CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Parenthetical) - USD ($) $ in Thousands	12 Months Ended
	May. 28, 2015	May. 29, 2014	May. 30, 2013
Other Comprehensive Income (Loss), Available-for-sale Securities, Tax, Total	$ 0	$ 1	$ 1
Other Comprehensive Income (Loss), Finalization of Pension and Other Postretirement Benefit Plan Valuation, Tax	(570)	(668)	49
Other Comprehensive (Income) Loss, Amortization Adjustment from AOCI, Pension and Other Postretirement Benefit Plans, for Net Prior Service Cost (Credit), Tax	127	114	119
Other Comprehensive Amortization Of Loss Derivatives Qualifying As Hedges Tax	0	0	41
Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, Tax	110	65	4
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI on Derivatives, Tax	$ 77	$ 76	$ 16