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This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. false2Fair Value, Concentration of Risk, Cash and Cash Equivalents3true 2us-gaap_ReceivablesAbstractus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse3falsefalsefalse00falsefalsefalsexbrli:stringItemTypestringfalse0Receivables [Abstract]4false 3us-gaap_OilAndGasJointInterestBillingReceivablesCurrentus-gaap_truedebitinstantfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1truefalsefalse3191400031914falsefalsefalse2falsefalsefalse00falsefalsefalse3truefalsefalse1928200019282falsefalsefalsexbrli:monetaryItemTypemonetaryCurrent portion of accounts receivable attributable to joint interest partners in oil and gas properties. 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