Segment Information And Enterprise Reporting (Schedule Of Revenue From External Customers And Long-Lived Assets, By Geographical Areas) (Details) - USD ($) $ in Thousands		12 Months Ended
		May 30, 2020	May 25, 2019	May 26, 2018
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue		$ 703,353	$ 728,999	$ 654,129
Long-Lived Assets	[1]	292,075	232,036
UNITED STATES [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue		568,725	575,641	510,935
Long-Lived Assets	[1]	254,649	200,385
International [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue		134,628	153,358	$ 143,194
Long-Lived Assets	[1]	$ 37,426	$ 31,651

[1] Long-lived assets are comprised of goodwill, intangible assets, property and equipment, and ROU assets.