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Business Segments - Capital Expenditures (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Segment Reporting Information [Line Items]
Capital expenditures	$ 68,028	$ 162,785	$ 283,288	$ 480,568
Corporate
Segment Reporting Information [Line Items]
Capital expenditures	700	958	2,804	1,711
Operating Segments | Contract Drilling
Segment Reporting Information [Line Items]
Capital expenditures	34,752	103,295	158,141	299,637
Operating Segments | Pressure Pumping
Segment Reporting Information [Line Items]
Capital expenditures	19,826	44,860	90,028	125,978
Operating Segments | Directional Drilling
Segment Reporting Information [Line Items]
Capital expenditures	5,559	6,855	11,121	29,718
Other Operations
Segment Reporting Information [Line Items]
Capital expenditures	$ 7,191	$ 6,817	$ 21,194	$ 23,524

X

- 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

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- Definition

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+ References

No definition available.

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