Condensed Consolidated Statements of Comprehensive Income (Loss) (Unaudited) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Mar. 03, 2018	Feb. 25, 2017	Mar. 03, 2018	Feb. 25, 2017
Statement of Comprehensive Income [Abstract]
Net income (loss), including noncontrolling interests	$ 96,358	$ 4,131	$ 54,100	$ (49,816)
Other comprehensive income (loss), before tax:
Unrealized holding gain (loss) on available-for-sale securities, net of reclassification adjustments	(547)	233	(1,004)	199
Income tax benefit (expense) related to items of other comprehensive loss	155	(89)	340	(75)
Other comprehensive income (loss), net of tax	(392)	144	(664)	124
Comprehensive income (loss)	95,966	4,275	53,436	(49,692)
Less: comprehensive income (loss) attributable to the noncontrolling interest	64	(8)	(65)	(9)
Comprehensive income (loss) attributable to Cal-Maine Foods, Inc.	$ 95,902	$ 4,283	$ 53,501	$ (49,683)