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Acquisition - Additional Information (Details)
a in Thousands, $ in Thousands
 3 Months Ended
Feb. 14, 2018
USD ($)
a
shares
Mar. 31, 2018
USD ($)
Business Acquisition [Line Items]    
Aggregate cash consideration paid   $ 520,728
Permian Basin Acquisition [Member]    
Business Acquisition [Line Items]    
Net acres acquired | a 22  
Cash $ 549,770  
Aggregate consideration paid in shares (shares) | shares 46,000,000  
Actual total revenue of acquiree included in condensed financials   11,500
Actual operating income of acquiree included in condensed financials   3,400
Finite lived intangible asset $ 1,000  
Consideration paid to Forge Energy $ 920,990  
Noncompete Agreements [Member] | Permian Basin Acquisition [Member]    
Business Acquisition [Line Items]    
Useful life of acquired intangible asset 1 year  
Amortization of Intangible Assets   $ 42