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Acquisitions and Divestitures - Finite-Lived and Indefinite-Lived Intangible Assets Acquired as Part of Business Combination (Details) - USD ($)
$ in Millions
10 Months Ended 12 Months Ended
May. 30, 2015
May. 30, 2015
May. 31, 2014
Business Acquisition      
Indefinite-lived intangible assets acquired during period   $ 55.1 $ 0.0
Customer Relationships      
Business Acquisition      
Useful Life   13 years  
Acquisition Of Design Within Reach (DWR) [Member]      
Business Acquisition      
Total Intangibles acquired $ 68.5 $ 68.5  
Acquisition Of Design Within Reach (DWR) [Member] | Exclusive Distribution Agreements [Member]      
Business Acquisition      
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles $ 0.2 0.2  
Useful Life 1 year 6 months    
Acquisition Of Design Within Reach (DWR) [Member] | Customer Relationships      
Business Acquisition      
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles $ 12.0 12.0  
Acquisition Of Design Within Reach (DWR) [Member] | Customer Relationships | Minimum      
Business Acquisition      
Useful Life 10 years    
Acquisition Of Design Within Reach (DWR) [Member] | Customer Relationships | Maximum      
Business Acquisition      
Useful Life 16 years    
Acquisition Of Design Within Reach (DWR) [Member] | Product Development Designs [Member]      
Business Acquisition      
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles $ 1.2 1.2  
Useful Life 7 years    
Acquisition Of Design Within Reach (DWR) [Member] | Trademarks and Trade Names [Member]      
Business Acquisition      
Trade Names and Trademarks $ 55.1 $ 55.1