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v3.25.4

Property, Plant and Equipment | 12 Months Ended
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Dec. 31, 2025
Property, Plant and Equipment |
Property, Plant and Equipment | Note 9: Property, Plant and Equipment Property, plant and equipment are presented at cost net of accumulated depreciation and consist of the following: ​
​ | ​ | ​ | ​ | ​ | ​ | ​
December 31, | ​ ​ ​ | 2025 | ​ ​ ​ | 2024
(in thousands) | ​ | ​ | ​ | ​ | ​ | ​
Land | ​ | $ | 21,084 | ​ | $ | 19,802
Buildings and leasehold improvements | ​ |  | 114,974 | ​ |  | 132,871
Operating equipment | ​ |  | 968,751 | ​ |  | 884,793
Computer software | ​ |  | 35,229 | ​ |  | 19,297
Furniture and fixtures | ​ |  | 5,046 | ​ |  | 5,157
Vehicles | ​ |  | 306,809 | ​ |  | 311,823
Gross property, plant and equipment | ​ |  | 1,451,893 | ​ |  | 1,373,743
Less: accumulated depreciation | ​ |  | (920,337) | ​ |  | (860,227)
Net property, plant and equipment | ​ | $ | 531,556 | ​ | $ | 513,516
​ Depreciation expense was $151.0 million in 2025, $130.5 million in 2024, and $107.3 million in 2023. The Company transferred inventory to property, plant and equipment totaling $16.2 million in 2025, $17.0 million in 2024 and $10.9 million in 2023.

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