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Subsequent Events (Details) - Malaysia [Member] - USD ($) $ in Millions | 3 Months Ended |  |
--- | --- | --- | ---
Jun. 30, 2017 | Apr. 01, 2017 | Mar. 31, 2017
Subsequent Event [Line Items] |  |  |
Working interest |  |  | 8.60%
Scenario, Forecast [Member] |  |  |
Subsequent Event [Line Items] |  |  |
Debt decrease | $ 56.7 |  |
Subsequent Event [Member] |  |  |
Subsequent Event [Line Items] |  |  |
Working interest |  | 6.70% |

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- Definition Net increase or decrease in the carrying amount of the debt instrument for the period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(f)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 + Details
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- Definition Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event. + References No definition available. + Details
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