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Property, Plant and Equipment (Tables) | 12 Months Ended
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Dec. 31, 2024
Property, Plant and Equipment |
Schedule of major components of property, plant and equipment | The major components of our property, plant and equipment are as follows: ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | December 31, |
​ |  | 2024 |  | 2023 |
​ | ​ | (In thousands) |
Land | ​ | $ | 31,529 | ​ | $ | 32,074 | ​
Buildings | ​ |  | 158,518 | ​ |  | 140,330 | ​
Drilling rigs and related equipment | ​ |  | 12,084,276 | ​ |  | 11,959,989 | ​
Oilfield hauling and mobile equipment | ​ |  | 228,730 | ​ |  | 233,920 | ​
Other machinery and equipment | ​ |  | 252,369 | ​ |  | 237,567 | ​
​ | ​ | $ | 12,755,422 | ​ | $ | 12,603,880 | ​
Less: accumulated depreciation and amortization | ​ |  | (9,924,465) | ​ |  | (9,705,152) | ​
​ | ​ | $ | 2,830,957 | ​ | $ | 2,898,728 | ​
Depreciation expense included in depreciation and amortization expense in our consolidated statements of income (loss) totaled $632.9 million, $644.9 million and $663.1 million during 2024, 2023 and 2022, respectively.

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- Definition Tabular disclosure of physical assets used in the normal conduct of business and not intended for resale. Includes, but is not limited to, balances by class of assets, depreciation and depletion expense and method used, including composite depreciation, and accumulated deprecation. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 50 -Paragraph 1 -SubTopic 10 -Topic 360 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482099/360-10-50-1 + Details
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