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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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