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v3.25.4

Nature Of Operations (Tables) | 12 Months Ended
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Dec. 31, 2025
Organization, Consolidation and Presentation of Financial Statements [Abstract] |
Schedule Of Segment Reporting Information | The following tables are presented at the level of disaggregation regularly reviewed by the CODM to evaluate operating performance and allocate resources to segments:
As of and for the year ended 2025 |  | Mineral Fiber |  |  | Architectural Specialties |  |  | Unallocated Corporate |  |  | Total |
Net sales to external customers |  | $ | 1,030.7 |  |  | $ | 590.1 |  |  | $ | - |  |  | $ | 1,620.8 |
Cost of goods sold |  |  | 603.3 |  |  |  | 357.4 |  |  |  | 1.4 |  |  |  | 962.1 |
Gross profit (loss) |  |  | 427.4 |  |  |  | 232.7 |  |  |  | (1.4 | ) |  |  | 658.7 |
SG&A expenses |  |  | 178.9 |  |  |  | 159.6 |  |  |  | 1.0 |  |  |  | 339.5 |
Loss related to change in fair value of contingent consideration |  |  | 0.6 |  |  |  | 0.8 |  |  |  | - |  |  |  | 1.4 |
(Gain) loss on sales of fixed assets, net |  |  | (0.9 | ) |  |  | 0.1 |  |  |  | - |  |  |  | (0.8 | )
Equity (earnings) loss from unconsolidated affiliates, net |  |  | (113.2 | ) |  |  | - |  |  |  | 0.9 |  |  |  | (112.3 | )
Segment operating income (loss) |  | $ | 362.0 |  |  | $ | 72.2 |  |  | $ | (3.3 | ) |  | $ | 430.9 |
Segment assets |  | $ | 1,095.6 |  |  | $ | 612.7 |  |  | $ | 216.4 |  |  | $ | 1,924.7 |
Investment in unconsolidated affiliates |  |  | 22.9 |  |  |  | - |  |  |  | 3.7 |  |  |  | 26.6 |
Depreciation and amortization |  |  | 86.7 |  |  |  | 33.7 |  |  |  | - |  |  |  | 120.4 |
Purchases of property, plant and equipment |  |  | 86.9 |  |  |  | 22.5 |  |  |  | - |  |  |  | 109.4 |
As of and for the year ended 2024 |  | Mineral Fiber |  |  | Architectural Specialties |  |  | Unallocated Corporate |  |  | Total |
Net sales to external customers |  | $ | 986.0 |  |  | $ | 459.7 |  |  | $ | - |  |  | $ | 1,445.7 |
Cost of goods sold |  |  | 586.2 |  |  |  | 276.3 |  |  |  | 1.6 |  |  |  | 864.1 |
Gross profit (loss) |  |  | 399.8 |  |  |  | 183.4 |  |  |  | (1.6 | ) |  |  | 581.6 |
SG&A expenses |  |  | 180.8 |  |  |  | 126.7 |  |  |  | 1.0 |  |  |  | 308.5 |
Loss related to change in fair value of contingent consideration |  |  | 0.2 |  |  |  | 1.4 |  |  |  | - |  |  |  | 1.6 |
Loss on sales of fixed assets, net |  |  | 0.6 |  |  |  | - |  |  |  | - |  |  |  | 0.6 |
Equity (earnings) loss from unconsolidated affiliates, net |  |  | (104.3 | ) |  |  | - |  |  |  | 0.9 |  |  |  | (103.4 | )
Segment operating income (loss) |  | $ | 322.5 |  |  | $ | 55.3 |  |  | $ | (3.5 | ) |  | $ | 374.3 |
Segment assets |  | $ | 1,063.8 |  |  | $ | 602.2 |  |  | $ | 176.7 |  |  | $ | 1,842.7 |
Investment in unconsolidated affiliates |  |  | 22.6 |  |  |  | - |  |  |  | 4.6 |  |  |  | 27.2 |
Depreciation and amortization |  |  | 80.2 |  |  |  | 23.0 |  |  |  | - |  |  |  | 103.2 |
Purchases of property, plant and equipment |  |  | 64.3 |  |  |  | 18.5 |  |  |  | - |  |  |  | 82.8 |
As of and for the year ended 2023 |  | Mineral Fiber |  |  | Architectural Specialties |  |  | Unallocated Corporate |  |  | Total |
Net sales to external customers |  | $ | 932.4 |  |  | $ | 362.8 |  |  | $ | - |  |  | $ | 1,295.2 |
Cost of goods sold |  |  | 574.1 |  |  |  | 222.4 |  |  |  | 1.7 |  |  |  | 798.2 |
Gross profit (loss) |  |  | 358.3 |  |  |  | 140.4 |  |  |  | (1.7 | ) |  |  | 497.0 |
SG&A expenses |  |  | 161.9 |  |  |  | 99.4 |  |  |  | 1.2 |  |  |  | 262.5 |
Loss related to change in fair value of contingent consideration |  |  | - |  |  |  | 0.1 |  |  |  | - |  |  |  | 0.1 |
