Condensed Consolidated Statements Of Cash Flows (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Feb. 28, 2015	Mar. 01, 2014
Operating activities:
Net income including noncontrolling interests	$ 116,005	$ 78,101
Depreciation and amortization	30,201	27,318
Other adjustments, net	(9,852)	(34,562)
Net cash provided by operations	136,354	70,857
Investing activities:
Purchase of investments	(139,956)	(106,472)
Sales of investments	109,489	91,412
Investment in Southwest Specialty Eggs, LLC	(8,160)
Purchases of property, plant and equipment	(62,109)	(40,927)
Acquisitions of businesses, net of cash acquired		(11,548)
Payments received on notes receivable and from affiliates	1,409	4,379
Net proceeds from disposal of property, plant and equipment	2,031	631
Net cash used in investing activities	(97,296)	(62,525)
Financing activities:
Proceeds from issuance of common stock from treasury, net (including tax benefit on nonqualifying disposition of incentive stock options)	60	271
Distributions to noncontrolling interests	(941)
Principal payments on long-term debt	(7,726)	(7,884)
Payments of dividends	(31,938)	(10,316)
Net cash used in financing activities	(40,545)	(17,929)
Net change in cash and cash equivalents	(1,487)	(9,597)
Cash and cash equivalents at beginning of period	14,521	24,984
Cash and cash equivalents at end of period	$ 13,034	$ 15,387