v3.26.3
Condensed Consolidated Statements of Stockholders' Equity - USD ($)
$ in Millions
Total
Common Stock
Additional Paid-in Capital
Retained Earnings
Accumulated Other Comprehensive (Loss) Income
Balance at beginning of period (in shares) at May. 31, 2025   67,804,913      
Balance at beginning of period at May. 31, 2025 $ 1,275.8 $ 13.6 $ 679.1 $ 665.1 $ (82.0)
Increase (Decrease) in Stockholders' Equity [Roll Forward]          
Net earnings attributable to MillerKnoll, Inc. 20.2     20.2  
Other comprehensive income (loss), net of tax 12.7       12.7
Stock-based compensation expense 9.3   9.3    
Exercise of stock options (in shares)   8,445      
Exercise of stock options 0.1   0.1    
Restricted and performance stock units released (in shares)   1,030,034      
Restricted and performance stock units released 0.3 $ 0.2 0.1    
Employee stock purchase plan issuances (in shares)   38,231      
Employee stock purchase plan issuances 0.7   0.7    
Repurchase and retirement of common stock and common stock withheld for tax withholdings (in shares)   (377,995)      
Repurchase and retirement of common stock and common stock withheld for tax withholdings (7.2) $ (0.1) (7.1)    
Dividends declared (13.1)     (13.1)  
Other 0.7     0.7  
Balance at end of period (in shares) at Aug. 30, 2025   68,503,628      
Balance at end of period at Aug. 30, 2025 $ 1,299.5 $ 13.7 682.2 672.9 (69.3)
Balance at beginning of period (in shares) at May. 30, 2026 68,180,011 68,180,011      
Balance at beginning of period at May. 30, 2026 $ 1,342.6 $ 13.6 694.3 704.0 (69.3)
Increase (Decrease) in Stockholders' Equity [Roll Forward]          
Net earnings attributable to MillerKnoll, Inc. 26.6        
Other comprehensive income (loss), net of tax (3.4)       (3.4)
Stock-based compensation expense 8.1   8.1    
Exercise of stock options (in shares)   192,838      
Exercise of stock options 3.9   3.9    
Restricted and performance stock units released (in shares)   828,767      
Restricted and performance stock units released 0.3 $ 0.2 0.1    
Employee stock purchase plan issuances (in shares)   31,866      
Employee stock purchase plan issuances 0.5   0.5    
Repurchase and retirement of common stock and common stock withheld for tax withholdings (in shares)   (453,975)      
Repurchase and retirement of common stock and common stock withheld for tax withholdings (9.5) $ (0.1) (9.4)    
Dividends declared (13.1)     (13.1)  
Other $ 0.2     0.2  
Balance at end of period (in shares) at Aug. 29, 2026 68,779,507 68,779,507      
Balance at end of period at Aug. 29, 2026 $ 1,356.2 $ 13.7 $ 697.5 $ 717.7 $ (72.7)