INCOME TAXES - Analysis of Deferred Taxes (Details) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Tax effect of temporary differences:
Net operating loss carryforwards	$ 66,304
Oil and gas properties	12,035
Asset retirement obligations	44,751
Stock compensation	278
Derivatives	3,110
Accrued incentive compensation	2,269
Debt issuance costs	644
Other	1,600
Total deferred tax assets (liabilities)	130,991
Valuation allowance	(130,991)
Net deferred tax assets (liabilities)	$ 0
Predecessor
Tax effect of temporary differences:
Net operating loss carryforwards		$ 201,557
Oil and gas properties		85,772
Asset retirement obligations		85,312
Stock compensation		3,294
Derivatives		0
Accrued incentive compensation		954
Debt issuance costs		7,480
Other		441
Total deferred tax assets (liabilities)		384,810
Valuation allowance		(384,810)
Net deferred tax assets (liabilities)		$ 0