LONG TERM DEBT - Senior Facility (Details) $ in Thousands			1 Months Ended		3 Months Ended
	Apr. 30, 2020 USD ($)	Oct. 08, 2019 USD ($)	Apr. 30, 2020 USD ($)	Dec. 31, 2019 USD ($) item	Mar. 31, 2020 USD ($)	Nov. 01, 2020 USD ($)	Nov. 21, 2019 USD ($)	Oct. 02, 2019 USD ($)	Oct. 01, 2019 USD ($)
Current and long-term debt
Cash and cash equivalents				$ 5,701	$ 938			$ 15,546	$ 15,546
Senior revolving credit facility
Current and long-term debt
Amount available for issuance of letters of credit		$ 50,000
Debt Instrument, Threshold Total Net Indebtedness Leverage Ratio					3.50
Senior revolving credit facility | Minimum
Current and long-term debt
Prepayment deficiency percentage exception		10.00%
Senior revolving credit facility | LIBOR | Maximum
Current and long-term debt
Variable rate percentage		50.00%
Successor Senior revolving credit facility
Current and long-term debt
Debt				$ 144,000	$ 170,000
Maximum borrowing capacity		$ 750,000,000
Number of interim unscheduled redeterminations of borrowing base to which the company and lender each have the right | item				1
Number of consecutive semi-annual redeterminations between which the company and the lenders each have the right to one interim unscheduled redetermination of borrowing base | item				2
Amount outstanding					170,000
Letters of credit outstanding					4,400
Borrowing capacity available					$ 25,600
Successor Senior revolving credit facility | Minimum
Current and long-term debt
Current Ratio					1.00
First Amendment To Senior Revolving Credit Facility
Current and long-term debt
Current borrowing capacity							$ 240,000
Debt Instrument, Threshold Total Net Indebtedness Leverage Ratio					3.50
Subsequent event | Senior revolving credit facility | ABR-based | Minimum
Current and long-term debt
Applicable margin (as a percent)			1.50%
Subsequent event | Successor Senior revolving credit facility
Current and long-term debt
Current borrowing capacity	$ 200,000		$ 200,000
Subsequent event | Successor Senior revolving credit facility | ABR-based | Maximum
Current and long-term debt
Applicable margin (as a percent)			2.50%
Subsequent event | Successor Senior revolving credit facility | LIBOR | Minimum
Current and long-term debt
Applicable margin (as a percent)			2.50%
Subsequent event | Successor Senior revolving credit facility | LIBOR | Maximum
Current and long-term debt
Applicable margin (as a percent)			3.50%
Subsequent event | Second Amendment to the Senior Credit Agreement [Member]
Current and long-term debt
Current borrowing capacity	200,000		$ 200,000
Scheduled borrowing base reductions per month	5,000		$ 5,000
Subsequent event | Second Amendment to the Senior Credit Agreement [Member] | Minimum
Current and long-term debt
Maximum cash balance to be carried before needing to repay borrowings	$ 10,000
Credit facility, waiver, settlement	100.00%
Subsequent event | Second Amendment to the Senior Credit Agreement [Member] | ABR-based | Minimum
Current and long-term debt
Applicable margin (as a percent)	1.50%
Subsequent event | Second Amendment to the Senior Credit Agreement [Member] | ABR-based | Maximum
Current and long-term debt
Applicable margin (as a percent)	2.50%
Subsequent event | Second Amendment to the Senior Credit Agreement [Member] | Euro-dollar based | Minimum
Current and long-term debt
Applicable margin (as a percent)	2.50%
Subsequent event | Second Amendment to the Senior Credit Agreement [Member] | Euro-dollar based | Maximum
Current and long-term debt
Applicable margin (as a percent)	3.50%
Forecast | Second Amendment to the Senior Credit Agreement [Member]
Current and long-term debt
Current borrowing capacity						$ 185,000