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For example, but not limited to, barrel of oil equivalents (BOE) or one thousand cubic feet of natural gas equivalent (Mcfe).","units":{"Bcfe":[{"start":"2016-01-01","end":"2016-12-31","val":83.7,"accn":"0001564590-19-008021","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-15","frame":"CY2016"},{"start":"2017-01-01","end":"2017-12-31","val":113.4,"accn":"0001564590-19-008021","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-15"},{"start":"2017-01-01","end":"2017-12-31","val":113.4,"accn":"0001564590-20-009568","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-10","frame":"CY2017"},{"start":"2018-01-01","end":"2018-12-31","val":125.3,"accn":"0001564590-19-008021","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-15"},{"start":"2018-01-01","end":"2018-12-31","val":125.3,"accn":"0001564590-20-009568","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-10","frame":"CY2018"},{"start":"2019-01-01","end":"2019-12-31","val":200,"accn":"0001564590-20-009568","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-10","frame":"CY2019"}]}},"ProvedDevelopedAndUndevelopedReservePurchaseOfMineralInPlaceEnergy":{"label":"Proved Developed and Undeveloped Reserve, Purchase of Mineral in Place (Energy)","description":"Energy measure of increase in quantity of proved reserve of oil and gas resulting from purchase of mineral in place, stated in a unit of energy. For example, but not limited to, barrel of oil equivalents (BOE) or one thousand cubic feet of natural gas equivalent (Mcfe).","units":{"Bcfe":[{"start":"2016-01-01","end":"2016-12-31","val":4.1,"accn":"0001564590-19-008021","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-15","frame":"CY2016"},{"start":"2017-01-01","end":"2017-12-31","val":1.9,"accn":"0001564590-19-008021","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-15"},{"start":"2017-01-01","end":"2017-12-31","val":1.9,"accn":"0001564590-20-009568","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-10","frame":"CY2017"},{"start":"2018-01-01","end":"2018-12-31","val":16.3,"accn":"0001564590-19-008021","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-15"},{"start":"2018-01-01","end":"2018-12-31","val":16.3,"accn":"0001564590-20-009568","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-10","frame":"CY2018"},{"start":"2019-01-01","end":"2019-12-31","val":525.5,"accn":"0001564590-20-009568","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-10","frame":"CY2019"}]}},"ProvedDevelopedAndUndevelopedReserveRevisionOfPreviousEstimateEnergy":{"label":"Proved Developed and Undeveloped Reserve, Revision of Previous Estimate (Energy)","description":"Energy measure of increase (decrease) in quantity of proved reserve of oil and gas related to revision of a previous estimate resulting from new information, except for an increase in proved acreage, or change in economic factors, stated in a unit of energy. For example, but not limited to, barrel of oil equivalents (BOE) or one thousand cubic feet of natural gas equivalent (Mcfe).","units":{"Bcfe":[{"start":"2016-01-01","end":"2016-12-31","val":14.8,"accn":"0001564590-19-008021","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-15","frame":"CY2016"},{"start":"2017-01-01","end":"2017-12-31","val":695.6,"accn":"0001564590-19-008021","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-15"},{"start":"2017-01-01","end":"2017-12-31","val":695.6,"accn":"0001564590-20-009568","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-10","frame":"CY2017"},{"start":"2018-01-01","end":"2018-12-31","val":-42.8,"accn":"0001564590-19-008021","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-15"},{"start":"2018-01-01","end":"2018-12-31","val":-42.8,"accn":"0001564590-20-009568","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-10","frame":"CY2018"},{"start":"2019-01-01","end":"2019-12-31","val":-59.6,"accn":"0001564590-20-009568","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-10","frame":"CY2019"}]}},"ProvedDevelopedAndUndevelopedReservesSaleOfMineralInPlaceEnergy":{"label":"Proved Developed and Undeveloped Reserves, Sale of Mineral in Place (Energy)","description":"Energy measure of decrease in quantity of proved reserve of oil and gas resulting from sale of mineral in place, stated in a unit of energy. For example, but not limited to, barrel of oil equivalents (BOE) or one thousand cubic feet of natural gas equivalent (Mcfe).","units":{"Bcfe":[{"start":"2016-01-01","end":"2016-12-31","val":10.7,"accn":"0001564590-19-008021","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-15","frame":"CY2016"},{"start":"2018-01-01","end":"2018-12-31","val":0.2,"accn":"0001564590-19-008021","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-15"},{"start":"2018-01-01","end":"2018-12-31","val":0.2,"accn":"0001564590-20-009568","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-10","frame":"CY2018"}]}},"ProvedDevelopedReservesBOE1":{"label":"Proved Developed Reserves (Energy)","description":"Energy measure of interests in proved developed reserves of crude oil, including condensate and natural gas liquids, natural gas, synthetic oil and gas, or other nonrenewable natural resource that is intended to be upgraded into synthetic oil and 