CONSOLIDATED STATEMENT OF EQUITY (Parenthetical) - shares	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Common Stock [Member]
Retirement of common stock,shares		1,026,397
Treasury Stock [Member]
Repurchase of common stock, shares		129,451
Total Stockholders' Equity – PrimeEnergy [Member]
Repurchase of common stock, shares	40,941