us-gaap |
Accounts Receivable, after Allowance for Credit Loss, Current |
Amount, after allowance for credit loss, of right to consideration from customer for product sold and service rendered in normal course of business, classified as current. |
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us-gaap |
Accrued Liabilities, Current |
Carrying value as of the balance sheet date of obligations incurred and payable, pertaining to costs that are statutory in nature, are incurred on contractual obligations, or accumulate over time and for which invoices have not yet been received or will not be rendered. Examples include taxes, interest, rent and utilities. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer). |
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us-gaap |
Accumulated Other Comprehensive Income (Loss), Net of Tax |
Accumulated change in equity from transactions and other events and circumstances from non-owner sources, net of tax effect, at period end. Excludes Net Income (Loss), and accumulated changes in equity from transactions resulting from investments by owners and distributions to owners. Includes foreign currency translation items, certain pension adjustments, unrealized gains and losses on certain investments in debt and equity securities, other than temporary impairment (OTTI) losses related to factors other than credit losses on available-for-sale and held-to-maturity debt securities that an entity does not intend to sell and it is not more likely than not that the entity will be required to sell before recovery of the amortized cost basis, as well as changes in the fair value of derivatives related to the effective portion of a designated cash flow hedge. |
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us-gaap |
Asset Retirement Obligation |
The carrying amount of a liability for an asset retirement obligation. An asset retirement obligation is a legal obligation associated with the disposal or retirement of a tangible long-lived asset that results from the acquisition, construction or development, or the normal operations of a long-lived asset, except for certain obligations of lessees. |
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us-gaap |
Asset Retirement Obligation, Cash Paid to Settle |
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. |
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us-gaap |
Asset Retirement Obligation, Current |
Current portion of the carrying amount of a liability for an asset retirement obligation. An asset retirement obligation is a legal obligation associated with the disposal or retirement of a tangible long-lived asset that results from the acquisition, construction or development, or the normal operations of a long-lived asset, except for certain obligations of lessees. |
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us-gaap |
Asset Retirement Obligation, Foreign Currency Translation (Deprecated 2016-01-31) |
Amount of the Increase or Decrease in the amount of asset retirement obligations for the period associated with foreign currency translation (to the extent that the entity accounts for the foreign currency effects as a separate component of the change in the liability). |
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us-gaap |
Available-for-sale Securities, Fair Value Disclosure (Deprecated 2013-01-31) |
This element represents the portion of the balance sheet assertion valued at fair value by the entity whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission. This item represents Available-for-sale Securities which consist of all investments in certain debt and equity securities neither classified as trading or held-to-maturity securities. A debt security represents a creditor relationship with an enterprise. Debt securities include, among other items, US Treasury securities, US government securities, municipal securities, corporate bonds, convertible debt, commercial paper, and all securitized debt instruments. An equity security represents an ownership interest in an enterprise or the right to acquire or dispose of an ownership interest in an enterprise at fixed or determinable prices. Equity securities include, among other things, common stock, certain preferred stock, warrant rights, call options, and put options, but do not include convertible debt. An entity may opt to provide the reader with additional narrative text to better understand the nature of investments in debt and equity securities which are categorized as Available-for-sale. |
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us-gaap |
Available-for-sale Securities, Noncurrent |
Investments in debt and equity securities which are categorized neither as held-to-maturity nor trading and which are intended to be sold or mature more than one year from the balance sheet date or operating cycle, if longer. Such securities are reported at fair value; unrealized gains (losses) related to Available-for-sale Securities are excluded from earnings and reported in a separate component of shareholders' equity (other comprehensive income), unless the Available-for-sale security is designated as a hedge or is determined to have had an other than temporary decline in fair value below its amortized cost basis. All or a portion of the unrealized holding gain (loss) of an Available-for-sale security that is designated as being hedged in a fair value hedge is recognized in earnings during the period of the hedge, as are other than temporary declines in fair value below the cost basis for investments in equity securities and debt securities that an entity intends to sell or it is more likely than not that it will be required to sell before the recovery of its amortized cost basis. Other than temporary declines in fair value below the cost basis for debt securities categorized as Available-for-sale that an entity does not intend to sell and for which it is not more likely than not that the entity will be required to sell before the recovery of its amortized cost basis are bifurcated into credit losses and losses related to all other factors. Other than temporary declines in fair value below cost basis related to credit losses are recognized in earnings, and losses related to all other factors are recognized in other comprehensive income. |
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us-gaap |
Capital Leases, Future Minimum Payments Due, Next Twelve Months |
Amount of minimum lease payments for capital leases due in the next fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. |
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us-gaap |
Capital Leases, Net Investment in Direct Financing and Sales Type Leases |
The lessor's asset under sales type and direct financing leases. The net investment in direct financing and sales-type leases as of the balance sheet date consisting of: (a) minimum lease payments due on direct financing leases, (b) unguaranteed residual value, and (c) any unamortized initial direct costs on direct financing leases; less: (i) estimated executory costs, (ii) unearned income, and (iii) the accumulated allowance for uncollectible minimum lease payments. |
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us-gaap |
Costs Incurred, Oil and Gas Property Acquisition, Exploration, and Development Activities |
Amount of costs incurred related to oil and gas property acquisition, exploration and development activities, including capitalized costs and costs charged to expense. |
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us-gaap |
Depreciation |
The amount of expense recognized in the current period that reflects the allocation of the cost of tangible assets over the assets' useful lives. Includes production and non-production related depreciation. |
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us-gaap |
Derivative, Fair Value, Amount Offset Against Collateral, Net |
The net amount as of the balance sheet date of the fair value of derivative assets and derivative liabilities that in accordance with the entity's accounting policy were offset against collateral under a master netting arrangement. |
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us-gaap |
Derivative Asset, Fair Value, Gross Asset |
Fair value, before effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes assets elected not to be offset. Excludes assets not subject to a master netting arrangement. |
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us-gaap |
Derivative Asset, Fair Value, Amount Not Offset Against Collateral |
Fair value, after offset of derivative liability, of financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset, before offset against an obligation to return collateral under a master netting arrangement. Includes assets elected not to be offset. Excludes assets not subject to a master netting arrangement. |
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us-gaap |
Derivative, Fair Value, Net |
Fair value of the assets less the liabilities of a derivative or group of derivatives. |
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us-gaap |
Derivative, Gain (Loss) on Derivative, Net |
Amount of increase (decrease) in the fair value of derivatives recognized in the income statement. |
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us-gaap |
Derivative Instruments, Gain (Loss) Recognized in Income, Net (Deprecated 2013-01-31) |
The amount of net gains and losses recognized in income during the period on derivative instruments designated and qualifying as hedging instruments in fair value hedges and related hedged items designated and qualifying in fair value hedges, on derivative instruments designated and qualifying as hedging instruments in cash flow hedges, and on derivative instruments not designated as hedging instruments. |
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us-gaap |
Discontinued Operation, Income (Loss) from Discontinued Operation, before Income Tax |
