| Component: (Network and Table) | |
|---|---|
| Network | 40901 - Disclosure - Asset Retirement Obligations (Changes in Asset Retirement Obligations) (Details) (http://www.energyxxi.com/role/DisclosureAssetRetirementObligationsChangesInAssetRetirementObligationsDetails)  | 
| Table | (Implied) | 
| Reporting Entity [Axis] | 0001343719 (http://www.sec.gov/CIK) | 
| Asset Retirement Obligations [Abstract] | Period [Axis] | |
|---|---|---|
2015-07-01 - 2016-06-30  | 2014-07-01 - 2015-06-30  | |
Asset Retirement Obligations [Abstract]  | ||
Beginning of period total  | 487,085,000    | 559,834,000    | 
Liabilities acquired  | ||
Liabilities incurred and true up of liabilities settled  | ||
Liabilities settled  | (  | (  | 
Liabilities sold  | (  | |
Revisions  | (  | |
Accretion expense  | ||
End of period total  | 537,619,000    | 487,085,000    | 
Less: End of period, current portion  | 71,717,000    | 33,286,000    | 
End of period, noncurrent portion  | 465,902,000    | 453,799,000    |