PROPERTY AND EQUIPMENT (Summary of Non-producing Properties Excluded from Amortization by Area) (Details) $ in Thousands	Sep. 30, 2021 USD ($)
Property, Plant and Equipment [Line Items]
Total unproved properties	$ 216,357
Utica
Property, Plant and Equipment [Line Items]
Total unproved properties	179,449
SCOOP
Property, Plant and Equipment [Line Items]
Total unproved properties	36,905
Other
Property, Plant and Equipment [Line Items]
Total unproved properties	$ 3

The sum of the capitalized costs incurred, as of the balance sheet date, of unproved properties excluded from amortization including acquisition costs, exploration costs, development costs, and production costs.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 932
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-10.(c)(7)(ii))
-URI http://asc.fasb.org/extlink&oid=123726172&loc=d3e511914-122862

Name:	us-gaap_CapitalizedCostsOfUnprovedPropertiesExcludedFromAmortizationCumulative
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant