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liability.","units":{"USD":[{"start":"2010-01-01","end":"2010-06-30","val":154500,"accn":"0000950123-11-076965","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-15"},{"start":"2010-04-01","end":"2010-06-30","val":77200,"accn":"0000950123-11-076965","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-15","frame":"CY2010Q2"},{"start":"2010-01-01","end":"2010-09-30","val":231700,"accn":"0000950123-11-097573","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-10"},{"start":"2010-07-01","end":"2010-09-30","val":77200,"accn":"0000950123-11-097573","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-10","frame":"CY2010Q3"},{"start":"2010-01-01","end":"2010-12-31","val":309000,"accn":"0001193125-12-142694","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-30","frame":"CY2010"},{"start":"2011-01-01","end":"2011-03-31","val":105700,"accn":"0001193125-12-231088","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-14","frame":"CY2011Q1"},{"start":"2011-01-01","end":"2011-06-30","val":211400,"accn":"0000950123-11-076965","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-15"},{"start":"2011-01-01","end":"2011-06-30","val":211400,"accn":"0001193125-12-354854","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-14"},{"start":"2011-04-01","end":"2011-06-30","val":105700,"accn":"0000950123-11-076965","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-08-15"},{"start":"2011-04-01","end":"2011-06-30","val":105700,"accn":"0001193125-12-354854","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-14","frame":"CY2011Q2"},{"start":"2011-01-01","end":"2011-09-30","val":317200,"accn":"0000950123-11-097573","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-10"},{"start":"2011-01-01","end":"2011-09-30","val":317200,"accn":"0001193125-12-462751","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09"},{"start":"2011-07-01","end":"2011-09-30","val":105800,"accn":"0000950123-11-097573","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-11-10"},{"start":"2011-07-01","end":"2011-09-30","val":105800,"accn":"0001193125-12-462751","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09","frame":"CY2011Q3"},{"start":"2011-01-01","end":"2011-12-31","val":422900,"accn":"0001193125-12-142694","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-30"},{"start":"2011-01-01","end":"2011-12-31","val":422900,"accn":"0001193125-13-135714","fy":2012,"fp":"FY","form":"10-K","filed":"2013-04-01","frame":"CY2011"},{"start":"2012-01-01","end":"2012-03-31","val":100300,"accn":"0001193125-12-231088","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-05-14"},{"start":"2012-01-01","end":"2012-03-31","val":100300,"accn":"0001193125-13-219444","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-14","frame":"CY2012Q1"},{"start":"2012-01-01","end":"2012-06-30","val":200700,"accn":"0001193125-12-354854","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-14"},{"start":"2012-01-01","end":"2012-06-30","val":200700,"accn":"0001357361-13-000002","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-13"},{"start":"2012-04-01","end":"2012-06-30","val":100400,"accn":"0001193125-12-354854","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-14"},{"start":"2012-04-01","end":"2012-06-30","val":100400,"accn":"0001357361-13-000002","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-13","frame":"CY2012Q2"},{"start":"2012-01-01","end":"2012-09-30","val":301100,"accn":"0001193125-12-462751","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09"},{"start":"2012-01-01","end":"2012-09-30","val":301100,"accn":"0001564590-13-001238","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-12"},{"start":"2012-07-01","end":"2012-09-30","val":100400,"accn":"0001193125-12-462751","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09"},{"start":"2012-07-01","end":"2012-09-30","val":100400,"accn":"0001564590-13-001238","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-12","frame":"CY2012Q3"},{"start":"2012-01-01","end":"2012-12-31","val":401400,"accn":"0001193125-13-135714","fy":2012,"fp":"FY","form":"10-K","filed":"2013-04-01"},{"start":"2012-01-01","end":"2012-12-31","val":401400,"accn":"0001564590-14-001181","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-31","frame":"CY2012"},{"start":"2013-01-01","end":"2013-03-31","val":110400,"accn":"0001193125-13-219444","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-05-14"},{"start":"2013-01-01","end":"2013-03-31","val":110400,"accn":"0001564590-14-002206","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-15","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-06-30","val":220700,"accn":"0001357361-13-000002","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-13"},{"start":"2013-01-01","end":"2013-06-30","val":220700,"accn":"0001564590-14-003760","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-14"},{"start":"2013-04-01","end":"2013-06-30","val":110300,"accn":"0001357361-13-000002","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-13"},{"start":"2013-04-01","end":"2013-06-30","val":110300,"accn":"0001564590-14-003760","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-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Retirement Obligation, Cash Paid to Settle","description":"Amount of cash paid during the period to settle an asset retirement obligation. Amounts paid to settle an asset retirement obligation are generally included in the operating section of the Statement of Cash