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gas.","units":{"Bcfe":[{"end":"2015-12-31","val":70.3,"accn":"0001564590-19-008021","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-15","frame":"CY2015Q4I"},{"end":"2016-12-31","val":171.6,"accn":"0001564590-19-008021","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-15"},{"end":"2016-12-31","val":171.6,"accn":"0001564590-20-009568","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-10","frame":"CY2016Q4I"},{"end":"2017-12-31","val":1002.6,"accn":"0001564590-19-008021","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-15"},{"end":"2017-12-31","val":1002.6,"accn":"0001564590-20-009568","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-10","frame":"CY2017Q4I"},{"end":"2018-12-31","val":1194.1,"accn":"0001564590-19-008021","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-15"},{"end":"2018-12-31","val":1194.1,"accn":"0001564590-20-009568","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-10","frame":"CY2018Q4I"},{"end":"2019-12-31","val":1235.6,"accn":"0001564590-20-009568","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-10","frame":"CY2019Q4I"}]}},"RevisionsOfPreviousQuantityEstimates":{"label":"Revisions of Previous Quantity Estimates","description":"Amount of increase (decrease) in standardized measure of discounted future net cash flow as a result of revisions of estimated quantity of oil and gas in proved reserves.","units":{"USD":[{"start":"2016-01-01","end":"2016-12-31","val":15754000,"accn":"0001564590-19-008021","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-15","frame":"CY2016"},{"start":"2017-01-01","end":"2017-12-31","val":322917000,"accn":"0001564590-19-008021","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-15"},{"start":"2017-01-01","end":"2017-12-31","val":322917000,"accn":"0001564590-20-009568","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-10","frame":"CY2017"},{"start":"2018-01-01","end":"2018-12-31","val":19910000,"accn":"0001564590-19-008021","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-15"},{"start":"2018-01-01","end":"2018-12-31","val":19910000,"accn":"0001564590-20-009568","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-10","frame":"CY2018"},{"start":"2019-01-01","end":"2019-12-31","val":7345000,"accn":"0001564590-20-009568","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-10","frame":"CY2019"}]}},"SalesAndTransfersOfOilAndGasProducedNetOfProductionCosts":{"label":"Sales 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sources.","units":{"USD":[{"start":"2016-01-01","end":"2016-12-31","val":7157000,"accn":"0001564590-19-008021","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-15","frame":"CY2016"},{"start":"2017-01-01","end":"2017-12-31","val":-33992000,"accn":"0001564590-19-008021","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-15"},{"start":"2017-01-01","end":"2017-12-31","val":-33992000,"accn":"0001564590-20-009568","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-10","frame":"CY2017"},{"start":"2018-01-01","end":"2018-12-31","val":-27343000,"accn":"0001564590-19-008021","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-15"},{"start":"2018-01-01","end":"2018-12-31","val":-27343000,"accn":"0001564590-20-009568","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-10","frame":"CY2018"},{"start":"2019-01-01","end":"2019-12-31","val":-90723000,"accn":"0001564590-20-009568","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-10","frame":"CY2019"}]}},"StandardizedMeasureOfDiscountedFutureNetCashFlowRelatingToProvedOilAndGasReservesAccretionOfDiscount":{"label":"Standardized 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Cash Equivalents, Restricted Cash and Restricted Cash Equivalents","description":"Amount of cash and cash equivalents, and cash and cash equivalents restricted to withdrawal or usage. Excludes amount for disposal group and discontinued operations. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits. Cash equivalents include, but are not limited to, short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.","units":{"USD":[{"end":"2016-12-31","val":201229000,"accn":"0001564590-20-009568","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-10","frame":"CY2016Q4I"},{"end":"2017-12-31","val":17224000,"accn":"0001564590-19-042125","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-08"},{"end":"2017-12-31","val":17224000,"accn":"0001564590-20-009568","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-10","frame":"CY2017Q4I"},{"end":"2018-09-30","val":6412000,"accn":"0001564590-19-042125","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-08","frame":"CY2018Q3I"},{"end":"2018-12-31","val":5959000,"accn":"0001564590-19-042125","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-08"},{"end":"2018-12-31","val":5959000,"accn":"0001564590-20-009568","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-10"},{"end":"2018-12-31","val":5959000,"accn":"0001564590-20-023337","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-08"},{"end":"2018-12-31","val":5959000,"accn":"0001564590-20-038149","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"end":"2018-12-31","val":5959000,"accn":"0001564590-20-051720","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06","frame":"CY2018Q4I"},{"end":"2019-03-31","val":7592000,"accn":"0001564590-20-023337","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-08","frame":"CY2019Q1I"},{"end":"2019-06-30","val":9448000,"accn":"0001564590-20-038149","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07","frame":"CY2019Q2I"},{"end":"2019-09-30","val":11531000,"accn":"0001564590-19-042125","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-08"},{"end":"2019-09-30","val":11531000,"accn":"0001564590-20-051720","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06","frame":"CY2019Q3I"},{"end":"2019-12-31","val":12056000,"accn":"0001564590-20-009568","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-10"},{"end":"2019-12-31","val":12056000,"accn":"0001564590-20-023337","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-08"},{"end":"2019-12-31","val":12056000,"accn":"0001564590-20-038149","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"end":"2019-12-31","val":12056000,"accn":"0001564590-20-051720","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06","frame":"CY2019Q4I"},{"end":"2020-03-31","val":7308000,"accn":"0001564590-20-023337","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-08","frame":"CY2020Q1I"},{"end":"2020-06-30","val":9221000,"accn":"0001564590-20-038149","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07","frame":"CY2020Q2I"},{"end":"2020-09-30","val":4013000,"accn":"0001564590-20-051720","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06","frame":"CY2020Q3I"}]}},"CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect":{"label":"Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect","description":"Amount of increase (decrease) in cash, cash equivalents, and cash and cash equivalents restricted to withdrawal or usage; including effect from exchange rate change. