Consolidated Statements Of Income - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	May. 30, 2015	May. 31, 2014	Jun. 01, 2013
Consolidated Statements Of Income [Abstract]
Net sales	$ 1,576,128	$ 1,440,907	$ 1,288,104
Cost of sales	1,180,407	1,138,143	1,073,555
Gross profit	395,721	302,764	214,549
Selling, general and administrative	160,386	156,712	126,956
Legal settlement expense (see Note 14)			28,000
Operating income	235,335	146,052	59,593
Other income (expense):
Interest expense	(2,313)	(3,755)	(4,488)
Interest income	1,798	1,099	582
Patronage dividends	6,893	6,139	14,300
Equity in income of affiliates	2,657	3,512	3,480
Other, net	2,179	8,795	2,101
Total other income	11,214	15,790	15,975
Income before income taxes and noncontrolling interest	246,549	161,842	75,568
Income tax expense	84,268	52,035	24,807
Net income including noncontrolling interest	162,281	109,807	50,761
Less: Net income attributable to noncontrolling interest	1,027	600	338
Net income attributable to Cal-Maine Foods, Inc.	$ 161,254	$ 109,207	$ 50,423
Net income per share:
Basic	$ 3.35	$ 2.27	$ 1.05
Diluted	$ 3.33	$ 2.26	$ 1.05
Weighted average shares outstanding:
Basic	48,136	48,095	47,967
Diluted	48,437	48,297	48,088