Amount before tax of income (loss) from a discontinued operation. Includes, but is not limited to, the income (loss) from operations during the phase-out period, gain (loss) on disposal, gain (loss) for reversal of write-down (write-down) to fair value, less cost to sell, and adjustments to a prior period gain (loss) on disposal. |
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us-gaap |
Earnings Per Share, Basic and Diluted |
The amount of net income or loss for the period per each share in instances when basic and diluted earnings per share are the same amount and reported as a single line item on the face of the financial statements. Basic earnings per share is the amount of net income or loss for the period per each share of common stock or unit outstanding during the reporting period. Diluted earnings per share includes the amount of net income or loss for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period. |
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us-gaap |
Exploration Costs, Period Cost |
"The capitalized costs incurred during the period (excluded from amortization) 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: 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. Exploration costs also include costs of carrying and retaining undeveloped properties, such as delay rentals, ad valorem taxes on properties, legal costs for title defense, the maintenance of land and lease records, dry hole contributions and bottom hole contributions, costs of drilling and equipping exploratory wells and costs of drilling exploratory-type stratigraphic test wells." |
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us-gaap |
Exploration Expense |
"Exploration expenses (including prospecting) related to oil and gas producing entities and would be included in operating expenses of that entity. 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. (ii) Costs of carrying and retaining undeveloped properties, such as delay rentals, ad valorem taxes on properties, legal costs for title defense, and the maintenance of land and lease records. (iii) Dry hole contributions and bottom hole contributions. (iv) Costs of drilling and equipping exploratory wells. (v) Costs of drilling exploratory-type stratigraphic test wells." |
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us-gaap |
Future Net Cash Flows Relating to Proved Oil and Gas Reserves, Ten Percent Annual Discount for Estimated Timing of Cash Flows |
Amount of discount on future accumulated cash inflow, after deducting future accumulated cash outflow for development and production costs and future income tax, from sale of proved oil and gas reserves, using a discount rate of ten percent a year. |
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us-gaap |
Income (Loss) from Discontinued Operations, Net of Tax, Including Portion Attributable to Noncontrolling Interest |
Amount after tax of income (loss) from a discontinued operation including the portion attributable to the noncontrolling interest. Includes, but is not limited to, the income (loss) from operations during the phase-out period, gain (loss) on disposal, gain (loss) for reversal of write-down (write-down) to fair value, less cost to sell, and adjustments to a prior period gain (loss) on disposal. |
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us-gaap |
Effective Income Tax Rate Reconciliation, Nondeductible Expense, Amount |
Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to nondeductible expenses. |
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us-gaap |
Effective Income Tax Rate Reconciliation, Other Adjustments, Amount |
Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to other adjustments. |
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us-gaap |
Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Amount |
Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to state and local income tax expense (benefit). |
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us-gaap |
Increase (Decrease) in Restricted Cash |
The net cash inflow or outflow for the increase (decrease) associated with funds that are not available for withdrawal or use (such as funds held in escrow) and are associated with underlying transactions that are classified as investing activities. |
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us-gaap |
Interest Paid, Including Capitalized Interest, Operating and Investing Activities |
Amount of cash paid for interest, including, but not limited to, capitalized interest and payment to settle zero-coupon bond attributable to accreted interest of debt discount and debt instrument with insignificant coupon interest rate in relation to effective interest rate of borrowing attributable to accreted interest of debt discount; classified as operating and investing activities. |
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us-gaap |
Long-term Debt, Current Maturities |
Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt, classified as current. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations. |
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us-gaap |
Net Income (Loss) Available to Common Stockholders, Basic |
Amount, after deduction of tax, noncontrolling interests, dividends on preferred stock and participating securities; of income (loss) available to common shareholders. |
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us-gaap |
Oil and Gas Property, Successful Effort Method, Net |
Oil and gas properties net of accumulated depreciation, depletion, amortization, impairment, and abandonment, carried under the successful effort method. |
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us-gaap |
Oil and Gas Sales Revenue (Deprecated 2018-01-31) |
Revenue from the sale of oil and gas during the period. |
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us-gaap |
Operating Expenses |
Generally recurring costs associated with normal operations except for the portion of these expenses which can be clearly related to production and included in cost of sales or services. Includes selling, general and administrative expense. |
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us-gaap |
Operating Leases, Future Minimum Payments, Due in Three Years |
Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in the third fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. |
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us-gaap |
Other Significant Noncash Transaction, Value of Consideration Received |
"The value of the noncash (or part noncash) consideration received in a transaction. Noncash is defined as transactions during a period that do not result in cash receipts or cash payments in the period. ""Part noncash"" refers to that portion of a transaction not resulting in cash receipts or cash payments in the period." |
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us-gaap |
Proceeds from Sales of Assets, Investing Activities |
Aggregate cash proceeds received from a combination of transactions that are classified as investing activities in which assets, which may include one or more investments, are sold to third-party buyers. This element can be used by entities to aggregate proceeds from all asset sales that are classified as investing activities. |
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us-gaap |
Production Costs, Period Cost |
The capitalized costs incurred during the period (excluded from amortization) to operate and maintain wells and related equipment and facilities, including depreciation and applicable operating costs of support equipment and facilities and other costs of operating and maintaining those wells and related equipment and facilities. They become part of the cost of oil and gas produced. Examples of production costs (sometimes called lifting costs) are: costs of labor to operate the wells and related equipment and facilities; repairs and maintenance; materials, supplies, and fuel consumed and supplies utilized in operating the wells and related equipment and facilities; property taxes and insurance applicable to proved properties and wells and related equipment and facilities; severance taxes; some support equipment or facilities may serve two or more oil and gas producing activities and may also serve transportation, refining, and marketing activities. To the extent that the support equipment and facilities are used in oil and gas producing activities, their depreciation and applicable operating costs become exploration, development or production costs, as appropriate. Depreciation, depletion, and amortization of capitalized acquisition, exploration, and development costs are not production costs but also become part of the cost of oil and gas produced along with production (lifting) costs identified above. |
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us-gaap |
Restricted Cash and Cash Equivalents, Current |
Amount of cash and cash equivalents restricted as to withdrawal or usage, classified as current. 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. |
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us-gaap |
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Term (Deprecated 2012-01-31) |
The period of time an equity-based award is expected to be outstanding. An equity-based award's expected term is generally determined based on, among other factors, the instrument's contractual term and the effects of employees' expected exercise and post-vesting employment termination behavior. |
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us-gaap |
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility Rate, Maximum |
The estimated measure of the maximum percentage by which a share price is expected to fluctuate during a period. Volatility also may be defined as a probability-weighted measure of the dispersion of returns about the mean. The volatility of a share price is the standard deviation of the continuously compounded rates of return on the share over a specified period. That is the same as the standard deviation of the differences in the natural logarithms of the stock prices plus dividends, if any, over the period. |
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us-gaap |
Stock Issued During Period, Value, Issued for Services |
