Consolidated Statements of Comprehensive Income (Loss) - USD ($) $ in Thousands	12 Months Ended
	Jun. 03, 2017	May 28, 2016	May 30, 2015
Statement of Comprehensive Income [Abstract]
Net income (loss), including noncontrolling interests	$ (74,427)	$ 318,047	$ 162,281
Other comprehensive income, before tax:
Unrealized holding gain (loss) on available-for-sale securities, net of reclassification adjustments	177	(25)	(143)
Increase in accumulated postretirement benefits obligation, net of reclassification adjustments	(334)	(118)	(741)
Other comprehensive loss, before tax	(157)	(143)	(884)
Income tax benefit related to items of other comprehensive income (loss)	(77)	(73)	(345)
Other comprehensive loss, net of tax	(80)	(70)	(539)
Comprehensive income (loss)	(74,507)	317,977	161,742
Less: comprehensive income (loss) attributable to the noncontrolling interest	(149)	2,006	1,027
Comprehensive income (loss) attributable to Cal-Maine Foods, Inc.	$ (74,358)	$ 315,971	$ 160,715