Flows.","units":{"USD":[{"start":"2012-01-01","end":"2012-12-31","val":11600,"accn":"0001564590-14-001181","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-31","frame":"CY2012"},{"start":"2013-01-01","end":"2013-12-31","val":26000,"accn":"0001564590-14-001181","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-31"},{"start":"2013-01-01","end":"2013-12-31","val":26000,"accn":"0001564590-15-002231","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-31","frame":"CY2013"},{"start":"2014-01-01","end":"2014-06-30","val":300,"accn":"0001564590-15-007368","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-14"},{"start":"2014-01-01","end":"2014-09-30","val":300,"accn":"0001564590-15-011032","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-23"},{"start":"2014-01-01","end":"2014-12-31","val":300,"accn":"0001564590-15-002231","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-31"},{"start":"2014-01-01","end":"2014-12-31","val":300,"accn":"0001564590-16-016234","fy":2015,"fp":"FY","form":"10-K","filed":"2016-04-14","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":0,"accn":"0001564590-16-019820","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-23","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":0,"accn":"0001564590-16-024407","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-15"},{"start":"2015-01-01","end":"2015-12-31","val":24200,"accn":"0001564590-16-016234","fy":2015,"fp":"FY","form":"10-K","filed":"2016-04-14","frame":"CY2015"},{"start":"2016-01-01","end":"2016-03-31","val":100,"accn":"0001564590-16-019820","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-23","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":-2200,"accn":"0001564590-16-024407","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-15"}]}},"AssetRetirementObligationLiabilitiesSettled":{"label":"Asset Retirement Obligation, Liabilities Settled","description":"Amount of asset retirement obligations settled, or otherwise disposed of, during the period. This may include asset retirement obligations transferred to third parties associated with the sale of a long-lived asset.","units":{"USD":[{"start":"2011-01-01","end":"2011-09-30","val":0,"accn":"0001193125-12-462751","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09"},{"start":"2011-01-01","end":"2011-12-31","val":0,"accn":"0001193125-13-135714","fy":2012,"fp":"FY","form":"10-K","filed":"2013-04-01","frame":"CY2011"},{"start":"2012-01-01","end":"2012-09-30","val":-11600,"accn":"0001193125-12-462751","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09"},{"start":"2012-01-01","end":"2012-09-30","val":11600,"accn":"0001564590-13-001238","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-12"},{"start":"2012-07-01","end":"2012-09-30","val":11600,"accn":"0001564590-13-001238","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-12","frame":"CY2012Q3"},{"start":"2012-01-01","end":"2012-12-31","val":-11600,"accn":"0001193125-13-135714","fy":2012,"fp":"FY","form":"10-K","filed":"2013-04-01"},{"start":"2012-01-01","end":"2012-12-31","val":11600,"accn":"0001564590-14-001181","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-31","frame":"CY2012"},{"start":"2013-01-01","end":"2013-06-30","val":-21600,"accn":"0001357361-13-000002","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-13"},{"start":"2013-01-01","end":"2013-06-30","val":21600,"accn":"0001564590-14-003760","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-14"},{"start":"2013-04-01","end":"2013-06-30","val":-21600,"accn":"0001357361-13-000002","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-13"},{"start":"2013-04-01","end":"2013-06-30","val":21600,"accn":"0001564590-14-003760","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-14","frame":"CY2013Q2"},{"start":"2013-01-01","end":"2013-09-30","val":25500,"accn":"0001564590-13-001238","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-12"},{"start":"2013-01-01","end":"2013-09-30","val":25500,"accn":"0001564590-14-005757","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-14"},{"start":"2013-07-01","end":"2013-09-30","val":3900,"accn":"0001564590-13-001238","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-12"},{"start":"2013-07-01","end":"2013-09-30","val":3900,"accn":"0001564590-14-005757","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-14","frame":"CY2013Q3"},{"start":"2013-01-01","end":"2013-12-31","val":26000,"accn":"0001564590-14-001181","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-31"},{"start":"2013-01-01","end":"2013-12-31","val":26000,"accn":"0001564590-15-002231","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-31","frame":"CY2013"},{"start":"2014-01-01","end":"2014-06-30","val":300,"accn":"0001564590-14-003760","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-14"},{"start":"2014-01-01","end":"2014-06-30","val":300,"accn":"0001564590-15-007368","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-14"},{"start":"2014-04-01","end":"2014-06-30","val":300,"accn":"0001564590-14-003760","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-14"},{"start":"2014-04-01","end":"2014-06-30","val":300,"accn":"0001564590-15-007368","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-14","frame":"CY2014Q2"},{"start":"2014-01-01","end":"2014-09-30","val":300,"accn":"0001564590-14-005757","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-14"},{"start":"2014-01-01","end":"2014-09-30","val":300,"accn":"0001564590-15-011032","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-23"},{"start":"2014-01-01","end":"2014-12-31","val":300,"accn":"0001564590-15-002231","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-31"},{"start":"2014-01-01","end":"2014-12-31","val":300,"accn":"0001564590-16-016234","fy":2015,"fp":"FY","form":"10-K","filed":"2016-04-14","frame":"CY2014"},{"start":"2015-01-01","end":"2015-09-30","val":700800,"accn":"0001564590-15-011032","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-23"},{"start":"2015-07-01","end":"2015-09-30","val":700800,"accn":"0001564590-15-011032","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-23","frame":"CY2015Q3"},{"start":"2015-01-01","end":"2015-12-31","val":24200,"accn":"0001564590-16-016234","fy":2015,"fp":"FY","form":"10-K","filed":"2016-04-14","frame":"CY2015"}]}},"AssetRetirementObligationPeriodIncreaseDecrease":{"label":"Asset