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Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.","units":{"USD":[{"end":"2014-01-31","val":8450000,"accn":"0001558370-15-000468","fy":2015,"fp":"FY","form":"10-K","filed":"2015-04-13","frame":"CY2013Q4I"}]}},"LinesOfCreditFairValueDisclosure":{"label":"Lines of Credit, Fair Value Disclosure","description":"Fair 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Issued","description":"The fair value of notes issued in noncash investing and financing activities.","units":{"USD":[{"start":"2014-02-01","end":"2014-07-31","val":1041000,"accn":"0001104659-14-065258","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-09-08"},{"start":"2014-02-01","end":"2014-07-31","val":1041000,"accn":"0001558370-15-001749","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-09-08"},{"start":"2014-02-01","end":"2014-10-31","val":1041000,"accn":"0001104659-14-085219","fy":2015,"fp":"Q3","form":"10-Q","filed":"2014-12-08"},{"start":"2014-02-01","end":"2015-01-31","val":1041000,"accn":"0001558370-15-000468","fy":2015,"fp":"FY","form":"10-K","filed":"2015-04-13","frame":"CY2014"}]}},"NotesPayableCurrent":{"label":"Notes Payable, Current","description":"Sum of the carrying values as of the balance sheet date of the portions of long-term notes payable due within one year or the operating cycle if longer.","units":{"USD":[{"end":"2013-04-30","val":5876000,"accn":"0001104659-13-047780","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-06-10","frame":"CY2013Q1I"},{"end":"2013-07-31","val":5876000,"accn":"0001104659-13-068761","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-09-09","frame":"CY2013Q2I"},{"end":"2013-10-31","val":5876000,"accn":"0001104659-14-030715","fy":2013,"fp":"Q3","form":"10-Q/A","filed":"2014-04-25","frame":"CY2013Q3I"},{"end":"2013-10-31","val":5876000,"accn":"0001104659-13-089153","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-12-09"}]}},"NotesPayableFairValueDisclosure":{"label":"Notes Payable, Fair Value Disclosure","description":"Fair value portion of notes 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NotesPayable":{"label":"Other 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Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.","units":{"USD":[{"end":"2013-01-31","val":32010000,"accn":"0001047469-14-003862","fy":2013,"fp":"FY","form":"10-K","filed":"2014-04-17","frame":"CY2012Q4I"},{"end":"2014-01-31","val":82559000,"accn":"0001047469-14-003862","fy":2013,"fp":"FY","form":"10-K","filed":"2014-04-17"},{"end":"2014-01-31","val":82559000,"accn":"0001558370-15-000468","fy":2015,"fp":"FY","form":"10-K","filed":"2015-04-13","frame":"CY2013Q4I"},{"end":"2015-01-31","val":168858000,"accn":"0001558370-15-000468","fy":2015,"fp":"FY","form":"10-K","filed":"2015-04-13"},{"end":"2015-01-31","val":168858000,"accn":"0001558370-15-001052","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-06-08"},{"end":"2015-01-31","val":168858000,"accn":"0001558370-15-001749","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-09-08"},{"end":"2015-01-31","val":31026000,"accn":"0001558370-16-010433","fy":2017,"fp":"Q3","form":"10-Q","filed":"2016-12-07","frame":"CY2014Q4I"},{"end":"2015-04-30","val":176125000,"accn":"0001558370-15-001052","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-06-08","frame":"CY2015Q1I"},{"end":"2015-07-31","val":179435000,"accn":"0001558370-15-001749","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-09-08","frame":"CY2015Q2I"},{"end":"2016-10-31","val":19416000,"accn":"0001558370-16-010433","fy":2017,"fp":"Q3","form":"10-Q","filed":"2016-12-07","frame":"CY2016Q3I"}]}},"PropertyPlantAndEquipmentNet":{"label":"Property, Plant and Equipment, Net","description":"Amount after accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business to produce goods and services and not intended for resale. 