Property, Plant and Equipment (Narrative) (Details) $ in Millions	3 Months Ended		12 Months Ended
	Feb. 28, 2015 property	Nov. 29, 2014 property	Jun. 03, 2017 USD ($)	May 28, 2016 USD ($)	May 30, 2015 USD ($)
Property, Plant and Equipment [Line Items]
Depreciation expense | $			$ 48.8	$ 41.4	$ 37.3
Florida
Property, Plant and Equipment [Line Items]
Number of pullet houses destroyed		2
Shady Dale Georgia
Property, Plant and Equipment [Line Items]
Number of pullet houses destroyed	2