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Number of shares authorized for issuance under share-based payment arrangement.

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SHARE-BASED COMPENSATION (Details) - USD ($) $ / shares in Units, $ in Thousands		1 Months Ended	2 Months Ended	3 Months Ended				5 Months Ended	7 Months Ended	12 Months Ended
	Jun. 04, 2018	Dec. 31, 2019	May 31, 2018	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2018	May 31, 2018	Dec. 31, 2018	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016	Oct. 31, 2019	Oct. 08, 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Financial Designation, Predecessor and Successor [Fixed List]								Predecessor	Successor	Successor	Successor	Predecessor	Predecessor
Number of units and/or rights that may be awarded under long-term incentive plan			5,000,000					5,000,000
Share-based compensation cost								$ 3,784	$ 1,227	$ 2,543		$ 4,266
Dividends payable, amount per share														$ 7.00	$ 7.00
Omnibus Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of units and/or rights that may be awarded under long-term incentive plan	689,362
Number of shares available for grant		300,000		300,000						300,000
Restricted stock shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted									61,300	322,172
Units vested									54,800	166,210
Scheduled to vest		137,542		137,542					6,500	137,542	6,500
Shares forfeited										24,920
Weighted average fair value of phantom units									$ 20.33	$ 15.24
Units vested, fair value									$ 1,200
Dividends payable, amount per share														$ 7.00
Dividend, share-based payment arrangement, cash		$ 50
Dividends payable		700		$ 700						$ 700
Restricted stock shares \| Omnibus Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted										322,172
Units vested				4,406	72,384	50,008
Shares vesting on future date										9,872
Shares forfeited										19,181
Share-based compensation cost									1,100	$ 2,500
Fair value of shares granted										4,900
Unrecognized compensation, other than options		1,600		$ 1,600						$ 1,600
Unrecognized compensation, other than options, period of recognition										1 year 4 months 24 days
Restricted stock shares \| Omnibus Incentive Plan \| San Juan Property [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Units vested						30,188
Restricted Stock Vesting Subject to Future Events [Member] \| Omnibus Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted										36,141
Unrecognized compensation, other than options		$ 600		$ 600						$ 600
Restricted Stock Graded Vesting [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted										150,000
Restricted Stock Graded Vesting [Member] \| Omnibus Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period										3 years
Unvested Phantom Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted			0				0					0
Vesting period										4 years
Units vested								1,460,234
Scheduled to vest												1,511,920
Shares forfeited								51,686
Share-based compensation cost								$ 1,000				$ 4,300
Accelerated compensation cost								2,800
Units vested, fair value								$ 6,700				$ 6,300
Series A Preferred Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation cost									$ 88	$ 65
Rate for preferred stock	8.00%
Deferred compensation arrangement with individual, fair value of shares issued										200	$ 200
Series A Preferred Stock [Member] \| Share-based Payment Arrangement, Employee [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares issued	21,000
Employee [Member] \| Series A Preferred Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation cost										$ 21