Value of stock issued in lieu of cash for services contributed to the entity. Value of the stock issued includes, but is not limited to, services contributed by vendors and founders. |
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us-gaap |
Temporary Equity, Carrying Amount (Deprecated 2012-01-31) |
The carrying value (book value) of an entity's issued and outstanding stock which is not included within permanent equity in Stockholders Equity. Temporary equity is a security with redemption features that are outside the control of the issuer, is not classified as an asset or liability in conformity with GAAP, and is not mandatorily redeemable. Includes any type of security that is redeemable at a fixed or determinable price or on a fixed or determinable date or dates, is redeemable at the option of the holder, or has conditions for redemption which are not solely within the control of the issuer. If convertible, the issuer does not control the actions or events necessary to issue the maximum number of shares that could be required to be delivered under the conversion option if the holder exercises the option to convert the stock to another class of equity. If the security is a warrant or a rights issue, the warrant or rights issue is considered to be temporary equity if the issuer cannot demonstrate that it would be able to deliver upon the exercise of the option by the holder in all cases. Includes stock with a put option held by an ESOP and stock redeemable by a holder only in the event of a change in control of the issuer. |
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us-gaap |
Unrecognized Tax Benefits, Increase Resulting from Current Period Tax Positions |
Amount of increase in unrecognized tax benefits resulting from tax positions that have been or will be taken in current period tax return. |
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us-gaap |
Deferred Tax Liabilities, Net, Current |
Amount, after deferred tax asset, of deferred tax liability attributable to taxable differences, with jurisdictional netting and classified as current. |
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us-gaap |
Deferred Tax Liabilities, Net, Noncurrent |
Amount, after deferred tax asset, of deferred tax liability attributable to taxable differences, with jurisdictional netting and classified as noncurrent. |
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us-gaap |
Deferred Tax Liabilities, Other |
Amount of deferred tax liability attributable to taxable temporary differences classified as other. |
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us-gaap |
Deferred Tax Liabilities, Property, Plant and Equipment |
Amount of deferred tax liability attributable to taxable temporary differences from property, plant, and equipment. |
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us-gaap |
Net Income (Loss) Attributable to Noncontrolling Interest |
Amount of Net Income (Loss) attributable to noncontrolling interest. |
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us-gaap |
Unrealized Gain (Loss) on Securities |
Amount of unrealized gain (loss) recognized in the income statement on unsold other securities. |
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us-gaap |
Unrecognized Tax Benefits |
Amount of unrecognized tax benefits. |
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us-gaap |
Unrecognized Tax Benefits, Decrease Resulting from Settlements with Taxing Authorities |
Amount of decrease in unrecognized tax benefits resulting from settlements with taxing authorities. |
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us-gaap |
Proceeds from (Repayments of) Other Long-term Debt |
Amount of cash inflow (outflow) from other long-term debt. |
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us-gaap |
Proceeds from Sale of Equity Method Investments |
The cash inflow associated with the sale of equity method investments, which are investments in joint ventures and entities in which the entity has an equity ownership interest normally of 20 to 50 percent and exercises significant influence. |
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us-gaap |
Proceeds from Sale of Other Productive Assets |
Amount of cash inflow from the sale of tangible or intangible assets used to produce goods or deliver services, classified as other. |
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us-gaap |
Stock Issued During Period, Value, Conversion of Convertible Securities |
The gross value of stock issued during the period upon the conversion of convertible securities. |
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us-gaap |
Costs Incurred, Asset Retirement Obligation Incurred |
Amount of asset retirement obligations (ARO) costs incurred (whether capitalized or charged to expense) during the period. |
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us-gaap |
Costs Incurred, Development Costs |
Development costs incurred, including capitalized costs and costs charged to expense, in oil and gas activities. |
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us-gaap |
Costs Incurred, Exploration Costs |
Exploration costs incurred, including capitalized costs and costs charged to expense, in oil and gas activities. |
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us-gaap |
Accounts Payable, Related Parties, Current |
Amount for accounts payable to related parties. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer). |
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dei |
Entity Common Stock, Shares Outstanding |
Indicate number of shares or other units outstanding of each of registrant's classes of capital or common stock or other ownership interests, if and as stated on cover of related periodic report. Where multiple classes or units exist define each class/interest by adding class of stock items such as Common Class A [Member], Common Class B [Member] or Partnership Interest [Member] onto the Instrument [Domain] of the Entity Listings, Instrument. |
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dei |
Entity Public Float |
The aggregate market value of the voting and non-voting common equity held by non-affiliates computed by reference to the price at which the common equity was last sold, or the average bid and asked price of such common equity, as of the last business day of the registrant's most recently completed second fiscal quarter. |
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us-gaap |
Accounts Payable, Current |
Carrying value as of the balance sheet date of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer). |
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us-gaap |
Accounts Payable, Other, Current |
Amount of obligations incurred classified as other, payable within one year or the normal operating cycle, if longer. |
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us-gaap |
Net Income (Loss) Attributable to Parent |
The portion of profit or loss for the period, net of income taxes, which is attributable to the parent. |
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us-gaap |
Accretion of Discount (Deprecated 2016-01-31) |
Amount of increase (decrease) in standardized measure of discounted future net cash flow as a result of passage of time. |
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us-gaap |
Accumulated Amortization, Debt Issuance Costs, Noncurrent |
Amount of accumulated amortization of debt issuance costs classified as noncurrent. |
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us-gaap |
Acquired Finite-lived Intangible Asset, Amount (Deprecated 2013-01-31) |
The aggregate amount assigned to a major class of finite-lived intangible assets acquired either individually or as part of a group of assets (in either an asset acquisition or business combination). A major class is composed of intangible assets that can be grouped together because they are similar, either by their nature or by their use in the operations of a company. |
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us-gaap |
Additional Paid in Capital |
Excess of issue price over par or stated value of the entity's capital stock and amounts received from other transactions involving the entity's stock or stockholders. Includes adjustments to additional paid in capital. Some examples of such adjustments include recording the issuance of debt with a beneficial conversion feature and certain tax consequences of equity instruments awarded to employees. Use this element for the aggregate amount of additional paid-in capital associated with common and preferred stock. For additional paid-in capital associated with only common stock, use the element additional paid in capital, common stock. For additional paid-in capital associated with only preferred stock, use the element additional paid in capital, preferred stock. |
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us-gaap |
Share-based Payment Arrangement, Decrease for Tax Withholding Obligation |
Amount of decrease to equity for grantee's tax withholding obligation for award under share-based payment arrangement. |
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us-gaap |
APIC, Share-based Payment Arrangement, Option, Increase for Cost Recognition |
Amount of increase to additional paid-in capital (APIC) for recognition of cost for option under share-based payment arrangement. |
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us-gaap |
Adjustments to Additional Paid in Capital, Stock Issued, Issuance Costs |
Amount of decrease in additional paid in capital (APIC) resulting from direct costs associated with issuing stock. Includes, but is not limited to, legal and accounting fees and direct costs associated with stock issues under a shelf registration. |
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us-gaap |
Adjustments to Additional Paid in Capital, Warrant Issued |
Amount of increase in additional paid in capital (APIC) resulting from the issuance of warrants. Includes allocation of proceeds of debt securities issued with detachable stock purchase warrants. |