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fixtures.","units":{"USD":[{"end":"2011-01-31","val":22133885,"accn":"0001144204-11-069807","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-12-14","frame":"CY2010Q4I"},{"end":"2011-07-31","val":201682,"accn":"0001144204-11-051623","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-09-07","frame":"CY2011Q2I"},{"end":"2011-10-31","val":132799876,"accn":"0001144204-11-069807","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-12-14","frame":"CY2011Q3I"},{"end":"2012-01-31","val":148645080,"accn":"0001144204-12-050414","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-09-10"},{"end":"2012-01-31","val":148645080,"accn":"0001144204-12-067053","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-12-10"},{"end":"2012-01-31","val":148645080,"accn":"0001104659-13-033642","fy":2012,"fp":"Q3","form":"10-Q/A","filed":"2013-04-26"},{"end":"2012-01-31","val":148645080,"accn":"0001104659-13-035499","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-01","frame":"CY2011Q4I"},{"end":"2012-07-31","val":232556273,"accn":"0001144204-12-050414","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-09-10","frame":"CY2012Q2I"},{"end":"2012-10-31","val":282911678,"accn":"0001144204-12-067053","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-12-10"},{"end":"2012-10-31","val":281022582,"accn":"0001104659-13-033642","fy":2012,"fp":"Q3","form":"10-Q/A","filed":"2013-04-26","frame":"CY2012Q3I"},{"end":"2013-01-31","val":333595154,"accn":"0001104659-13-035499","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-01"},{"end":"2013-01-31","val":333596000,"accn":"0001104659-13-047780","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-06-10"},{"end":"2013-01-31","val":28671000,"accn":"0001047469-14-003862","fy":2013,"fp":"FY","form":"10-K","filed":"2014-04-17","frame":"CY2012Q4I"},{"end":"2013-04-30","val":401718000,"accn":"0001104659-13-047780","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-06-10","frame":"CY2013Q1I"},{"end":"2014-01-31","val":69760000,"accn":"0001047469-14-003862","fy":2013,"fp":"FY","form":"10-K","filed":"2014-04-17"},{"end":"2014-01-31","val":753879000,"accn":"0001558370-15-000468","fy":2015,"fp":"FY","form":"10-K","filed":"2015-04-13","frame":"CY2013Q4I"},{"end":"2015-01-31","val":1261006000,"accn":"0001558370-15-000468","fy":2015,"fp":"FY","form":"10-K","filed":"2015-04-13"},{"end":"2015-01-31","val":1261006000,"accn":"0001558370-15-001052","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-06-08"},{"end":"2015-01-31","val":1261006000,"accn":"0001558370-15-001749","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-09-08"},{"end":"2015-01-31","val":1261006000,"accn":"0001558370-15-002809","fy":2016,"fp":"Q3","form":"10-Q","filed":"2015-12-08"},{"end":"2015-01-31","val":1261006000,"accn":"0001558370-16-004642","fy":2016,"fp":"FY","form":"10-K","filed":"2016-04-14","frame":"CY2014Q4I"},{"end":"2015-04-30","val":1099434000,"accn":"0001558370-15-001052","fy":2016,"fp":"Q1","form":"10-Q","filed":"2015-06-08","frame":"CY2015Q1I"},{"end":"2015-07-31","val":916589000,"accn":"0001558370-15-001749","fy":2016,"fp":"Q2","form":"10-Q","filed":"2015-09-08","frame":"CY2015Q2I"},{"end":"2015-10-31","val":641483000,"accn":"0001558370-15-002809","fy":2016,"fp":"Q3","form":"10-Q","filed":"2015-12-08","frame":"CY2015Q3I"},{"end":"2016-01-31","val":497859000,"accn":"0001558370-16-004642","fy":2016,"fp":"FY","form":"10-K","filed":"2016-04-14"},{"end":"2016-01-31","val":497859000,"accn":"0001558370-16-006307","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-06-08"},{"end":"2016-01-31","val":497859000,"