Consolidated Statements of Income - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	May 28, 2022	May 29, 2021	May 30, 2020
Consolidated Statements of Income [Abstract]
Net sales	$ 1,777,159	$ 1,348,987	$ 1,351,609
Cost of sales	1,440,100	1,188,326	1,172,021
Gross profit	337,059	160,661	179,588
Selling, general and administrative	198,631	183,943	178,237
(Gain) loss on disposal of fixed assets	(5,109)	2,982	82
Operating income (loss)	143,537	(26,264)	1,269
Other income (expense):
Interest expense	(403)	(213)	(498)
Interest income	988	2,828	4,962
Patronage dividends	10,130	9,004	10,096
Equity in income of unconsolidated entities	1,943	622	534
Other, net	9,820	4,074	3,696
Total other income	22,478	16,315	18,790
Income (loss) before income taxes	166,015	(9,949)	20,059
Income tax expense (benefit)	33,574	(12,009)	1,731
Net income	132,441	2,060	18,328
Less: Net loss attributable to noncontrolling interest	(209)	0	(63)
Net income attributable to Cal-Maine Foods, Inc.	$ 132,650	$ 2,060	$ 18,391
Net income per common share:
Basic (in dollars per share)	$ 2.73	$ 0.04	$ 0.38
Diluted (in dollars per share)	$ 2.72	$ 0.04	$ 0.38
Weighted average shares outstanding:
Basic (in shares)	48,581	48,522	48,467
Diluted (in shares)	48,734	48,656	48,584