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Impairment Charges (Summary of Changes In The Carrying Amounts Of Goodwill) (Details) - USD ($) $ in Millions	3 Months Ended	12 Months Ended
	Jun. 30, 2024	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023	Jun. 30, 2025
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Goodwill value		$ 751.4	$ 794.4
Terminal Values Long-term Growth Rate for Debt-Free Cash Flow		3.00%	3.00%
Long-lived asset impairment			$ 682.3
Goodwill impairment	$ 675.3	$ 0.0	676.0	$ 0.0
Hydraulic Cylinders Group
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Goodwill impairment	43.6
Bedding
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Goodwill value		323.7	310.0
Percentage of fair value in excess of carrying amount (as a percent)					20.00%
Goodwill impairment	587.2
Aerospace Products
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Goodwill value			66.8
Percentage of fair value in excess of carrying amount (as a percent)					48.00%
Work Furniture
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Goodwill value		55.0	53.6
Percentage of fair value in excess of carrying amount (as a percent)					29.00%
Goodwill impairment	$ 44.5
Home Furniture
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Goodwill value		$ 68.4	$ 67.7
Percentage of fair value in excess of carrying amount (as a percent)					34.00%
Minimum
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Compound annual growth rate range for sales		(2.00%)	(1.00%)
Discount rate ranges (as a percent)		15.00%	14.00%
Maximum
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Compound annual growth rate range for sales		4.00%	12.00%
Discount rate ranges (as a percent)		17.00%	17.00%
Less than 50%
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Goodwill value		$ 447.1	$ 430.4
Terminal Values Long-term Growth Rate for Debt-Free Cash Flow		3.00%	3.00%
Less than 50% | Minimum
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Compound annual growth rate range for sales		1.00%	(1.00%)
Discount rate ranges (as a percent)		15.00%	14.00%
Less than 50% | Maximum
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value over Carrying Value divided by Carrying Value		50.00%	50.00%
Compound annual growth rate range for sales		4.00%	12.00%
Discount rate ranges (as a percent)		17.00%	17.00%
50% - 100%
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Goodwill value		$ 304.3
Terminal Values Long-term Growth Rate for Debt-Free Cash Flow		3.00%
50% - 100% | Minimum
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value over Carrying Value divided by Carrying Value		51.00%
Compound annual growth rate range for sales		(2.00%)
Discount rate ranges (as a percent)		15.00%
50% - 100% | Maximum
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value over Carrying Value divided by Carrying Value		100.00%
Compound annual growth rate range for sales		4.00%
Discount rate ranges (as a percent)		17.00%
101% - 300%
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Goodwill value			$ 364.0
Terminal Values Long-term Growth Rate for Debt-Free Cash Flow			3.00%
101% - 300% | Minimum
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value over Carrying Value divided by Carrying Value			101.00%
Compound annual growth rate range for sales			3.00%
101% - 300% | Maximum
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value over Carrying Value divided by Carrying Value			300.00%
Compound annual growth rate range for sales			7.00%
Discount rate ranges (as a percent)			14.00%

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