accn":"0001558370-16-008249","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-09-08"},{"end":"2016-01-31","val":431774000,"accn":"0001558370-16-010433","fy":2017,"fp":"Q3","form":"10-Q","filed":"2016-12-07","frame":"CY2015Q4I"},{"end":"2016-04-30","val":414973000,"accn":"0001558370-16-006307","fy":2017,"fp":"Q1","form":"10-Q","filed":"2016-06-08","frame":"CY2016Q1I"},{"end":"2016-07-31","val":67895000,"accn":"0001558370-16-008249","fy":2017,"fp":"Q2","form":"10-Q","filed":"2016-09-08","frame":"CY2016Q2I"},{"end":"2016-10-31","val":11628000,"accn":"0001558370-16-010433","fy":2017,"fp":"Q3","form":"10-Q","filed":"2016-12-07","frame":"CY2016Q3I"}]}},"PropertyPlantAndEquipmentOther":{"label":"Property, Plant and Equipment, Other, Gross","description":"Amount before accumulated depreciation, depletion and amortization of other physical assets used in the normal conduct of business to produce goods and services and not intended for resale.","units":{"USD":[{"end":"2011-10-31","val":5482778,"accn":"0001144204-11-069807","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-12-14","frame":"CY2011Q3I"},{"end":"2012-01-31","val":1226725,"accn":"0001144204-12-067053","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-12-10"},{"end":"2012-01-31","val":1226725,"accn":"0001144204-12-050414","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-09-10"},{"end":"2012-01-31","val":1224675,"accn":"0001144204-12-034059","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-06-11"},{"end":"2012-01-31","val":1224675,"accn":"0001144204-12-030674","fy":2011,"fp":"FY","form":"10-K/A","filed":"2012-05-18"},{"end":"2012-01-31","val":1224675,"accn":"0001144204-12-021598","fy":2011,"fp":"FY","form":"10-K","filed":"2012-04-16"},{"end":"2012-01-31","val":1226725,"accn":"0001104659-13-035499","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-01","frame":"CY2011Q4I"},{"end":"2012-01-31","val":1226725,"accn":"0001104659-13-033642","fy":2012,"fp":"Q3","form":"10-Q/A","filed":"2013-04-26"},{"end":"2012-04-30","val":20148715,"accn":"0001144204-12-034059","fy":2012,"fp":"Q1","form":"10-Q","filed":"2012-06-11","frame":"CY2012Q1I"},{"end":"2012-07-31","val":28599684,"accn":"0001144204-12-050414","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-09-10","frame":"CY2012Q2I"},{"end":"2012-10-31","val":31854365,"accn":"0001144204-12-067053","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-12-10"},{"end":"2012-10-31","val":31854365,"accn":"0001104659-13-033642","fy":2012,"fp":"Q3","form":"10-Q/A","filed":"2013-04-26","frame":"CY2012Q3I"},{"end":"2013-01-31","val":16664000,"accn":"0001104659-13-047780","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-06-10","frame":"CY2012Q4I"},{"end":"2013-01-31","val":36378097,"accn":"0001104659-13-035499","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-01"},{"end":"2013-04-30","val":19953000,"accn":"0001104659-13-047780","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-06-10","frame":"CY2013Q1I"},{"end":"2013-10-31","val":22600000,"accn":"0001104659-14-030715","fy":2013,"fp":"Q3","form":"10-Q/A","filed":"2014-04-25","frame":"CY2013Q3I"},{"end":"2013-10-31","val":22600000,"accn":"0001104659-13-089153","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-12-09"}]}},"PropertyPlantAndEquipmentOwnedGross":{"label":"Property, Plant, and Equipment, Owned, Gross","description":"Gross amount of long-lived, depreciable flight assets owned by the entity and used in the entity's principle business operations (owned aircraft and capitalized improvements) and capitalized assets classified as property, plant and equipment that are owned by the entity. Excludes assets subject to a capital