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Acquisitions - Additional Information (Detail) shares in Thousands, $ in Thousands				12 Months Ended
	Oct. 11, 2017 USD ($) shares	Apr. 20, 2017 USD ($) Rigs hp shares	Jan. 27, 2017 USD ($)	Dec. 31, 2018 USD ($)	Dec. 31, 2017 USD ($)	Dec. 31, 2016 USD ($)
Business Acquisition [Line Items]
Goodwill				$ 410,756	$ 611,473	$ 86,234
Increase in goodwill due to measurement period adjustments				1,000
Merger and integration related costs				2,738	74,451
Contract Drilling
Business Acquisition [Line Items]
Goodwill				395,060	395,060	86,234
Increase in goodwill due to measurement period adjustments				0
Pressure Pumping
Business Acquisition [Line Items]
Goodwill				0	121,444	$ 0
Increase in goodwill due to measurement period adjustments				$ 0
Seventy Seven Energy Inc.
Business Acquisition [Line Items]
Shares of common stock exchange in business acquisition | shares		46,298
Repayment of outstanding debt		$ 472,000	$ 472,000
Merger date				Apr. 20, 2017
Total fair value of the consideration transferred		$ 1,511,396
Number of drilling rigs acquired | Rigs		91
Number of horsepower of fracturing equipment | hp		500,000
Goodwill		$ 436,554
Merger and integration related costs					$ 36,700
Seventy Seven Energy Inc. | Contract Drilling
Business Acquisition [Line Items]
Goodwill		309,000
Seventy Seven Energy Inc. | Pressure Pumping
Business Acquisition [Line Items]
Goodwill		121,000
Seventy Seven Energy Inc. | Oilfield Rentals
Business Acquisition [Line Items]
Goodwill		$ 6,300
Seventy Seven Energy Inc. | APEX Class Rigs
Business Acquisition [Line Items]
Number of rigs | Rigs		36
MS Directional
Business Acquisition [Line Items]
Shares of common stock exchange in business acquisition | shares	8,798
Repayment of outstanding debt	$ 63,000
Merger date				Oct. 11, 2017
Total fair value of the consideration transferred	257,275
Goodwill	89,685
Aggregate consideration paid by the company	69,800
Business acquisition, description of acquired entity				MS Directional is a leading directional drilling services company in the United States, with operations in most major producing onshore oil and gas basins. MS Directional provides a comprehensive suite of directional drilling services, including directional drilling, downhole performance motors, motor rentals, directional surveying, measurement-while-drilling, and wireline steering tools.
Increase in goodwill due to measurement period adjustments	$ 1,000

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