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us-gaap |
Adjustment to Additional Paid in Capital, Income Tax Effect from Share-based Compensation, Net |
Amount of increase (decrease) in additional paid in capital (APIC) resulting from a tax benefit (deficiency) associated with an share-based compensation plan other than an employee stock ownership plan (ESOP). |
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us-gaap |
Aggregate Indebtedness (Deprecated 2019-01-31) |
Total current liabilities of the broker-dealer, less certain exceptions as defined. |
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us-gaap |
Share-based Payment Arrangement, Expense |
Amount of expense for award under share-based payment arrangement. Excludes amount capitalized. |
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us-gaap |
Accounts Receivable, Allowance for Credit Loss |
Amount of allowance for credit loss on accounts receivable. |
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us-gaap |
Accounts Receivable, Allowance for Credit Loss, Current |
Amount of allowance for credit loss on accounts receivable, classified as current. |
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us-gaap |
Amortization of Debt Issuance Costs |
Amount of amortization expense attributable to debt issuance costs. |
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us-gaap |
Amortization of Debt Issuance Costs and Discounts |
Amount of amortization expense attributable to debt discount (premium) and debt issuance costs. |
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us-gaap |
Amortization of Intangible Assets |
The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method. |
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us-gaap |
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount |
Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented. |
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us-gaap |
Asset Impairment Charges |
Amount of write-down of assets recognized in the income statement. Includes, but is not limited to, losses from tangible assets, intangible assets and goodwill. |
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us-gaap |
Asset Retirement Obligation, Accretion Expense |
Amount of accretion expense recognized during the period that is associated with an asset retirement obligation. Accretion expense measures and incorporates changes due to the passage of time into the carrying amount of the liability. |
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us-gaap |
Asset Retirement Obligation, Liabilities Incurred |
Amount of asset retirement obligations incurred during the period. |
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us-gaap |
Asset Retirement Obligation, Liabilities Settled |
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. |
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us-gaap |
Asset Retirement Obligation, Revision of Estimate |
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. |
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us-gaap |
Asset Retirement Obligations, Noncurrent |
Noncurrent portion of the carrying amount of a liability for an asset retirement obligation. An asset retirement obligation is a legal obligation associated with the disposal or retirement of a tangible long-lived asset that results from the acquisition, construction or development, or the normal operations of a long-lived asset, except for certain obligations of lessees. |
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us-gaap |
Assets |
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 events. |
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us-gaap |
Assets, Current |
Sum of the carrying amounts as of the balance sheet date of all assets that are expected to be realized in cash, sold, or consumed within one year (or the normal operating cycle, if longer). Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events. |
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us-gaap |
Assets Held-for-sale, Current (Deprecated 2014-01-31) |
Current assets (normally turning over within one year or one business cycle if longer) that are held for sale apart from normal operations and anticipated to be sold within one year. |
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us-gaap |
Assets Held-for-sale, Long Lived (Deprecated 2014-01-31) |
Long-lived assets that are held for sale apart from normal operations and anticipated to be sold in less than one year. |
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us-gaap |
Assets Held-for-sale, Other, Noncurrent (Deprecated 2014-01-31) |
Other assets that are held for sale apart from normal operations, not otherwise included elsewhere in the taxonomy and which are anticipated to be sold in less than one year, but by their nature which are not considered current (originally classified based on not being realized or converted to working capital within one year of the date of the statement of financial position or operating cycle, if longer). |
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us-gaap |
Available-for-sale Equity Securities, Amortized Cost Basis |
This item represents the cost of equity securities, which are categorized neither as held-to-maturity nor trading, net of adjustments for other-than-temporary impairments recognized in earnings (less any cumulative-effect adjustments recognized, as defined), and fair value hedge accounting adjustments, if any. |
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us-gaap |
Available-for-sale Equity Securities, Gross Unrealized Loss |
Amount of unrealized loss before deducting unrealized gain on investments in available-for-sale equity securities. |
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us-gaap |
Available-for-sale Securities |
Amount of investment in debt and equity securities categorized neither as held-to-maturity nor trading. |
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us-gaap |
Available-for-sale Securities, Current |
Amount of investment in debt and equity securities categorized neither as trading securities nor held-to-maturity securities and intended be sold or mature one year or operating cycle, if longer. |
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us-gaap |
Available-for-sale Securities, Equity Securities |
Amount of equity securities categorized neither as held-to-maturity nor as trading. |
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us-gaap |
Capitalized Costs, Uncompleted Wells, Equipment and Facilities |
Capitalized costs of which include those incurred to (1) drill and equip wells that are not yet completed (2) acquire or construct equipment and facilities that are not yet installed. |
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us-gaap |
Capitalized Costs, Wells and Related Equipment and Facilities |
Capitalized costs which include those incurred to (1) to drill and equip those exploratory wells and exploratory-type stratigraphic test wells that have found proved reserves and (2) obtain access to proved reserves and provide facilities for extracting, treating, gathering, storing the oil and gas, including the drilling and equipping of development wells and development-type stratigraphic wells and service wells. |
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us-gaap |
Deferred Tax Liabilities, Net |
Amount, after deferred tax asset, of deferred tax liability attributable to taxable differences without jurisdictional netting. |
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us-gaap |
Business Acquisition, Cost of Acquired Entity, Cash Paid (Deprecated 2013-01-31) |
Amount of cash paid to acquire the entity. |
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us-gaap |
Business Acquisition, Cost of Acquired Entity, Equity Interests Issued and Issuable (Deprecated 2013-01-31) |
The acquisition-date fair value of the equity interests of the acquirer, including the number of instruments or interests issued or issuable in consideration for the business combination. |
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us-gaap |
Business Acquisition, Cost of Acquired Entity, Purchase Price (Deprecated 2013-01-31) |
The total cost of the acquired entity including the cash paid to shareholders of acquired entities, fair value of debt and equity securities issued to shareholders of acquired entities, the fair value of the liabilities assumed, and direct costs of the acquisition. |
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us-gaap |
Business Acquisition, Purchase Price Allocation, Goodwill Amount (Deprecated 2013-01-31) |
Amount of goodwill arising from a business combination, which is the excess of the cost of the acquired entity over the amounts assigned to assets acquired and liabilities assumed. |
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us-gaap |
Business Acquisition, Pro Forma Net Income (Loss) |
The pro forma net Income or Loss for the period as if the business combination or combinations had been completed at the beginning of a period. |
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us-gaap |
Business Acquisition, Pro Forma Revenue |
The pro forma revenue for a period as if the business combination or combinations had been completed at the beginning of the period. |
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us-gaap |
Business Combination, Acquisition Related Costs |
This element represents acquisition-related costs incurred to effect a business combination which costs have been expensed during the period. Such costs include finder's fees; advisory, legal, accounting, valuation, and other professional or consulting fees; general administrative costs, including the costs of maintaining an internal acquisitions department; and may include costs of registering and issuing debt and equity securities. |
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us-gaap |
Capital Expenditures Incurred but Not yet Paid |
Future cash outflow to pay for purchases of fixed assets that have occurred. |
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us-gaap |
