Income Taxes (Details) - USD ($) $ in Thousands	May. 28, 2015	May. 29, 2014
Current deferred income tax assets:
Accrued employee benefits	$ 948	$ 832
Other	2,049	2,224
Net current deferred tax assets	2,997	3,056
Noncurrent deferred income tax (liabilities) assets:
Depreciation and amortization	(64,460)	(58,035)
Accrued employee benefits	15,612	14,206
Other	1,346	1,268
Net noncurrent deferred tax liabilities	$ (47,502)	$ (42,561)