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v3.20.4

Property, Plant and Equipment | 12 Months Ended
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Dec. 31, 2020
Property, Plant and Equipment |
Property, Plant and Equipment | Note 8 Property, Plant and Equipment ​ The major components of our property, plant and equipment are as follows: ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | December 31, |
​ |  | 2020 |  | 2019 |
​ | ​ | (In thousands) |
Land | ​ | $ | 28,261 | ​ | $ | 33,931 | ​
Buildings | ​ |  | 141,365 | ​ |  | 132,603 | ​
Drilling rigs and related equipment | ​ |  | 12,487,961 | ​ |  | 12,948,504 | ​
Oilfield hauling and mobile equipment | ​ |  | 259,150 | ​ |  | 270,826 | ​
Other machinery and equipment | ​ |  | 195,903 | ​ |  | 192,081 | ​
Oil and gas properties | ​ | ​ | — | ​ | ​ | 12,286 | ​
Construction-in-process (1) | ​ |  | — | ​ |  | 25,391 | ​
​ | ​ | $ | 13,112,640 | ​ | $ | 13,615,622 | ​
Less: accumulated depreciation and amortization | ​ |  | (9,126,933) | ​ |  | (8,685,073) | ​
​ | ​ | $ | 3,985,707 | ​ | $ | 4,930,549 | ​
(1) | Relates primarily to amounts capitalized for new or substantially new drilling rigs and related equipment that were under construction and had not yet been placed in service as of December 31, 2019.
​ Depreciation expense included in depreciation and amortization expense in our consolidated statements of income (loss) totaled $851.8 million, $869.6 million and $860.6 million during 2020, 2019 and 2018, respectively. ​ Repair and maintenance expense included in direct costs in our consolidated statements of income (loss) totaled $154.2 million, $248.6 million and $265.6 million during 2020, 2019 and 2018, respectively. ​ Interest costs of $0.7 million, $1.5 million and $1.0 million were capitalized during 2020, 2019 and 2018, respectively.

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- Definition The entire disclosure for long-lived, physical asset used in normal conduct of business and not intended for resale. Includes, but is not limited to, work of art, historical treasure, and similar asset classified as collections. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 958 -SubTopic 360 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=120429125&loc=d3e99893-112916 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -URI http://asc.fasb.org/topic&trid=2155823 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 958 -SubTopic 360 -Section 50 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=120429125&loc=SL120174063-112916 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 958 -SubTopic 360 -Section 50 -Paragraph 1 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=120429125&loc=d3e99779-112916 + Details
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