Capitalized Costs, Accumulated Depreciation, Depletion, Amortization and Valuation Allowance Relating to Oil and Gas Producing Activities |
Amount of accumulated depreciation, depletion, amortization and valuation allowance relating to oil and gas producing activities. |
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us-gaap |
Capitalized Costs, Mineral Interests in Proved Properties |
Capitalized costs of proved properties that include fee ownership or a lease, concession, or other interest representing the right to extract oil or gas subject to such terms as may be imposed by the conveyance of that interest. |
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us-gaap |
Capitalized Costs, Mineral Interests in Unproved Properties |
Capitalized costs of unproven properties that include fee ownership or a lease, concession, or other interest representing the right to extract oil or gas subject to such terms as may be imposed by the conveyance of that interest. |
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us-gaap |
Capitalized Costs, Oil and Gas Producing Activities, Gross |
The sum of capitalized costs relating to oil and gas producing activities before accounting for accumulated depreciation. |
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us-gaap |
Capitalized Costs, Oil and Gas Producing Activities, Net |
Net amount of capitalized costs relating to oil and gas producing activities. |
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us-gaap |
Costs Incurred, Acquisition of Unproved Oil and Gas Properties |
Costs incurred, including capitalized costs and costs charged to expense, associated with the acquisition of oil and gas properties that have unproved reserves. |
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us-gaap |
Cash Acquired from Acquisition |
The cash inflow associated with the acquisition of business during the period (for example, cash that was held by the acquired business). |
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us-gaap |
Cash and Cash Equivalents, at Carrying Value |
Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes 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. Excludes cash and cash equivalents within disposal group and discontinued operation. |
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us-gaap |
Cash and Cash Equivalents, Period Increase (Decrease) |
Amount of increase (decrease) in cash and cash equivalents. Cash and cash equivalents are the amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes 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. Includes effect from exchange rate changes. |
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us-gaap |
Cash Divested from Deconsolidation |
Reduction in cash due to no longer including the former subsidiary's cash in the consolidated entity's cash. |
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us-gaap |
Class of Warrant or Right, Exercise Price of Warrants or Rights (Deprecated 2014-01-31) |
Exercise price per share or per unit of warrants or rights outstanding. |
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us-gaap |
Common Stock, Par or Stated Value Per Share |
Face amount or stated value per share of common stock. |
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us-gaap |
Common Stock, Shares Authorized |
The maximum number of common shares permitted to be issued by an entity's charter and bylaws. |
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us-gaap |
Common Stock, Shares, Issued |
Total number of common shares of an entity that have been sold or granted to shareholders (includes common shares that were issued, repurchased and remain in the treasury). These shares represent capital invested by the firm's shareholders and owners, and may be all or only a portion of the number of shares authorized. Shares issued include shares outstanding and shares held in the treasury. |
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us-gaap |
Common Stock, Shares, Outstanding |
Number of shares of common stock outstanding. Common stock represent the ownership interest in a corporation. |
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us-gaap |
Common Stock, Value, Issued |
Aggregate par or stated value of issued nonredeemable common stock (or common stock redeemable solely at the option of the issuer). This item includes treasury stock repurchased by the entity. Note: elements for number of nonredeemable common shares, par value and other disclosure concepts are in another section within stockholders' equity. |
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us-gaap |
Comprehensive Income (Loss), Net of Tax, Attributable to Parent |
Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income, attributable to parent entity. Excludes changes in equity resulting from investments by owners and distributions to owners. |
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us-gaap |
Comprehensive Income (Loss), Net of Tax, Attributable to Noncontrolling Interest |
Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income (loss) and other comprehensive income (loss), attributable to noncontrolling interests. Excludes changes in equity resulting from investments by owners and distributions to owners. |
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us-gaap |
Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest |
Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income. Excludes changes in equity resulting from investments by owners and distributions to owners. |
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us-gaap |
Contract Revenue Cost (Deprecated 2018-01-31) |
Costs incurred and are directly related to generating contract revenues. |
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us-gaap |
Contracts Revenue (Deprecated 2018-01-31) |
Amount of revenue earned from products sold or services provided under the terms of a contract, including, but not limited to, government contracts and construction contracts, classified as other. |
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us-gaap |
Conversion of Stock, Amount Converted |
"The value of the stock converted in a noncash (or part noncash) transaction. Noncash is defined as transactions during a period that do not result in cash receipts or cash payments in the period. ""Part noncash"" refers to that portion of the transaction not resulting in cash receipts or cash payments in the period." |
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us-gaap |
Cost Method Investments, Fair Value Disclosure |
Fair value portion of investments accounted under the cost method. |
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us-gaap |
Cost of Services, Oil and Gas (Deprecated 2019-01-31) |
Costs of generating revenue from oil and gas-related services including well services (such as drilling, rigs and analytic evaluations), transportation, and other supporting contractor services, during the reporting period. |
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us-gaap |
Costs and Expenses |
Total costs of sales and operating expenses for the period. |
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us-gaap |
Costs Incurred, Acquisition of Oil and Gas Properties with Proved Reserves |
Costs incurred, including capitalized costs and costs charged to expense, associated with the acquisition of oil and gas properties that have proved reserves. |
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us-gaap |
Current Income Tax Expense (Benefit) |
Amount of current income tax expense (benefit) pertaining to taxable income (loss) from continuing operations. |
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us-gaap |
Current State and Local Tax Expense (Benefit) |
Amount of current state and local tax expense (benefit) pertaining to income (loss) from continuing operations. |
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us-gaap |
Long-term Debt, Gross |
Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt. |
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us-gaap |
Debt Instrument, Convertible, Conversion Price |
The price per share of the conversion feature embedded in the debt instrument. |
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us-gaap |
Debt Instrument, Interest Rate During Period |
The average effective interest rate during the reporting period. |
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us-gaap |
Debt Instrument, Interest Rate, Stated Percentage |
Contractual interest rate for funds borrowed, under the debt agreement. |
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us-gaap |
Debtor-in-Possession Financing, Borrowings Outstanding |
Amount of debtor-in-possession borrowings outstanding. |
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us-gaap |
Debtor Reorganization Items, Legal and Advisory Professional Fees |
Amount of reorganization items related to legal and advisory professional fees related to entities in bankruptcy. |
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us-gaap |
Deconsolidation, Gain (Loss), Amount |
Amount of gain (loss) from deconsolidation of subsidiary and derecognition of group of assets constituting transfer of business or nonprofit activity, excluding conveyance of oil and gas mineral rights and transfer of good or service in contract with customer. |
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us-gaap |
Deconsolidation, Revaluation of Retained Investment, Gain (Loss), Amount |
Amount of gain (loss) from remeasurement to fair value of retained investment in former subsidiary and group of assets constituting business or nonprofit activity deconsolidated and derecognized, excluding conveyance of oil and gas mineral rights and transfer of product or service in contract with customer. |
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us-gaap |
Decrease Due to Sales of Minerals in Place |
Amount of decrease in standardized measure of discounted future net cash flow as a result of sales of minerals in place. |
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us-gaap |
Deferred Federal Income Tax Expense (Benefit) |
