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Acquisitions and Dispositions (Details) - USD ($)
$ in Thousands
12 Months Ended
Jan. 24, 2018
Dec. 31, 2019
Dec. 31, 2018
Dec. 22, 2017
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]        
Payments for (Proceeds from) Other Investing Activities   $ 5,112 $ 8,740  
Bay De Chene [Member]        
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]        
Purchase and sale contract       $ 16,300
Cash to be released for purchase and sale contract   $ 2,300    
AWP Olmos Sale [Member]        
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]        
Proceeds from Sale of Oil and Gas Property and Equipment $ 27,000      
Buyer's Assumption of ARO $ 6,300