Equity (earnings) from unconsolidated affiliates, net |  |  | (89.3 | ) |  |  | - |  |  |  | - |  |  |  | (89.3 | )
Segment operating income (loss) |  | $ | 285.7 |  |  | $ | 40.9 |  |  | $ | (2.9 | ) |  | $ | 323.7 |
Segment assets |  | $ | 1,091.9 |  |  | $ | 421.1 |  |  | $ | 159.4 |  |  | $ | 1,672.4 |
Investment in unconsolidated affiliates |  |  | 17.4 |  |  |  | - |  |  |  | - |  |  |  | 17.4 |
Depreciation and amortization |  |  | 75.3 |  |  |  | 13.9 |  |  |  | - |  |  |  | 89.2 |
Purchases of property, plant and equipment |  |  | 67.2 |  |  |  | 16.6 |  |  |  | - |  |  |  | 83.8 |
In 2025, we sold a parcel of land at a Mineral Fiber plant for total proceeds of $1.0 million, with a $0.9 million gain recorded upon sale. In 2024, we sold an idled Mineral Fiber plant in St. Helens, Oregon for total proceeds of $9.4 million, with a $4.6 million gain recorded upon sale. Also in 2024, we sold a parcel of undeveloped land adjacent to our corporate campus in Lancaster, Pennsylvania within our Mineral Fiber segment for total proceeds of $12.8 million. Upon classification to held for sale during the third quarter of 2024, we recognized an impairment loss of $4.9 million and during the fourth quarter of 2024 we recognized a $0.3 million loss upon sale. Finally, in 2024 we sold a building and related land of an Architectural Specialties design center in Chicago, Illinois for total proceeds of $2.1 million, with no gain or loss recorded upon sale. The impact of these transactions is recorded within (gain) loss on sales of fixed assets, net on our Consolidated Statements of Earnings and Comprehensive Income.
Reconciliation Of Total Consolidated Operating Income To Earnings Before Income Taxes | The following table reconciles our total consolidated operating income to earnings before income taxes. These items are only measured and managed on a consolidated basis:
|  | 2025 |  |  | 2024 |  |  | 2023 |
Total consolidated operating income |  | $ | 430.9 |  |  | $ | 374.3 |  |  | $ | 323.7 |
Interest expense |  |  | 33.0 |  |  |  | 39.8 |  |  |  | 35.3 |
Other non-operating (income), net |  |  | (2.4 | ) |  |  | (12.6 | ) |  |  | (9.9 | )
Earnings before income taxes |  | $ | 400.3 |  |  | $ | 347.1 |  |  | $ | 298.3 |
Schedule Of Net Sales Allocated To Geographic Area | The following table presents net sales allocated to geographic areas based on the shipping location of our selling entities:
|  | 2025 |  |  | 2024 |  |  | 2023 |
Mineral Fiber: |  |  |  |  |  |  |  |  |
United States |  | $ | 954.0 |  |  | $ | 909.5 |  |  | $ | 854.2 |
Canada |  |  | 76.7 |  |  |  | 76.5 |  |  |  | 78.2 |
Total Mineral Fiber |  |  | 1,030.7 |  |  |  | 986.0 |  |  |  | 932.4 |
Architectural Specialties: |  |  |  |  |  |  |  |  |
United States |  |  | 577.6 |  |  |  | 448.8 |  |  |  | 349.3 |
Canada |  |  | 12.5 |  |  |  | 10.9 |  |  |  | 13.5 |
Total Architectural Specialties |  |  | 590.1 |  |  |  | 459.7 |  |  |  | 362.8 |
Total net sales |  | $ | 1,620.8 |  |  | $ | 1,445.7 |  |  | $ | 1,295.2 |
Schedule Of Property, Plant And Equipment Allocated To Geographic Area | The following table presents the geographical location of property, plant and equipment, net, by segment:
|  | December 31, 2025 |  |  | December 31, 2024 |
Mineral Fiber: |  |  |  |  |  |
United States |  | $ | 503.7 |  |  | $ | 477.9 |
Total Mineral Fiber |  |  | 503.7 |  |  |  | 477.9 |
Architectural Specialties: |  |  |  |  |  |
United States |  |  | 121.0 |  |  |  | 116.6 |
Canada |  |  | 6.0 |  |  |  | 4.3 |
Total Architectural Specialties |  |  | 127.0 |  |  |  | 120.9 |
Total property, plant and equipment, net |  | $ | 630.7 |  |  | $ | 598.8 |

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