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits. Cash equivalents include, but are not limited to, short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.","units":{"USD":[{"start":"2017-01-01","end":"2017-12-31","val":-184005000,"accn":"0001564590-20-009568","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-10","frame":"CY2017"},{"start":"2018-01-01","end":"2018-09-30","val":-10812000,"accn":"0001564590-19-042125","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-08"},{"start":"2018-01-01","end":"2018-12-31","val":-11265000,"accn":"0001564590-20-009568","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-10","frame":"CY2018"},{"start":"2019-01-01","end":"2019-03-31","val":1633000,"accn":"0001564590-20-023337","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-08","frame":"CY2019Q1"},{"start":"2019-01-01","end":"2019-06-30","val":3489000,"accn":"0001564590-20-038149","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"start":"2019-01-01","end":"2019-09-30","val":5572000,"accn":"0001564590-19-042125","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-08"},{"start":"2019-01-01","end":"2019-09-30","val":5572000,"accn":"0001564590-20-051720","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"start":"2019-01-01","end":"2019-12-31","val":6097000,"accn":"0001564590-20-009568","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-10","frame":"CY2019"},{"start":"2020-01-01","end":"2020-03-31","val":-4748000,"accn":"0001564590-20-023337","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-08","frame":"CY2020Q1"},{"start":"2020-01-01","end":"2020-06-30","val":-2835000,"accn":"0001564590-20-038149","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"start":"2020-01-01","end":"2020-09-30","val":-8043000,"accn":"0001564590-20-051720","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"}]}},"CashProvidedByUsedInInvestingActivitiesDiscontinuedOperations":{"label":"Cash Provided by (Used in) Investing Activities, Discontinued Operations","description":"Amount of cash inflow (outflow) of investing activities of discontinued operations. Investing activity cash flows include making and collecting loans and acquiring and disposing of debt or equity instruments and property, plant, and equipment and other productive assets.","units":{"USD":[{"start":"2019-01-01","end":"2019-03-31","val":1000,"accn":"0001564590-19-017958","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-09"},{"start":"2019-01-01","end":"2019-03-31","val":1000,"accn":"0001564590-20-023337","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-08","frame":"CY2019Q1"},{"start":"2019-01-01","end":"2019-06-30","val":14000,"accn":"0001564590-19-030753","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-08"},{"start":"2019-01-01","end":"2019-06-30","val":14000,"accn":"0001564590-20-038149","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"start":"2019-01-01","end":"2019-09-30","val":14000,"accn":"0001564590-19-042125","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-08"},{"start":"2019-01-01","end":"2019-09-30","val":14000,"accn":"0001564590-20-051720","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"},{"start":"2019-01-01","end":"2019-12-31","val":26000,"accn":"0001564590-20-009568","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-10","frame":"CY2019"},{"start":"2020-01-01","end":"2020-03-31","val":-66000,"accn":"0001564590-20-023337","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-08","frame":"CY2020Q1"},{"start":"2020-01-01","end":"2020-06-30","val":-82000,"accn":"0001564590-20-038149","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-07"},{"start":"2020-01-01","end":"2020-09-30","val":-82000,"accn":"0001564590-20-051720","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-06"}]}},"CashProvidedByUsedInOperatingActivitiesDiscontinuedOperations":{"label":"Cash Provided by (Used in) Operating Activities, Discontinued Operations","description":"Amount of cash inflow (outflow) of operating activities of discontinued operations. 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Costs incurred in identifying areas that may warrant examination and in examining specific areas that are considered to have prospects of containing oil and gas reserves, including costs of drilling exploratory wells and exploratory-type stratigraphic test wells. Exploration costs may be incurred both before acquiring the related property (sometimes referred to in part as prospecting costs) and after acquiring the property. Principal types of exploration costs, which include depreciation and applicable operating costs of support equipment and facilities and other costs of exploration activities, are: (i) Costs of topographical, geographical and geophysical studies, rights of access to properties to conduct those studies, and salaries and other expenses of geologists, geophysical crews, and others conducting those studies. Collectively, these are sometimes referred to as geological and geophysical or \"\"G&G\"\" costs. 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