue [Line Items]
Net sales	413,759	257,991	1,035,071	771,889
Proteins | Feed Ingredients
Disaggregation of Revenue [Line Items]
Net sales	413,759	257,991	1,035,071	771,889
Proteins | Food Ingredients
Disaggregation of Revenue [Line Items]
Net sales	0	0	0	0
Proteins | Fuel Ingredients
Disaggregation of Revenue [Line Items]
Net sales	0	0	0	0
Bakery
Disaggregation of Revenue [Line Items]
Net sales	84,835	80,543	252,939	222,850
Bakery | Feed Ingredients
Disaggregation of Revenue [Line Items]
Net sales	84,835	80,543	252,939	222,850
Bakery | Food Ingredients
Disaggregation of Revenue [Line Items]
Net sales	0	0	0	0
Bakery | Fuel Ingredients
Disaggregation of Revenue [Line Items]
Net sales	0	0	0	0
Other rendering
Disaggregation of Revenue [Line Items]
Net sales	51,117	43,741	172,784	132,150
Other rendering | Feed Ingredients
Disaggregation of Revenue [Line Items]
Net sales	51,117	43,741	172,784	132,150
Other rendering | Food Ingredients
Disaggregation of Revenue [Line Items]
Net sales	0	0	0	0
Other rendering | Fuel Ingredients
Disaggregation of Revenue [Line Items]
Net sales	0	0	0	0
Food ingredients
Disaggregation of Revenue [Line Items]
Net sales	269,928	231,645	820,879	700,809
Food ingredients | Feed Ingredients
Disaggregation of Revenue [Line Items]
Net sales	0	0	0	0
Food ingredients | Food Ingredients
Disaggregation of Revenue [Line Items]
Net sales	269,928	231,645	820,879	700,809
Food ingredients | Fuel Ingredients
Disaggregation of Revenue [Line Items]
Net sales	0	0	0	0
Bioenergy
Disaggregation of Revenue [Line Items]
Net sales	126,555	104,432	369,297	307,971
Bioenergy | Feed Ingredients
Disaggregation of Revenue [Line Items]
Net sales	0	0	0	0
Bioenergy | Food Ingredients
Disaggregation of Revenue [Line Items]
Net sales	0	0	0	0
Bioenergy | Fuel Ingredients
Disaggregation of Revenue [Line Items]
Net sales	126,555	104,432	369,297	307,971
Biofuels
Disaggregation of Revenue [Line Items]
Net sales		2		3,376
Biofuels | Feed Ingredients
Disaggregation of Revenue [Line Items]
Net sales		0		0
Biofuels | Food Ingredients
Disaggregation of Revenue [Line Items]
Net sales		0		0
Biofuels | Fuel Ingredients
Disaggregation of Revenue [Line Items]
Net sales		2		3,376
Other
Disaggregation of Revenue [Line Items]
Net sales	46,972	41,195	138,335	124,314
Other | Feed Ingredients
Disaggregation of Revenue [Line Items]
Net sales	16,575	9,563	40,336	29,294
Other | Food Ingredients
Disaggregation of Revenue [Line Items]
Net sales	30,397	31,632	97,999	95,020
Other | Fuel Ingredients
Disaggregation of Revenue [Line Items]
Net sales	$ 0	$ 0	$ 0	$ 0