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Restructuring and Impairment Activities(Details) - USD ($)
$ in Millions
12 Months Ended
May. 30, 2015
May. 31, 2014
Restructuring and Related Activities [Abstract]    
Impairment charges $ 10.8 $ 21.4
Restructuring expenses $ 1.9 1.1
Impairment of Long-Lived Assets Held-for-use   $ 4.0