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Business Segments - Depreciation, Depletion, Amortization and Impairment (Detail) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2022 | Jun. 30, 2021 | Jun. 30, 2022 | Jun. 30, 2021
Segment Reporting Information [Line Items] |  |  |  |
Depreciation | $ 121,553 | $ 144,037 | $ 238,491 | $ 296,919
Operating Segments |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Depreciation | 1,273 | 1,492 | 2,662 | 2,994
Operating Segments | Contract Drilling |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Depreciation, amortization and impairment | 84,905 | 98,592 | 166,928 | 200,266
Operating Segments | Pressure Pumping |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Depreciation, amortization and impairment | 24,713 | 31,740 | 48,498 | 69,125
Operating Segments | Directional Drilling |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Depreciation, amortization and impairment | 3,859 | 6,594 | 7,203 | 13,091
Other Operations |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Depreciation and amortization | $ 6,803 | $ 5,619 | $ 13,200 | $ 11,443

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- Definition The current period expense charged against earnings on long-lived, physical assets not used in production, and which are not intended for resale, to allocate or recognize the cost of such assets over their useful lives; or to record the reduction in book value of an intangible asset over the benefit period of such asset; or to reflect consumption during the period of an asset that is not used in production. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=123570139&loc=d3e3602-108585 + Details
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