lease.","units":{"USD":[{"end":"2012-01-31","val":1311847,"accn":"0001144204-12-067053","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-12-10"},{"end":"2012-01-31","val":1311847,"accn":"0001144204-12-050414","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-09-10"},{"end":"2012-01-31","val":1311847,"accn":"0001104659-13-035499","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-01","frame":"CY2011Q4I"},{"end":"2012-01-31","val":1311847,"accn":"0001104659-13-033642","fy":2012,"fp":"Q3","form":"10-Q/A","filed":"2013-04-26"},{"end":"2012-07-31","val":29243749,"accn":"0001144204-12-050414","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-09-10","frame":"CY2012Q2I"},{"end":"2012-10-31","val":33765390,"accn":"0001144204-12-067053","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-12-10"},{"end":"2012-10-31","val":33765390,"accn":"0001104659-13-033642","fy":2012,"fp":"Q3","form":"10-Q/A","filed":"2013-04-26","frame":"CY2012Q3I"},{"end":"2013-01-31","val":37996299,"accn":"0001104659-13-035499","fy":2012,"fp":"FY","form":"10-K","filed":"2013-05-01","frame":"CY2012Q4I"}]}},"ProvedDevelopedAndUndevelopedReserveExtensionAndDiscoveryEnergy":{"label":"Proved Developed and Undeveloped Reserve, Extension and Discovery (Energy)","description":"Energy measure of increase in quantity of proved reserve of oil and gas resulting from the extension of the proved acreage of previously discovered reservoir or discovery of new field with proved reserve or of new reservoir of proved reserve in old field, 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":{"MBoe":[{"start":"2013-02-01","end":"2014-01-31","val":15502,"accn":"0001558370-16-004642","fy":2016,"fp":"FY","form":"10-K","filed":"2016-04-14","frame":"CY2013"},{"start":"2014-02-01","end":"2015-01-31","val":17027,"accn":"0001558370-16-004642","fy":2016,"fp":"FY","form":"10-K","filed":"2016-04-14","frame":"CY2014"},{"start":"2015-02-01","end":"2016-01-31","val":8753,"accn":"0001558370-16-004642","fy":2016,"fp":"FY","form":"10-K","filed":"2016-04-14","frame":"CY2015"}]}},"ProvedDevelopedAndUndevelopedReserveNetEnergy":{"label":"Proved Developed and Undeveloped Reserve, Net (Energy)","description":"Energy measure of proved reserve of oil and gas, 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":{"MBoe":[{"end":"2013-01-31","val":14637,"accn":"0001558370-16-004642","fy":2016,"fp":"FY","form":"10-K","filed":"2016-04-14","frame":"CY2012Q4I"},{"end":"2014-01-31","val":40314,"accn":"0001558370-16-004642","fy":2016,"fp":"FY","form":"10-K","filed":"2016-04-14","frame":"CY2013Q4I"},{"end":"2015-01-31","val":58870,"accn":"0001558370-16-004642","fy":2016,"fp":"FY","form":"10-K","filed":"2016-04-14","frame":"CY2014Q4I"},{"end":"2016-01-31","val":48884,"accn":"0001558370-16-004642","fy":2016,"fp":"FY","form":"10-K","filed":"2016-04-14","frame":"CY2015Q4I"}]}},"ProvedDevelopedAndUndevelopedReserveProductionEnergy":{"label":"Proved Developed and Undeveloped Reserve, Production (Energy)","description":"Energy measure of decrease in quantity of proved reserve of oil and gas resulting from production, 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":{"MBoe":[{"start":"2013-02-01","end":"2014-01-31","val":1929,"accn":"0001558370-16-004642","fy":2016,"fp":"FY","form":"10-K","filed":"2016-04-14","frame":"CY2013"},{"start":"2014-02-01","end":"2015-01-31","val":4176,"accn":"0001558370-16-004642","fy":2016,"fp":"FY","form":"10-K","filed":"2016-04-14","frame":"CY2014"},{"start":"2015-02-01","end":"2016-01-31","val":4897,"accn":"0001558370-16-004642","fy":2016,"fp":"FY","form":"10-K","filed":"2016-04-14","frame":"CY2015"}]}},"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":{"MBoe":[{"start":"2013-02-01","end":"2014-01-31","val":8313,"accn":"0001558370-16-004642","fy":2016,"fp":"FY","form":"10-K","filed":"2016-04-14","frame