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Restructuring and Related Activities (Summary of Restructuring-Related Costs by Segment) (Details) - 2024 Restructuring Plan - USD ($) $ in Millions | 12 Months Ended | 24 Months Ended
--- | --- | ---
Dec. 31, 2025 | Dec. 31, 2024 | Dec. 31, 2025
Restructuring Cost and Reserve [Line Items] |  |  |
Restructuring and related costs | $ 29.7 | $ 47.8 | $ 77.5
Other restructuring |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Restructuring and related costs | 10.7 | 43.6 | $ 54.3
Other restructuring | Bedding Products |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Restructuring and related costs | 5.6 | 33.9 |
Other restructuring | Specialized Products |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Restructuring and related costs | 3.5 | 7.4 |
Other restructuring | Furniture, Flooring & Textile Products |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Restructuring and related costs | $ 1.6 | $ 2.3 |

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