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Goodwill Impairment Testing (Details) - USD ($) $ in Millions | 6 Months Ended | 12 Months Ended
--- | --- | ---
Jun. 30, 2026 | Jun. 30, 2025 | Dec. 31, 2025
Goodwill [Line Items] |  |  |
Goodwill value | $ 745.1 |  | $ 751.4
Terminal Values Long-term Growth Rate for Debt-Free Cash Flow | 2.50% |  | 3.00%
Goodwill impairment | $ 0.0 | $ 0.0 |
Bedding |  |  |
Goodwill [Line Items] |  |  |
Goodwill value | $ 320.8 |  | $ 323.7
Percentage of fair value in excess of carrying amount (as a percent) | 10.00% | 20.00% |
Home furniture |  |  |
Goodwill [Line Items] |  |  |
Goodwill value | $ 68.5 |  | 68.4
Percentage of fair value in excess of carrying amount (as a percent) | 5.00% | 35.00% |
Increase discount rate (as percent) | 1.00% |  |
Goodwill impairment | $ 0.0 |  |
Work furniture |  |  |
Goodwill [Line Items] |  |  |
Goodwill value | $ 54.6 |  | $ 55.0
Percentage of fair value in excess of carrying amount (as a percent) | 10.00% | 30.00% |
Minimum |  |  |
Goodwill [Line Items] |  |  |
Compound Annual Growth Rate (CAGR) Range for Sales | (1.00%) |  | (2.00%)
Discount rate ranges (as a percent) | 17.00% |  | 15.00%
Maximum |  |  |
Goodwill [Line Items] |  |  |
Compound Annual Growth Rate (CAGR) Range for Sales | 4.00% |  | 4.00%
Discount rate ranges (as a percent) | 19.00% |  | 17.00%
Less than 25% |  |  |
Goodwill [Line Items] |  |  |
Fair Value over Carrying Value divided by Carrying Value | 25.00% |  |
Goodwill value | $ 443.9 |  |
Terminal Values Long-term Growth Rate for Debt-Free Cash Flow | 2.50% |  |
Less than 25% | Minimum |  |  |
Goodwill [Line Items] |  |  |
Compound Annual Growth Rate (CAGR) Range for Sales | 2.00% |  |
Discount rate ranges (as a percent) | 17.00% |  |
Less than 25% | Maximum |  |  |
Goodwill [Line Items] |  |  |
Compound Annual Growth Rate (CAGR) Range for Sales | 4.00% |  |
Discount rate ranges (as a percent) | 19.00% |  |
25% - 50% |  |  |
Goodwill [Line Items] |  |  |
Goodwill value | $ 301.2 |  |
Terminal Values Long-term Growth Rate for Debt-Free Cash Flow | 2.50% |  |
Discount rate ranges (as a percent) | 17.00% |  |
25% - 50% | Minimum |  |  |
Goodwill [Line Items] |  |  |
Fair Value over Carrying Value divided by Carrying Value | 25.00% |  |
Compound Annual Growth Rate (CAGR) Range for Sales | (1.00%) |  |
25% - 50% | Maximum |  |  |
Goodwill [Line Items] |  |  |
Fair Value over Carrying Value divided by Carrying Value | 50.00% |  |
Compound Annual Growth Rate (CAGR) Range for Sales | 4.00% |  |
Less than 50% |  |  |
Goodwill [Line Items] |  |  |
Fair Value over Carrying Value divided by Carrying Value |  |  | 50.00%
Goodwill value |  |  | $ 447.1
Terminal Values Long-term Growth Rate for Debt-Free Cash Flow |  |  | 3.00%
Less than 50% | Minimum |  |  |
Goodwill [Line Items] |  |  |
Compound Annual Growth Rate (CAGR) Range for Sales |  |  | 1.00%
Discount rate ranges (as a percent) |  |  | 15.00%
Less than 50% | Maximum |  |  |
Goodwill [Line Items] |  |  |
Compound Annual Growth Rate (CAGR) Range for Sales |  |  | 4.00%
Discount rate ranges (as a percent) |  |  | 17.00%
51% - 100% |  |  |
Goodwill [Line Items] |  |  |
Goodwill value |  |  | $ 304.3
Terminal Values Long-term Growth Rate for Debt-Free Cash Flow |  |  | 3.00%
51% - 100% | Minimum |  |  |
Goodwill [Line Items] |  |  |
Fair Value over Carrying Value divided by Carrying Value |  |  | 51.00%
Compound Annual Growth Rate (CAGR) Range for Sales |  |  | (2.00%)
Discount rate ranges (as a percent) |  |  | 15.00%
51% - 100% | Maximum |  |  |
Goodwill [Line Items] |  |  |
Fair Value over Carrying Value divided by Carrying Value |  |  | 100.00%
Compound Annual Growth Rate (CAGR) Range for Sales |  |  | 4.00%
Discount rate ranges (as a percent) |  |  | 17.00%

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