Retirement Obligation, Period Increase (Decrease)","description":"Amount of increase (decrease) in asset retirement obligations.","units":{"USD":[{"start":"2011-01-01","end":"2011-06-30","val":0,"accn":"0001193125-12-354854","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-14"},{"start":"2011-04-01","end":"2011-06-30","val":0,"accn":"0001193125-12-354854","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-14","frame":"CY2011Q2"},{"start":"2011-01-01","end":"2011-09-30","val":0,"accn":"0001193125-12-462751","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09"},{"start":"2011-07-01","end":"2011-09-30","val":0,"accn":"0001193125-12-462751","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09","frame":"CY2011Q3"},{"start":"2012-01-01","end":"2012-06-30","val":0,"accn":"0001193125-12-354854","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-14"},{"start":"2012-04-01","end":"2012-06-30","val":0,"accn":"0001193125-12-354854","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-08-14","frame":"CY2012Q2"},{"start":"2012-01-01","end":"2012-09-30","val":0,"accn":"0001193125-12-462751","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09"},{"start":"2012-07-01","end":"2012-09-30","val":0,"accn":"0001193125-12-462751","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-09","frame":"CY2012Q3"}]}},"AssetRetirementObligationRevisionOfEstimate":{"label":"Asset Retirement Obligation, Revision of Estimate","description":"Amount of increase (decrease) in the asset retirement obligation from changes in the amount or timing of the estimated cash flows associated with the settlement of the obligation.","units":{"USD":[{"start":"2010-01-01","end":"2010-12-31","val":1589200,"accn":"0001193125-12-142694","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-30","frame":"CY2010"},{"start":"2011-01-01","end":"2011-12-31","val":407800,"accn":"0001193125-12-142694","fy":2011,"fp":"FY","form":"10-K","filed":"2012-03-30"},{"start":"2011-01-01","end":"2011-12-31","val":407800,"accn":"0001193125-13-135714","fy":2012,"fp":"FY","form":"10-K","filed":"2013-04-01","frame":"CY2011"},{"start":"2012-01-01","end":"2012-12-31","val":-150600,"accn":"0001193125-13-135714","fy":2012,"fp":"FY","form":"10-K","filed":"2013-04-01"},{"start":"2012-01-01","end":"2012-12-31","val":-150600,"accn":"0001564590-14-001181","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-31","frame":"CY2012"},{"start":"2013-01-01","end":"2013-12-31","val":-841000,"accn":"0001564590-14-001181","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-31"},{"start":"2013-01-01","end":"2013-12-31","val":-841000,"accn":"0001564590-15-002231","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-31","frame":"CY2013"},{"start":"2014-01-01","end":"2014-12-31","val":2901800,"accn":"0001564590-15-002231","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-31"},{"start":"2014-01-01","end":"2014-12-31","val":2901800,"accn":"0001564590-16-016234","fy":2015,"fp":"FY","form":"10-K","filed":"2016-04-14","frame":"CY2014"},{"start":"2015-01-01","end":"2015-12-31","val":-700800,"accn":"0001564590-16-016234","fy":2015,"fp":"FY","form":"10-K","filed":"2016-04-14","frame":"CY2015"}]}},"Assets":{"label":"Assets","description":"Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or 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This element is intended to be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements.","units":{"USD":[{"end":"2012-06-30","val":0,"accn":"0001357361-13-000002","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-13","frame":"CY2012Q2I"},{"end":"2013-06-30","val":0,"accn":"0001357361-13-000002","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-13"},{"end":"2013-06-30","val":0,"accn":"0001564590-14-003760","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-14","frame":"CY2013Q2I"},{"end":"2013-09-30","val":0,"accn":"0001564590-14-005757","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-14","frame":"CY2013Q3I"},{"end":"2014-03-31","val":0,"accn":"0001564590-15-004383","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-15","frame":"CY2014Q1I"},{"end":"2014-06-30","val":0,"accn":"0001564590-14-003760","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-14"},{"end":"2014-06-30","val":0,"accn":"0001564590-15-007368","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-14","frame":"CY2014Q2I"},{"end":"2014-09-30","val":0,"accn":"0001564590-14-005757","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-14"},{"end":"2014-09-30","val":0,"accn":"0001564590-15-011032","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-23","frame":"CY2014Q3I"},{"end":"2015-03-31","val":0,"accn":"0001564590-15-004383","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-15","frame":"CY2015Q1I"},{"end":"2015-06-30","val":0,"accn":"0001564590-15-007368","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-14","frame":"CY2015Q2I"},{"end":"2015-09-30","val":0,"accn":"0001564590-15-011032","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-23","frame":"CY2015Q3I"}]}},"CapitalizedCostsAccumulatedDepreciationDepletionAmortizationAndValuationAllowanceForRelatingToOilAndGasProducingActivities":{"label":"Capitalized 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