Property Acquisitions - Additional Information (Details) $ in Thousands		1 Months Ended	3 Months Ended	6 Months Ended
	Jun. 08, 2017 USD ($) a Wells	Dec. 31, 2016 USD ($) a Wells	Mar. 31, 2017 USD ($)	Jun. 30, 2017 USD ($)
Business Acquisition [Line Items]
Acquisition of oil and natural gas properties				$ (405,244)
Unproved properties acquired		$ 1,905,661		2,122,262
Proved properties		605,853		1,006,202
Payable to Silverback		$ 32,293		0
Undeveloped Acreage and Oil and Gas Producing Properties From Silverback Exploration, LLC
Business Acquisition [Line Items]
Number of horizontal wells acquired (in wells) | Wells		31
Gas and oil area, area offset by existing acreage (in acres) | a		35,500
Gas and oil area, gross offset existing acreage (in acres) | a		43,500
Gas and oil area, operated by company, percent		90.00%
Gas and oil area, working interest, percent		90.00%
Consideration transferred		$ 855,000	$ 867,772
Payable to Silverback		$ 32,300
Adjustments to provisional amount				300
Northern Delaware Basin
Business Acquisition [Line Items]
Number of horizontal wells acquired (in wells) | Wells	36
Gas and oil area, area offset by existing acreage (in acres) | a	11,850
Gas and oil area, gross offset existing acreage (in acres) | a	14,770
Acquisition of oil and natural gas properties	$ (349,100)
Gas and oil area, operated by company, percent	79.00%
Gas and oil area, working interest, percent	85.00%
Proved properties				$ 53,200
Capitalized transaction costs	$ 400
Northern Delaware Basin | Scenario, Previously Reported
Business Acquisition [Line Items]
Acquisition of oil and natural gas properties	(350,000)
Northern Delaware Basin | Restatement Adjustment
Business Acquisition [Line Items]
Acquisition of oil and natural gas properties	900
Unproved properties acquired	$ 296,200