":"CY2013"},{"start":"2014-02-01","end":"2015-01-31","val":4150,"accn":"0001558370-16-004642","fy":2016,"fp":"FY","form":"10-K","filed":"2016-04-14","frame":"CY2014"}]}},"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":{"MBoe":[{"start":"2013-02-01","end":"2014-01-31","val":4344,"accn":"0001558370-16-004642","fy":2016,"fp":"FY","form":"10-K","filed":"2016-04-14","frame":"CY2013"},{"start":"2014-02-01","end":"2015-01-31","val":1558,"accn":"0001558370-16-004642","fy":2016,"fp":"FY","form":"10-K","filed":"2016-04-14","frame":"CY2014"},{"start":"2015-02-01","end":"2016-01-31","val":-13813,"accn":"0001558370-16-004642","fy":2016,"fp":"FY","form":"10-K","filed":"2016-04-14","frame":"CY2015"}]}},"ProvedDevelopedAndUndevelopedReservesNet":{"label":"Proved Developed and Undeveloped Reserves, Net","description":"The net quantity of proved reserves as of the balance sheet date. Proved oil reserves are the estimated quantities of crude oil and natural gas liquids which geological and engineering data demonstrate with reasonable certainty to be recoverable.","units":{"MBbls":[{"end":"2013-07-31","val":18709,"accn":"0001104659-13-068761","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-09-09","frame":"CY2013Q2I"},{"end":"2013-10-31","val":27801,"accn":"0001104659-14-030715","fy":2013,"fp":"Q3","form":"10-Q/A","filed":"2014-04-25","frame":"CY2013Q3I"},{"end":"2013-10-31","val":27801,"accn":"0001104659-13-089153","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-12-09"}],"MMcf":[{"end":"2013-07-31","val":20232,"accn":"0001104659-13-068761","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-09-09","frame":"CY2013Q2I"},{"end":"2013-10-31","val":28368,"accn":"0001104659-14-030715","fy":2013,"fp":"Q3","form":"10-Q/A","filed":"2014-04-25","frame":"CY2013Q3I"},{"end":"2013-10-31","val":28368,"accn":"0001104659-13-089153","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-12-09"}]}},"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":{"MBoe":[{"start":"2013-02-01","end":"2014-01-31","val":553,"accn":"0001558370-16-004642","fy":2016,"fp":"FY","form":"10-K","filed":"2016-04-14","frame":"CY2013"},{"start":"2014-02-01","end":"2015-01-31","val":3,"accn":"0001558370-16-004642","fy":2016,"fp":"FY","form":"10-K","filed":"2016-04-14","frame":"CY2014"},{"start":"2015-02-01","end":"2016-01-31","val":29,"accn":"0001558370-16-004642","fy":2016,"fp":"FY","form":"10-K","filed":"2016-04-14","frame":"CY2015"}]}},"ProvedDevelopedReservesBOE":{"label":"Proved Developed Reserves (BOE) (Deprecated 2013-01-31)","description":"Net quantities of an enterprise's interests in proved developed reserves of either 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 gas as of the beginning and the end of the year. \"Net\" quantities of reserves include those relating to the enterprise's operating and nonoperating interests in properties. Quantities of reserves relating to royalty interests owned are included in \"net\" quantities if the necessary information is available to the enterprise. \"Net\" quantities do not include reserves relating to interests of others in properties owned by the enterprise. Measured in barrel of oil equivalent (BOE).","units":{"item":[{"end":"2013-01-31","val":5969,"accn":"0001104659-13-047780","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-06-10","frame":"CY2012Q4I"},{"end":"2013-04-30","val":7650,"accn":"0001104659-13-047780","fy":2013,"fp":"Q1","form":"10-Q","filed":"2013-06-10","frame":"CY2013Q1I"}],"MBoe":[{"end":"2012-01-31","val":572,"accn":"0001144204-12-067053","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-12-10","frame":"CY2011Q4I"},{"end":"2012-10-31","val":3732,"accn":"0001144204-12-067053","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-12-10","frame