Amount of deferred federal income tax expense (benefit) pertaining to income (loss) from continuing operations. |
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us-gaap |
Debt Issuance Costs, Noncurrent, Net |
Amount, after accumulated amortization, of debt issuance costs classified as noncurrent. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs. |
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us-gaap |
Deferred Foreign Income Tax Expense (Benefit) |
Amount of deferred foreign income tax expense (benefit) pertaining to income (loss) from continuing operations. |
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us-gaap |
Deferred Income Tax Expense (Benefit) |
Amount of deferred income tax expense (benefit) pertaining to income (loss) from continuing operations. |
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us-gaap |
Deferred State and Local Income Tax Expense (Benefit) |
Amount of deferred state and local tax expense (benefit) pertaining to income (loss) from continuing operations. |
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us-gaap |
Deferred Tax Assets, Capital Loss Carryforwards |
Amount before allocation of valuation allowances of deferred tax asset attributable to deductible capital loss carryforwards. |
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us-gaap |
Deferred Tax Assets, Net |
Amount, after allocation of valuation allowances and deferred tax liability, of deferred tax asset attributable to deductible differences and carryforwards, without jurisdictional netting. |
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us-gaap |
Deferred Tax Assets, Operating Loss Carryforwards |
Amount before allocation of valuation allowances of deferred tax asset attributable to deductible operating loss carryforwards. |
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us-gaap |
Deferred Tax Assets, Other |
Amount, before allocation of valuation allowance, of deferred tax asset attributable to deductible temporary differences, classified as other. |
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us-gaap |
Deferred Tax Assets, Property, Plant and Equipment |
Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from property, plant, and equipment. |
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us-gaap |
Deferred Tax Assets, Tax Credit Carryforwards |
Amount, before allocation of a valuation allowances, of deferred tax assets attributable to deductible tax credit carryforwards including, but not limited to, research, foreign, general business, alternative minimum tax, and other deductible tax credit carryforwards. |
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us-gaap |
Deferred Tax Assets, Tax Credit Carryforwards, Foreign |
Amount before allocation of valuation allowances of deferred tax asset attributable to deductible foreign tax credit carryforwards. |
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us-gaap |
Deferred Tax Assets, Tax Credit Carryforwards, Other |
Amount, before allocation of valuation allowance, of deferred tax asset attributable to deductible tax credit carryforwards, classified as other. |
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us-gaap |
Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits, Share-based Compensation Cost |
Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from share-based compensation. |
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us-gaap |
Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals, Asset Retirement Obligations |
Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from asset retirement obligations. An asset retirement obligation is a legal obligation associated with the disposal or retirement from service of a tangible long-lived asset. |
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us-gaap |
Deferred Tax Assets, Valuation Allowance |
Amount of deferred tax assets for which it is more likely than not that a tax benefit will not be realized. |
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us-gaap |
Derivative Asset, Fair Value, Gross Liability |
Fair value of liability associated with financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. |
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us-gaap |
Derivative Asset, Current |
Fair value, after the effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset, expected to be settled within one year or normal operating cycle, if longer. Includes assets not subject to a master netting arrangement and not elected to be offset. |
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us-gaap |
Derivative Asset, Noncurrent |
Fair value, after the effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset, expected to be settled after one year or the normal operating cycle, if longer. Includes assets not subject to a master netting arrangement and not elected to be offset. |
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us-gaap |
Derivative Liability |
Fair value, after the effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes liabilities not subject to a master netting arrangement and not elected to be offset. |
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us-gaap |
Derivative Liability, Current |
Fair value, after the effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset, expected to be settled within one year or normal operating cycle, if longer. Includes assets not subject to a master netting arrangement and not elected to be offset. |
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us-gaap |
Derivative Liability, Noncurrent |
Fair value, after the effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset, expected to be settled after one year or the normal operating cycle, if longer. Includes assets not subject to a master netting arrangement and not elected to be offset. |
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us-gaap |
Derivative Liability, Fair Value, Gross Asset |
Fair value of asset associated with financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. |
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us-gaap |
Derivative Liability, Fair Value, Gross Liability Including Not Subject to Master Netting Arrangement |
Fair value, before effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes liabilities not subject to a master netting arrangement and elected not to be offset. |
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us-gaap |
Derivative, Loss on Derivative |
Amount of decrease in the fair value of derivatives recognized in the income statement. |
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us-gaap |
Discontinued Operation, Gain (Loss) from Disposal of Discontinued Operation, before Income Tax |
Amount before tax of gain (loss) not previously recognized resulting from the disposal of a discontinued operation. |
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us-gaap |
Discontinued Operation, Gain (Loss) on Disposal of Discontinued Operation, Net of Tax |
Amount after tax of gain (loss) not previously recognized resulting from the disposal of a discontinued operation. |
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us-gaap |
Changes in Estimated Future Development Costs |
Amount of increase (decrease) in standardized measure of discounted future net cash flow as a result of change in estimated future development costs. |
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us-gaap |
Discontinued Operation, Income (Loss) from Discontinued Operation During Phase-out Period, before Income Tax |
Amount before tax of income (loss) from operations classified as a discontinued operation. Excludes gain (loss) on disposal and provision for gain (loss) until its disposal. |
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us-gaap |
Discontinued Operation, Income (Loss) from Discontinued Operation During Phase-out Period, Net of Tax |
Amount after tax of income (loss) from operations classified as a discontinued operation. Excludes gain (loss) on disposal and provision for gain (loss) until disposal. |
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us-gaap |
Discontinued Operation, Tax Effect of Discontinued Operation |
Amount of tax expense (benefit) related to a discontinued operation. Includes, but is not limited to, tax expense (benefit) related to income (loss) from operations during the phase-out period, tax expense (benefit) related to gain (loss) on disposal, tax expense (benefit) related to gain (loss) for reversal of write-down (write-down) to fair value, less cost to sell, and tax expense (benefit) related to adjustments of a prior period gain (loss) on disposal. |
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us-gaap |
Discontinued Operation, Tax Effect of Income (Loss) from Discontinued Operation During Phase-out Period |
Amount of tax expense (benefit) attributable to income (loss) from operations classified as a discontinued operation. Excludes tax expense (benefit) for gain (loss) on disposal and for provision for gain (loss) until disposal. |
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us-gaap |
Discounted Future Net Cash Flows Relating to Proved Oil and Gas Reserves, 10 Percent Annual Discount for Estimated Timing of Cash Flows (Deprecated 2014-01-31) |
This is the amount that is derived from using a discount rate of ten percent a year to reflect the timing of the future net cash flows relating to proved oil and gas reserves. |
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us-gaap |
Discounted Future Net Cash Flows Relating to Proved Oil and Gas Reserves, Future Cash Inflows (Deprecated 2014-01-31) |
Amount of estimated future cash inflows from sale of proved oil and gas reserves. |
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us-gaap |
Discounted Future Net Cash Flows Relating to Proved Oil and Gas Reserves, Future Development Costs (Deprecated 2013-01-31) |
The future cost of developing oil and gas from proved reserves located in this geographic region. |
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us-gaap |
Discounted Future Net Cash Flows Relating to Proved Oil and Gas Reserves, Future Development Costs (Deprecated 2014-01-31) |
