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Business Segments - Capital Expenditures (Detail) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2021 | Jun. 30, 2020 | Jun. 30, 2021 | Jun. 30, 2020
Segment Reporting Information [Line Items] |  |  |  |
Capital expenditures | $ 38,050 | $ 49,673 | $ 56,573 | $ 121,601
Corporate |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Capital expenditures | 439 | 373 | 619 | 1,304
Operating Segments | Contract Drilling |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Capital expenditures | 24,042 | 42,501 | 35,469 | 91,946
Operating Segments | Pressure Pumping |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Capital expenditures | 8,921 | 1,947 | 12,989 | 16,227
Operating Segments | Directional Drilling |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Capital expenditures | 1,219 | 2,044 | 1,323 | 4,052
Other Operations |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Capital expenditures | $ 3,429 | $ 2,808 | $ 6,173 | $ 8,072

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- Definition The cash outflow associated with the acquisition of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale; includes cash outflows to pay for construction of self-constructed assets. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 13 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3213-108585 + Details
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