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CONDENSED CONSOLIDATED STATEMENT OF EQUITY (Parenthetical) - shares
3 Months Ended
Mar. 31, 2020
Mar. 31, 2019
Treasury Stock [Member]    
Purchase of common stock, shares 4,801 5,693
Total Stockholders' Equity – PrimeEnergy [Member]    
Purchase of common stock, shares 4,801 5,693