Property Acquisitions - Schedule of Assets Acquired and Liabilities Assumed (Details) - Undeveloped Acreage and Oil and Gas Producing Properties From Silverback Exploration, LLC - USD ($) $ in Thousands	1 Months Ended	3 Months Ended
	Dec. 31, 2016	Mar. 31, 2017
Business Acquisition [Line Items]
Purchase price	$ 855,000	$ 867,772
Unproved properties		753,763
Proved properties		116,700
Other property and equipment		56
Liabilities		$ (2,747)