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Redeemable Noncontrolling Interests (Details) - USD ($)
$ in Millions
6 Months Ended
Dec. 03, 2016
Nov. 28, 2015
Redeemable Noncontrolling Interest [Line Items]    
Redeemable Noncontrolling Interests, Beginning $ 27.0  
Redeemable Noncontrolling Interests, Ending 25.4  
Herman Miller Consumer Holdings    
Redeemable Noncontrolling Interest [Line Items]    
Redeemable Noncontrolling Interests, Beginning 27.0 $ 30.4
Purchase of redeemable noncontrolling interests (1.5) 0.0
Net income attributable to redeemable noncontrolling interests 0.1 0.3
Redemption value adjustment (0.3) 0.4
Other adjustments 0.1 0.1
Redeemable Noncontrolling Interests, Ending $ 25.4 $ 31.2