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Business Segments - Capital Expenditures (Detail) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
Segment Reporting Information [Line Items] |  |  |
Capital expenditures | $ 347,512 | $ 641,458 | $ 567,087
Corporate |  |  |
Segment Reporting Information [Line Items] |  |  |
Capital expenditures | 4,612 | 2,426 | 1,884
Operating Segments | Contract Drilling |  |  |
Segment Reporting Information [Line Items] |  |  |
Capital expenditures | 194,416 | 394,595 | 354,425
Operating Segments | Pressure Pumping |  |  |
Segment Reporting Information [Line Items] |  |  |
Capital expenditures | 105,803 | 173,848 | 171,436
Operating Segments | Directional Drilling |  |  |
Segment Reporting Information [Line Items] |  |  |
Capital expenditures | 15,549 | 35,929 | 7,795
Other Operations |  |  |
Segment Reporting Information [Line Items] |  |  |
Capital expenditures | $ 27,132 | $ 34,660 | $ 31,547

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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=118932676&loc=d3e3213-108585 + Details
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