DERIVATIVE INSTRUMENTS (Schedule of Notional Amounts of Outstanding Derivatives) (Details) gal in Millions, MMcf in Millions |
Jun. 30, 2019
gal
MMcf
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Dec. 31, 2018
gal
MMcf
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|---|---|---|
| Natural Gas [Member] | Ìý | Ìý |
| Derivative [Line Items] | Ìý | Ìý |
| Investment Contract Volume | MMcf | 9.0 | 1.8 |
| Diesel [Member] | Ìý | Ìý |
| Derivative [Line Items] | Ìý | Ìý |
| Investment Contract Volume | gal | 5.0 | 11.0 |
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- Definition The volume of a commodity or material specified in an investment contract. No definition available.
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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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