Organization, Basis of Presentation, and Summary of Significant Accounting Policies - Disaggregation of Revenue (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Feb. 28, 2021	Feb. 23, 2020	Feb. 28, 2021	Feb. 23, 2020
Segment Reporting Information [Line Items]
Net sales	$ 137,782	$ 152,928	$ 404,328	$ 434,235
Curation Foods
Segment Reporting Information [Line Items]
Net sales	110,557	127,482	332,080	373,906
Curation Foods | Fresh packaged salads and vegetables
Segment Reporting Information [Line Items]
Net sales	94,739	110,884	283,341	325,628
Curation Foods | Avocado products
Segment Reporting Information [Line Items]
Net sales	15,378	14,517	47,107	44,738
Curation Foods | Technology
Segment Reporting Information [Line Items]
Net sales	440	2,081	1,632	3,540
Lifecore
Segment Reporting Information [Line Items]
Net sales	27,225	25,446	72,248	60,329
Lifecore | Contact development and manufacturing organization
Segment Reporting Information [Line Items]
Net sales	18,628	14,004	53,374	43,118
Lifecore | Fermentation
Segment Reporting Information [Line Items]
Net sales	$ 8,597	$ 11,442	$ 18,874	$ 17,211