Capitalization of Exploratory Well Costs (Detail) $ in Millions |
Jun. 30, 2015
USD ($)
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| Mutamba Iroru [Member] | Aging of Capitalized Exploratory Well Costs, Period Two [Member] | |
| Capitalized Costs Relating To Oil And Gas Producing Activities By Geographic Area [Line Items] | |
| Capitalized exploratory well costs that have been capitalized for a period greater than one year | $ 9.2 |
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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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- Definition The amount of exploratory well costs that have been capitalized for a period of greater than one year after the completion of drilling. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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