Acquisitions - Additional Information (Detail) - Seventy Seven Energy Inc. shares in Millions, $ in Millions			3 Months Ended
	Apr. 20, 2017 USD ($) Rigs hp shares	Jan. 27, 2017 USD ($)	Mar. 31, 2017	Dec. 31, 2016 USD ($)
Business Acquisition [Line Items]
Repayment of outstanding debt		$ 472.0
Repayment of outstanding debt, net of cash		$ 403.0
Closing date of acquisition			Apr. 20, 2017
Assets acquired and liabilities assumed, total assets				$ 949.0
Assets acquired and liabilities assumed, cash				48.7
Assets acquired and liabilities assumed, account receivable				99.5
Assets acquired and liabilities assumed, property and equipment				750.0
Assets acquired and liabilities assumed, other assets				$ 50.8
Subsequent Event
Business Acquisition [Line Items]
Shares of common stock exchange in business acquisition | shares	46.3
Repayment of outstanding debt	$ 472.0
Repayment of outstanding debt, net of cash	403.0
Total fair value of the consideration transferred	$ 1,500.0
Number of drilling rigs acquired | Rigs	91
Number of horsepower of modern, efficient fracturing equipment | hp	500,000
Subsequent Event | APEX Class Rigs
Business Acquisition [Line Items]
Number of rigs | Rigs	36
Restricted Stock Units (RSUs) | Subsequent Event
Business Acquisition [Line Items]
Percentage of shares withheld for tax obligations upon vesting of restricted units	50.00%
Number shares to be issued to former restricted stock unit holders | shares	0.5