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v3.25.3

Revenue (Tables) | 9 Months Ended
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Sep. 30, 2025
Mineral Fiber [Member] |
Disaggregation Of Revenue [Line Items] |
Schedule of Net Sales by Major Customer Channel within Each Segment | The following tables present net sales by major customer channel within our Mineral Fiber and Architectural Specialties segments for the three and nine months ended September 30, 2025 and 2024:
|  | Three Months Ended |  |  | Nine Months Ended |
|  | September 30, |  |  | September 30, |
Mineral Fiber |  | 2025 |  |  | 2024 |  |  | 2025 |  |  | 2024 |
Distributors |  | $ | 205.0 |  |  | $ | 188.7 |  |  | $ | 585.2 |  |  | $ | 542.9 |
Home centers |  |  | 26.6 |  |  |  | 26.7 |  |  |  | 78.6 |  |  |  | 82.2 |
Direct customers |  |  | 15.6 |  |  |  | 15.7 |  |  |  | 47.6 |  |  |  | 45.4 |
Other |  |  | 26.8 |  |  |  | 26.9 |  |  |  | 74.7 |  |  |  | 77.3 |
Total |  | $ | 274.0 |  |  | $ | 258.0 |  |  | $ | 786.1 |  |  | $ | 747.8 |
Architectural Specialties [Member] |
Disaggregation Of Revenue [Line Items] |
Schedule of Net Sales by Major Customer Channel within Each Segment |
|  | Three Months Ended |  |  | Nine Months Ended |
|  | September 30, |  |  | September 30, |
Architectural Specialties |  | 2025 |  |  | 2024 |  |  | 2025 |  |  | 2024 |
Distributors |  | $ | 67.3 |  |  | $ | 59.5 |  |  | $ | 191.6 |  |  | $ | 168.8 |
Direct customers |  |  | 76.7 |  |  |  | 63.1 |  |  |  | 235.0 |  |  |  | 146.8 |
Other |  |  | 7.2 |  |  |  | 6.0 |  |  |  | 19.8 |  |  |  | 14.6 |
Total |  | $ | 151.2 |  |  | $ | 128.6 |  |  | $ | 446.4 |  |  | $ | 330.2 |

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