Condensed Consolidated Statements Of Income - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Nov. 28, 2015	Nov. 29, 2014	Nov. 28, 2015	Nov. 29, 2014
Condensed Consolidated Statements Of Income [Abstract]
Net sales	$ 545,975	$ 378,617	$ 1,155,870	$ 735,561
Cost of sales	334,378	285,908	681,202	561,751
Gross profit	211,597	92,709	474,668	173,810
Selling, general and administrative expense	45,438	37,112	88,401	77,050
Operating income	166,159	55,597	386,267	96,760
Other income (expense):
Interest income (expense), net	616	(477)	643	(1,011)
Royalty income	298	1,452	905	2,024
Equity in income of affiliates	1,302	335	2,031	645
Other, net	(366)	(398)	(1,180)	877
Total other income	1,850	912	2,399	2,535
Income before income taxes and noncontrolling interest	168,009	56,509	388,666	99,295
Income tax expense	58,099	19,648	134,666	34,249
Net income before noncontrolling interest	109,910	36,861	254,000	65,046
Less: Net income attributable to noncontrolling interest	680	258	1,747	788
Net income attributable to Cal-Maine Foods, Inc.	$ 109,230	$ 36,603	$ 252,253	$ 64,258
Net income per common share attributable to Cal-Maine Foods, Inc.:
Basic	$ 2.27	$ 0.76	$ 5.24	$ 1.34
Diluted	2.26	0.76	5.22	1.33
Dividends per common share	$ 0.751	$ 0.252	$ 1.734	$ 0.443
Weighted average shares outstanding:
Basic	48,164	48,136	48,164	48,133
Diluted	48,361	48,404	48,354	48,400