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Impairment Charges - Schedule of Impairment Charges (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Schedule Of Asset Impairment Charges [Line Items]
Goodwill impairment	$ 675.3		$ 675.3	$ 0.0
Other Long-Lived Assets Impairments	0.3		2.6
Total Impairments	675.6	$ 0.0	677.9	$ 0.0
Bedding Products
Schedule Of Asset Impairment Charges [Line Items]
Goodwill impairment	587.2		587.2
Other Long-Lived Assets Impairments	0.3		2.6
Total Impairments	587.5		589.8
Specialized Products
Schedule Of Asset Impairment Charges [Line Items]
Goodwill impairment	43.6		43.6
Other Long-Lived Assets Impairments	0.0		0.0
Total Impairments	43.6		43.6
Furniture, Flooring & Textile Products
Schedule Of Asset Impairment Charges [Line Items]
Goodwill impairment	44.5		44.5
Other Long-Lived Assets Impairments	0.0		0.0
Total Impairments	$ 44.5		$ 44.5

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Schedule Of Asset Impairment Charges [Line Items]

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Amount of write-down of assets recognized in the income statement. Includes, but is not limited to, losses from tangible assets, intangible assets and goodwill.

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Amount of impairment loss from asset representing future economic benefit arising from other asset acquired in business combination or from joint venture formation or both, that is not individually identified and separately recognized.

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The charge against earnings resulting from the write down of long lived assets other than goodwill due to the difference between the carrying value and lower fair value.

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