Asset Impairment, Exit and Restructuring Costs	12 Months Ended
	Jan. 02, 2021
Restructuring and Related Activities [Abstract]
Asset Impairment, Exit and Restructuring Costs	RESTRUCTURING AND ASSET IMPAIRMENT CHARGESIn December 2020, due to unfavorable economics in the biodiesel industry, the Company made the decision to shut down processing operations at its biodiesel facilities located in the United States and Canada, and there are no current plans to resume biodiesel production at these facilities in the future. As of January 2, 2021, the Company has incurred restructuring and asset impairment charges of approximately $38.2 million, which includes asset impairment charges of approximately $37.8 million and other factory and operational restructuring charges of approximately $0.4 million. Employee termination costs were not incurred for the period ended January 2, 2021 due to all U.S. employees being transferred to other U.S. plants and the employees in Canada were not given their notifications until after January 2, 2021. The employee termination costs to be recorded in the first quarter of 2021 by Canada will not be significant.In the second quarter of fiscal 2018, management decided to permanently shut down the Company's Hurlingham, Argentina collagen plant. As of December 29, 2018, the Company incurred restructuring and asset impairment charges of approximately $15.0 million, which included employee termination charges of approximately $8.4 million, asset impairment charges of approximately $2.9 million and other factory and operational restructuring charges of approximately $3.7 million.