Commodity Derivative Contracts (Details Textuals) - Crude oil - Minimum	Sep. 30, 2020
Initial measurement period (August 1, 2020 - July 31, 2021)
Derivative [Line Items]
Required hedge percentage	65.00%
Subsequent measurement period (August 1, 2021 - July 31, 2022)
Derivative [Line Items]
Required hedge percentage	35.00%

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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Period Type:	duration