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Supplemental Disclosure Of Cash Flow Information (Schedule Of Additional Information Regarding Cash Flows) (Details) - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	May 25, 2019	May 26, 2018	May 27, 2017
Business Acquisition [Line Items]
Income taxes paid	$ 14,229	$ 10,601	$ 16,756
Interest paid	2,440	1,769	628
Capitalized leasehold improvements paid directly by landlord	2,312	$ 65	1,026
Taskforce [Member]
Business Acquisition [Line Items]
Issuance of common stock		2,602
Liability for contingent consideration	2,195	$ 4,289
Accretive [Member]
Business Acquisition [Line Items]
Issuance of common stock		11,754
Dividends declared, not paid	$ 4,105	$ 3,791	$ 3,253

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