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Property, Plant, and Equipment
 12 Months Ended
Dec. 31, 2025
Property, Plant and Equipment [Abstract]  
Property, Plant, and Equipment Property, Plant, and Equipment
The following table summarizes the components of property, plant, and equipment as of December 31, 2025 and 2024.
December 31,
2025		December 31,
2024
 (in millions)
Land$197.0 $158.3 
Mineral reserves1,114.7 1,111.7 
Buildings and improvements443.5 366.4 
Machinery and other1,292.9 1,292.8 
Construction in progress136.5 129.7 
3,184.6 3,058.9 
Less accumulated depreciation and depletion(1,086.8)(929.5)
$2,097.8 $2,129.4 
We did not capitalize any interest expense as part of the construction of facilities and equipment during 2025 or 2024.
As of December 31, 2025 and 2024, the Company had non-operating facilities with a net book value of $8.6 million and $12.7 million, respectively, classified as property, plant, and equipment, net on our Consolidated Balance Sheets. We estimate the fair market value of properties not currently in use based on the location and condition of the properties, the fair market value of similar properties in the area, and the Company's experience selling similar properties in the past. Our estimated fair value of these assets exceeds their book value.
During the years ended December 31, 2025 and 2024, the Company recorded impairments of $1.6 million and $5.8 million, respectively, related to plant closures in our Construction Products segment. No impairment charges were recognized during the year ended December 31, 2023. During the years ended December 31, 2025, 2024, and 2023, the Company recognized gains on the disposition of property, plant, and equipment of $18.1 million, $10.3 million, and $28.2 million, respectively, primarily related to the sale of land and equipment. The impairments and gains on sale of property, plant, and equipment are included in other operating income on the Consolidated Statements of Operations. Depreciation and depletion related to assets that contribute to the production of revenue are included in cost of revenues on the Consolidated Statements of Operations.