":"CY2012Q3I"}],"pure":[{"end":"2012-01-31","val":572,"accn":"0001144204-12-050414","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-09-10","frame":"CY2011Q4I"},{"end":"2012-07-31","val":2643,"accn":"0001144204-12-050414","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-09-10","frame":"CY2012Q2I"}],"territory":[{"end":"2012-01-31","val":572,"accn":"0001104659-13-033642","fy":2012,"fp":"Q3","form":"10-Q/A","filed":"2013-04-26","frame":"CY2011Q4I"},{"end":"2012-10-31","val":3732,"accn":"0001104659-13-033642","fy":2012,"fp":"Q3","form":"10-Q/A","filed":"2013-04-26","frame":"CY2012Q3I"}]}},"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 gas.","units":{"MBoe":[{"end":"2013-01-31","val":5969,"accn":"0001104659-13-068761","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-09-09"},{"end":"2013-01-31","val":5969,"accn":"0001104659-13-089153","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-12-09"},{"end":"2013-01-31","val":5969,"accn":"0001047469-14-003862","fy":2013,"fp":"FY","form":"10-K","filed":"2014-04-17"},{"end":"2013-01-31","val":5969,"accn":"0001104659-14-030715","fy":2013,"fp":"Q3","form":"10-Q/A","filed":"2014-04-25"},{"end":"2013-01-31","val":5969,"accn":"0001558370-16-004642","fy":2016,"fp":"FY","form":"10-K","filed":"2016-04-14","frame":"CY2012Q4I"},{"end":"2013-07-31","val":9857,"accn":"0001104659-13-068761","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-09-09","frame":"CY2013Q2I"},{"end":"2013-10-31","val":14923,"accn":"0001104659-13-089153","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-12-09"},{"end":"2013-10-31","val":14923,"accn":"0001104659-14-030715","fy":2013,"fp":"Q3","form":"10-Q/A","filed":"2014-04-25","frame":"CY2013Q3I"},{"end":"2014-01-31","val":16995,"accn":"0001047469-14-003862","fy":2013,"fp":"FY","form":"10-K","filed":"2014-04-17"},{"end":"2014-01-31","val":16995,"accn":"0001104659-14-044776","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-06-09"},{"end":"2014-01-31","val":16995,"accn":"0001104659-14-065258","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-09-08"},{"end":"2014-01-31","val":16995,"accn":"0001104659-14-085219","fy":2015,"fp":"Q3","form":"10-Q","filed":"2014-12-08"},{"end":"2014-01-31","val":16995,"accn":"0001558370-16-004642","fy":2016,"fp":"FY","form":"10-K","filed":"2016-04-14","frame":"CY2013Q4I"},{"end":"2014-04-30","val":21719,"accn":"0001104659-14-044776","fy":2015,"fp":"Q1","form":"10-Q","filed":"2014-06-09","frame":"CY2014Q1I"},{"end":"2014-07-31","val":30030,"accn":"0001104659-14-065258","fy":2015,"fp":"Q2","form":"10-Q","filed":"2014-09-08","frame":"CY2014Q2I"},{"end":"2014-10-31","val":32595,"accn":"0001104659-14-085219","fy":2015,"fp":"Q3","form":"10-Q","filed":"2014-12-08","frame":"CY2014Q3I"},{"end":"2015-01-31","val":35978,"accn":"0001558370-16-004642","fy":2016,"fp":"FY","form":"10-K","filed":"2016-04-14","frame":"CY2014Q4I"},{"end":"2016-01-31","val":38465,"accn":"0001558370-16-004642","fy":2016,"fp":"FY","form":"10-K","filed":"2016-04-14","frame":"CY2015Q4I"}]}},"ProvedDevelopedReservesVolume":{"label":"Proved Developed Reserves (Volume)","description":"Net quantities of an enterprise's interests in proved developed reserves of either 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 gas as of the beginning and the end of the year. \"Net\" quantities of reserves include those relating to the enterprise's operating and nonoperating interests in properties. Quantities of reserves relating to royalty interests owned are included in \"net\" quantities if the necessary information is available to the enterprise. \"Net\" quantities does not include reserves relating to interests of others in properties owned by the enterprise. 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