PROPERTY AND EQUIPMENT (Summary of Non-producing Properties Excluded from Amortization by Area) (Details) - USD ($) |
Sep. 30, 2019 |
Dec. 31, 2018 |
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| Capitalized Costs of Unproved Properties Excluded from Amortization [Line Items] | ||
| Total non-producing properties not subject to amortization | $ 2,814,334,000 | $ 2,873,037,000 |
| Utica | ||
| Capitalized Costs of Unproved Properties Excluded from Amortization [Line Items] | ||
| Total non-producing properties not subject to amortization | 1,464,803,000 | |
| MidContinent | ||
| Capitalized Costs of Unproved Properties Excluded from Amortization [Line Items] | ||
| Total non-producing properties not subject to amortization | 1,349,191,000 | |
| Other | ||
| Capitalized Costs of Unproved Properties Excluded from Amortization [Line Items] | ||
| Total non-producing properties not subject to amortization | $ 340,000 |
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- Definition 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
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
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