Amount of estimated future cost to be incurred in developing proved oil and gas reserves. |
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us-gaap |
Discounted Future Net Cash Flows Relating to Proved Oil and Gas Reserves, Future Income Tax Expense (Deprecated 2013-01-31) |
The estimated future income tax expenses that will be incurred based on the future income less future expenses derived from production and sale of proved oil and gas reserves in this geographic region. |
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us-gaap |
Discounted Future Net Cash Flows Relating to Proved Oil and Gas Reserves, Future Income Tax Expense (Deprecated 2014-01-31) |
Amount of estimated future income tax expense to be incurred based on the future income less future expense derived from production and sale of proved oil and gas reserves. |
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us-gaap |
Discounted Future Net Cash Flows Relating to Proved Oil and Gas Reserves, Future Net Cash Flows (Deprecated 2014-01-31) |
Amount of estimated net future cash inflows, after subtracting future development and production costs and future income tax expenses, from sale of proved oil and gas reserves. |
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us-gaap |
Discounted Future Net Cash Flows Relating to Proved Oil and Gas Reserves, Future Production Costs (Deprecated 2013-01-31) |
The future cost of producing oil and gas from proved reserves located in this geographic region. |
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us-gaap |
Discounted Future Net Cash Flows Relating to Proved Oil and Gas Reserves, Future Production Costs (Deprecated 2014-01-31) |
Amount of estimated future cost to be incurred in producing proved oil and gas reserves. |
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us-gaap |
Discounted Future Net Cash Flows Relating to Proved Oil and Gas Reserves, Standardized Measure (Deprecated 2014-01-31) |
This amount is the future net cash flows less the computed discount. |
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us-gaap |
Disposal Group, Including Discontinued Operation, Interest Expense |
Amount of interest expense attributable to disposal group, including, but not limited to, discontinued operation. |
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us-gaap |
Disposal Group, Including Discontinued Operation, Operating Expense |
Amount of operating expense attributable to disposal group, including, but not limited to, discontinued operation. |
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us-gaap |
Disposal Group, Including Discontinued Operation, Other Assets, Noncurrent |
Amount classified as other assets attributable to disposal group held for sale or disposed of, expected to be disposed of after one year or the normal operating cycle, if longer. |
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us-gaap |
Disposal Group, Including Discontinued Operation, Revenue |
Amount of revenue attributable to disposal group, including, but not limited to, discontinued operation. |
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us-gaap |
Dividends, Preferred Stock |
Amount of paid and unpaid preferred stock dividends declared with the form of settlement in cash, stock and payment-in-kind (PIK). |
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us-gaap |
Dividends, Preferred Stock, Cash |
Amount of paid and unpaid preferred stock dividends declared with the form of settlement in cash. |
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us-gaap |
Dividends, Preferred Stock, Paid-in-kind |
Amount of paid and unpaid preferred stock dividends declared with the form of settlement in payment-in-kind (PIK). |
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us-gaap |
Due from Related Parties, Current |
The aggregate amount of receivables to be collected from related parties where one party can exercise control or significant influence over another party; including affiliates, owners or officers and their immediate families, pension trusts, and so forth, at the financial statement date. which are usually due within one year (or one business cycle). |
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us-gaap |
Effect of Exchange Rate on Cash and Cash Equivalents |
Amount of increase (decrease) from the effect of exchange rate changes on cash and cash equivalent balances held in foreign currencies. |
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us-gaap |
Embedded Derivative, Loss on Embedded Derivative |
Decrease in the fair value of the embedded derivative or group of embedded derivatives included in earnings in the period. |
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us-gaap |
Employee Service Share-based Compensation, Cash Received from Exercise of Stock Options (Deprecated 2017-01-31) |
Aggregate proceeds received by the entity during the annual period from exercises of stock or unit options and conversion of similar instruments granted under equity-based payment arrangements. |
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us-gaap |
Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount |
Amount of cost not yet recognized for nonvested award under share-based payment arrangement. |
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us-gaap |
Employee Service Share-based Compensation, Nonvested Awards, Total Compensation Cost Not yet Recognized, Period for Recognition (Deprecated 2012-01-31) |
The weighted average period over which unrecognized compensation is expected to be recognized for equity-based compensation plans, using a decimal to express in number of years. |
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us-gaap |
Employee Stock Ownership Plan (ESOP), Compensation Expense |
The amount of plan compensation cost recognized during the period. |
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us-gaap |
Employee Stock Ownership Plan (ESOP), Number of Suspense Shares |
Shares contributed to the ESOP that have not yet been released, committed to be released, or allocated to participant accounts. Suspense shares generally collateralize ESOP debt. |
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us-gaap |
Employee Stock Ownership Plan (ESOP), Shares Contributed to ESOP |
This item represents the number of shares provided to the Employee Stock Ownership Plan (ESOP) during the period. |
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us-gaap |
Energy Related Inventory |
Carrying amount as of the balance sheet date of merchandise, goods, commodities, or supplies relating to a source of usable power held for future sale or future use in manufacturing or production process. |
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us-gaap |
Equity Method Investment, Other than Temporary Impairment |
This item represents an other than temporary decline in value that has been recognized against an investment accounted for under the equity method of accounting. The excess of the carrying amount over the fair value of the investment represents the amount of the write down which is or was reflected in earnings. The written down value is a new cost basis with the adjusted value of the investment becoming its new carrying value subject to the equity accounting method. Evidence of a loss in value might include, but would not necessarily be limited to, absence of an ability to recover the carrying amount of the investment or inability of the investee to sustain an earnings capacity which would justify the carrying amount of the investment. |
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us-gaap |
Equity Method Investment, Ownership Percentage |
The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting. |
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us-gaap |
Equity Method Investments |
This item represents the carrying amount on the entity's balance sheet of its investment in common stock of an equity method investee. This is not an indicator of the fair value of the investment, rather it is the initial cost adjusted for the entity's share of earnings and losses of the investee, adjusted for any distributions (dividends) and other than temporary impairment (OTTI) losses recognized. |
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us-gaap |
Equity Method Investments, Fair Value Disclosure |
Fair value portion of investments accounted under the equity method. |
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us-gaap |
Exploration Abandonment and Impairment Expense |
The adjustment to expense previously capitalized costs of drilling exploratory wells when proved reserves are not found or when the entity obtains information that raises substantial doubt about the economic or operational viability of the project. |
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us-gaap |
Exploration and Production Revenue (Deprecated 2018-01-31) |
Revenue related to the upstream oil and gas activities, such as exploration, development, and production of crude petroleum. |
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us-gaap |
Increase (Decrease) in Inventories |
The increase (decrease) during the reporting period in the aggregate value of all inventory held by the reporting entity, associated with underlying transactions that are classified as operating activities. |
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us-gaap |
Extensions, Discoveries, Additions and Improved Recovery, Less Related Costs |
Amount of increase (decrease) in standardized measure of discounted future net cash flow as a result of extensions, discoveries and improved recovery of proved oil and gas reserves. |
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us-gaap |
Fair Value Inputs, Discount Rate (Deprecated 2018-01-31) |
Interest rate used to find the present value of an amount to be paid or received in the future as an input to measure fair value. For example, but not limited to, weighted average cost of capital (WACC), cost of capital, cost of equity and cost of debt. |
