Employee Benefit Plans (Narrative) (Details) - USD ($) $ in Thousands	12 Months Ended
	May. 30, 2015	May. 31, 2014	Jun. 01, 2013
Defined Benefit Plan Disclosure [Line Items]
Medical claim, maximum per occurrence	$ 225
Medical plan expense	9,600	$ 9,800	$ 7,400
Liability recorded for incurred but not reported claims	700	700
Deferred compensation expense	470	425	786
Payments made under plan	97	50	50
Liability related to deferred compensation agreements	1,600	1,700
Postretirement expense liability	1,500	683
2006 Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Awards issued under deferred compensation plan	241	202	$ 156
Payments made under plan	116	0
Liability related to deferred compensation agreements	$ 1,700	$ 1,500
KSOP [Member]
Defined Benefit Plan Disclosure [Line Items]
Company matching contribution percentage	3.00%	3.00%	3.00%
Company cash contribution	$ 2,800	$ 3,000	$ 1,800