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Restructuring and Integration Expense - Schedule of Integration Expenses and Restructuring Costs by Segment (Details) - USD ($)
 3 Months Ended
Aug. 30, 2025
Aug. 31, 2024
Restructuring Cost and Reserve [Line Items]    
Restructuring expense $ 500,000 $ 0
Knoll Integration    
Restructuring Cost and Reserve [Line Items]    
Restructuring expense 0 28,300,000
Operating Segments | North America Contract    
Restructuring Cost and Reserve [Line Items]    
Restructuring expense 500,000 0
Operating Segments | International Contract    
Restructuring Cost and Reserve [Line Items]    
Restructuring expense 0 0
Operating Segments | Global Retail    
Restructuring Cost and Reserve [Line Items]    
Restructuring expense 0 0
Operating Segments | Knoll Integration | North America Contract    
Restructuring Cost and Reserve [Line Items]    
Restructuring expense 0 24,800,000
Operating Segments | Knoll Integration | International Contract    
Restructuring Cost and Reserve [Line Items]    
Restructuring expense 0 3,200,000
Operating Segments | Knoll Integration | Global Retail    
Restructuring Cost and Reserve [Line Items]    
Restructuring expense 0 300,000
Corporate | Knoll Integration    
Restructuring Cost and Reserve [Line Items]    
Restructuring expense $ 0 $ 0