OIL AND NATURAL GAS PROPERTIES (Details) $ in Thousands	1 Months Ended	2 Months Ended	3 Months Ended		12 Months Ended
	Oct. 31, 2019	Dec. 31, 2019 USD ($)	Mar. 31, 2020 USD ($) $ / MMBbls $ / bbl	Mar. 31, 2019 USD ($) $ / MMBbls $ / bbl	Dec. 31, 2019 USD ($)	Oct. 02, 2019 USD ($)	Oct. 01, 2019 USD ($)
Oil and Natural Gas Properties
Subject to depletion		$ 420,609	$ 485,813		$ 420,609	$ 380,364
Not subject to depletion:
Total not subject to depletion		105,009	104,923		105,009	108,954
Gross oil and natural gas properties		525,618	590,736		525,618	489,318
Less accumulated depletion		(19,474)	(37,075)		(19,474)
Net oil and natural gas properties		$ 506,144	$ 553,661		$ 506,144	$ 489,318
Ceiling Limitation Disclosures
Oil And Natural Gas, Evaluated Properties, Fair Value Disclosure							$ 380,400
Oil And Natural Gas, Unevaluated Properties, Fair Value Disclosure							109,000
Crude oil spot price (per share) | $ / bbl			55.96	63.06
Natural gas price (per share) | $ / MMBbls			2.300	3.07
Amount of unevaluated property costs transferred to the full cost pool				$ 51,000
Full cost ceiling impairment				275,239
Full cost ceiling impairment, after tax				$ 217,400
Financial Designation, Predecessor and Successor [Fixed List]	Successor	Successor	Successor	Predecessor	Successor
Predecessor
Oil and Natural Gas Properties
Subject to depletion							2,155,288
Not subject to depletion:
Total not subject to depletion							438,365
Gross oil and natural gas properties							2,593,653
Less accumulated depletion							(1,709,719)
Net oil and natural gas properties							$ 883,934