v3.26.1
Acquisitions and Divestitures - Schedule of Total Fair Market Value of Consideration (Details)
shares in Millions, $ in Millions
Dec. 10, 2025
USD ($)
shares
Steelcase Inc | Non-vested restricted stock units  
Asset Acquisition [Line Items]  
Outstanding share-based compensation awards (in shares) 4.2
Steelcase Inc | Performance Shares  
Asset Acquisition [Line Items]  
Outstanding share-based compensation awards (in shares) 2.7
Steelcase Inc | Common Stock  
Asset Acquisition [Line Items]  
Shares of Steelcase common stock issued as of December 10, 2025 (in shares) 114.8
Shares of Steelcase common stock outstanding as of December 10, 2025 (in shares) 114.8
Steelcase Inc | Common Stock, Equivalent Shares  
Asset Acquisition [Line Items]  
Steelcase common stock equivalent shares as of December 10, 2025 (in shares) 6.9
Steelcase Inc | Common Stock And Equivalent Shares  
Asset Acquisition [Line Items]  
Shares of Steelcase common stock outstanding as of December 10, 2025 (in shares) 121.7
Steelcase Inc  
Asset Acquisition [Line Items]  
Payment to acquire building | $ $ 864.5
Total acquisition date fair value of purchase consideration | $ $ 1,922.3
Steelcase Inc | Non-vested restricted stock units  
Asset Acquisition [Line Items]  
Total number of shares for cash consideration (in shares) 0.9
Fair value of total number of shares for cash consideration | $ $ 26.9
Steelcase Inc | Performance Shares  
Asset Acquisition [Line Items]  
Total number of shares for cash consideration (in shares) 0.6
Fair value of total number of shares for cash consideration | $ $ 18.5
Steelcase Inc | Common Stock  
Asset Acquisition [Line Items]  
Total number of shares for cash consideration (in shares) 25.2
Common stock, fair value issued | $ $ 826.8
Fair value of total number of shares for cash consideration | $ 1,012.5
Steelcase Inc | Share-Based Awards For Services Provided  
Asset Acquisition [Line Items]  
Common stock, fair value issued | $ $ 37.6