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Fair Value (Details)
£ in Millions
 3 Months Ended 12 Months Ended
Dec. 02, 2019
Jun. 12, 2017
USD ($)
Sep. 13, 2016
USD ($)
Sep. 01, 2018
USD ($)
May 29, 2021
USD ($)
May 30, 2020
USD ($)
Jun. 01, 2019
USD ($)
Jun. 02, 2018
USD ($)
May 30, 2020
GBP (£)
Jun. 01, 2019
GBP (£)
Jun. 07, 2018
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis                      
Derivative Liability, Notional Amount           $ 52,600,000 $ 38,100,000        
Derivative Asset, Notional Amount | £                 £ 27.5 £ 19.2  
Other Comprehensive Income (Loss), before Reclassifications, Net of Tax           (17,200,000) (12,800,000) $ 7,500,000      
Gain (Loss) on Cash Flow Hedge Ineffectiveness, Net           0 0 0      
Equity Securities without Readily Determinable Fair Value, Upward Price Adjustment, Annual Amount       $ 2,100,000   0 2,100,000 0      
Equity Securities without Readily Determinable Fair Value, Amount           3,600,000          
Redeemable noncontrolling interests           50,400,000 20,600,000        
Goodwill Impairment Charges           125,500,000          
Indefinite-lived Intangible Assets Impairment Charges           53,300,000          
Payments to Noncontrolling Interests           $ 20,300,000 10,100,000 1,000,000.0      
Contingent Equity Purchase           33.00%          
Forecast                      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis                      
Derivative Instruments, Gain (Loss) Reclassification from Accumulated OCI to Income, Estimated Gross Amount to be Transferred         $ (4,300,000)            
Derivative Instruments, Gain (Loss) Reclassification from Accumulated OCI to Income, Estimated Net Amount to be Transferred         $ (3,200,000)            
Other, net | Accumulated Net Gain (Loss) from Cash Flow Hedges Attributable to Parent                      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis                      
Reclassification from Accumulated Other Comprehensive Income, Current Period, before Tax           $ (800,000) 500,000 300,000      
Herman Miller Consumer Holdings                      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis                      
Redeemable noncontrolling interests           0 20,600,000 $ 30,500,000      
Payments to Acquire Additional Interest in Subsidiaries           20,400,000          
Purchase of redeemable noncontrolling interests           $ 20,400,000 $ 10,100,000        
Herman Miller Consumer Holdings                      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis                      
Noncontrolling Interest, Ownership Percentage by Noncontrolling Owners             5.00%     5.00%  
Foreign Exchange Forward | Not Designated as Hedging Instrument                      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis                      
Derivative, Term of Contract           30 days          
Interest rate swap agreement                      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis                      
Derivative Asset, Notional Amount   $ 75,000,000.0 $ 150,000,000.0                
Debt Conversion, Converted Instrument, Rate   238.70% 1.949%                
Interest rate swap agreement | Quoted Prices with Other Observable Inputs (Level 2) | Fair Value, Recurring [Member]                      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis                      
Interest Rate Swap Agreement           $ 25,000,000.0 $ 1,200,000        
Interest rate swap agreement | Other Liabilities | Quoted Prices with Other Observable Inputs (Level 2) | Fair Value, Recurring [Member]                      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis                      
Interest Rate Swap Agreement             $ 2,200,000        
Relief from Royalty Approach | Minimum | Discount Rate                      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis                      
Indefinite-lived Intangibles Fair Value Inputs           12.75%          
Relief from Royalty Approach | Minimum | Royalty Rate                      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis                      
Indefinite-lived Intangibles Fair Value Inputs           1.00%          
Relief from Royalty Approach | Maximum | Discount Rate                      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis                      
Indefinite-lived Intangibles Fair Value Inputs           17.25%          
Relief from Royalty Approach | Maximum | Royalty Rate                      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis                      
Indefinite-lived Intangibles Fair Value Inputs           3.00%          
HAY A/S                      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis                      
Business Acquisition, Percentage of Voting Interests Acquired 34.00%                   33.00%
Subsidiary or Equity Method Investee, Cumulative Percentage Ownership after All Transactions 67.00%