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Employee Benefit Plans (Details) - Foreign Pension Plan - USD ($)
$ in Millions
3 Months Ended
Aug. 29, 2015
Aug. 30, 2014
Defined Benefit Plan Disclosure    
Interest cost $ 1.0 $ 1.2
Expected return on plan assets (1.4) (1.5)
Net amortization loss 0.7 0.5
Net periodic benefit cost $ 0.3 $ 0.2