Net Income per Common Share (Computation of Basic and Diluted Net Income Per Share) (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	12 Months Ended
	Jun. 03, 2023	May 28, 2022	May 29, 2021
Net Income per Common Share [Abstract]
Net income	$ 756,732	$ 132,441	$ 2,060
Less: Net loss attributable to noncontrolling interest	(1,292)	(209)	0
Net income attributable to Cal-Maine Foods, Inc.	$ 758,024	$ 132,650	$ 2,060
Denominator
Weighted-average common shares outstanding, basic (in shares)	48,648	48,581	48,522
Effect of dilutive restricted shares (in shares)	186	153	134
Weighted-average common shares outstanding, diluted (in shares)	48,834	48,734	48,656
Net income per common share attributable to Cal-Maine Foods, Inc.
Basic (in dollars per share)	$ 15.58	$ 2.73	$ 0.04
Diluted (in dollars per share)	$ 15.52	$ 2.72	$ 0.04