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Restructuring and Related Activities - Summary of Restructuring-Related Costs by Segment (Details) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2024
Jun. 30, 2024
Restructuring Cost and Reserve [Line Items]    
Total restructuring-related costs $ 11.2 $ 22.0
Net restructuring and restructuring-related    
Restructuring Cost and Reserve [Line Items]    
Total restructuring-related costs 10.9 19.4
Net restructuring and restructuring-related | Bedding Products    
Restructuring Cost and Reserve [Line Items]    
Total restructuring-related costs 9.6 16.6
Net restructuring and restructuring-related | Specialized Products    
Restructuring Cost and Reserve [Line Items]    
Total restructuring-related costs 1.3 1.3
Net restructuring and restructuring-related | Furniture, Flooring & Textile Products    
Restructuring Cost and Reserve [Line Items]    
Total restructuring-related costs $ 0.0 $ 1.5