COMMON AND PREFERRED STOCK - Common Stock Outstanding (Details) - shares	1 Months Ended	12 Months Ended
	Aug. 31, 2018	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Changes in number of common stock shares [Roll forward]
Beginning Balance (in shares)		66,791,633	63,259,781	63,120,384
Repurchases of Common Stock (in shares)		7,359,953	0	0
Stock Options Exercised - Net (in shares)		62,500	0	0
Restricted Stock Grants (in shares)		3,295,302	911,355	2,109,814
Debt Exchanges (in shares)		136,063,799	0	0
Equity Offerings (in shares)		96,926,019	0	0
Stock Consideration for Acquisitions of Oil and Natural Gas Properties (in shares)		83,730,539	0	0
Legal settlement (in shares)		0	3,000,000	0
Surrenders - Tax Obligations (in shares)		(266,683)	(270,510)	(375,875)
Other Forfeitures (in shares)	(187,500)	(910,086)	(108,993)	(1,594,542)
Ending balance (in shares)		378,333,070	66,791,633	63,259,781