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us-gaap |
Finite-Lived Intangible Assets, Accumulated Amortization |
Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. |
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us-gaap |
Finite-Lived Intangible Asset, Expected Amortization, after Year Five |
Amount of amortization for asset, excluding financial asset and goodwill, lacking physical substance with finite life expected to be recognized after fifth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach). |
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us-gaap |
Finite-Lived Intangible Asset, Expected Amortization, Year One |
Amount of amortization for assets, excluding financial assets and goodwill, lacking physical substance with finite life expected to be recognized in next fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach). |
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us-gaap |
Finite-Lived Intangible Asset, Expected Amortization, Year Five |
Amount of amortization for assets, excluding financial assets and goodwill, lacking physical substance with finite life expected to be recognized in fifth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach). |
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us-gaap |
Finite-Lived Intangible Asset, Expected Amortization, Year Four |
Amount of amortization for assets, excluding financial assets and goodwill, lacking physical substance with finite life expected to be recognized in fourth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach). |
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us-gaap |
Finite-Lived Intangible Asset, Expected Amortization, Year Three |
Amount of amortization for assets, excluding financial assets and goodwill, lacking physical substance with finite life expected to be recognized in third fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach). |
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us-gaap |
Finite-Lived Intangible Asset, Expected Amortization, Year Two |
Amount of amortization for assets, excluding financial assets and goodwill, lacking physical substance with finite life expected to be recognized in second fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach). |
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us-gaap |
Finite-Lived Intangible Assets, Gross |
Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. |
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us-gaap |
Finite-Lived Intangible Assets, Net |
Amount after amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. |
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us-gaap |
Future Net Cash Flows Relating to Proved Oil and Gas Reserves, Cash Inflows |
Amount of estimated future accumulated cash inflow from the sale of proved oil and gas reserves. |
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us-gaap |
Future Net Cash Flows Relating to Proved Oil and Gas Reserves, Development Costs |
Amount of estimated future accumulated cash outflow for costs to be incurred in developing proved oil and gas reserves. |
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us-gaap |
Future Net Cash Flows Relating to Proved Oil and Gas Reserves, Income Tax Expense |
Amount of estimated future accumulated cash outflow for income tax, based on the future income less future expense derived from production and sale of proved oil and gas reserves. |
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us-gaap |
Future Net Cash Flows Relating to Proved Oil and Gas Reserves, Net Cash Flows |
Amount, after future accumulated cash outflow for development and production costs and future income tax, of estimated future accumulated cash inflow from the sale of proved oil and gas reserves. |
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us-gaap |
Future Net Cash Flows Relating to Proved Oil and Gas Reserves, Production Costs |
Amount of estimated future accumulated cash outflow for costs to be incurred in producing proved oil and gas reserves. |
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us-gaap |
Increase (Decrease) in Other Noncurrent Liabilities |
Amount of increase (decrease) in noncurrent operating liabilities classified as other. |
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us-gaap |
Increase (Decrease) in Prepaid Expense and Other Assets |
Amount of increase (decrease) in prepaid expenses, and assets classified as other. |
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us-gaap |
Gain (Loss) on Derivative Instruments, Net, Pretax |
Aggregate net gain (loss) on all derivative instruments recognized in earnings during the period, before tax effects. |
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us-gaap |
Gain (Loss) on Sale of Derivatives |
The difference between the book value and the sale price of options, swaps, futures, forward contracts, and other derivative instruments. This element refers to the gain (loss) included in earnings. |
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us-gaap |
Gain (Loss) on Disposition of Oil and Gas Property |
Amount of gain (loss) on sale or disposal of proven and unproven oil and gas properties. |
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us-gaap |
Gain (Loss) on Disposition of Property Plant Equipment |
Amount of gain (loss) on sale or disposal of property, plant and equipment assets, including oil and gas property and timber property. |
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us-gaap |
Gain (Loss) on Disposition of Stock in Subsidiary or Equity Method Investee |
Amount of gain (loss) on sale or disposal of equity in securities of subsidiaries or equity method investee. |
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us-gaap |
Gain (Loss) on Disposition of Assets for Financial Service Operations |
Amount of gain (loss) on sale or disposal of assets utilized in financial service operations. |
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us-gaap |
Gas Gathering, Transportation, Marketing and Processing Costs (Deprecated 2018-01-31) |
Cost incurred related to the gas activities, such as transportation, marketing and processing crude oil, natural gas and refined petroleum products. |
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us-gaap |
Gas Gathering, Transportation, Marketing and Processing Revenue (Deprecated 2018-01-31) |
Revenue related to midstream and downstream gas activities. May include the following: gathering from wells, processing to remove impurities, storage, transmission, and the sale of natural gas and related products. |
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us-gaap |
General and Administrative Expense |
The aggregate total of expenses of managing and administering the affairs of an entity, including affiliates of the reporting entity, which are not directly or indirectly associated with the manufacture, sale or creation of a product or product line. |
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us-gaap |
Goodwill |
Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. |
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us-gaap |
Goodwill, Acquired During Period |
Amount of increase in asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized resulting from a business combination. |
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us-gaap |
Impairment of Leasehold |
The adjustment to reduce the value of existing agreements that specify the lessee's rights to use the leased property. This expense is charged when the estimates of future profits generated by the leased property are reduced. |
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us-gaap |
Impairment of Long-Lived Assets Held-for-use |
The aggregate amount of write-downs for impairments recognized during the period for long lived assets held for use (including those held for disposal by means other than sale). |
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us-gaap |
Impairment of Long-Lived Assets to be Disposed of |
The aggregate amount of write-downs for impairments recognized during the period for long-lived assets held for abandonment, exchange or sale. |
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us-gaap |
Impairment of Oil and Gas Properties |
The expense recorded to reduce the value of oil and gas assets consisting of proved properties and unproved properties as the estimate of future successful production from these properties is reduced. |
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us-gaap |
Income (Loss) from Continuing Operations, Net of Tax, Attributable to Parent |
Amount after tax of income (loss) from continuing operations attributable to the parent. |
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us-gaap |
Income (Loss) from Continuing Operations before Income Taxes, Domestic |
The portion of earnings or loss from continuing operations before income taxes that is attributable to domestic operations. |
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us-gaap |
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest |
Amount of income (loss) from continuing operations, including income (loss) from equity method investments, before deduction of income tax expense (benefit), and income (loss) attributable to noncontrolling interest. |
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us-gaap |
Income (Loss) from Continuing Operations before Income Taxes, Foreign |
The portion of earnings or loss from continuing operations before income taxes that is attributable to foreign operations, which is defined as Income or Loss generated from operations located outside the entity's country of domicile. |
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us-gaap |
Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Noncontrolling Interest |
Amount of income (loss) from continuing operations before deduction of income tax expense (benefit) and income (loss) attributable to noncontrolling interest, and addition of income (loss) from equity method investments. |
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us-gaap |
Income (Loss) from Continuing Operations, Net of Tax, Including Portion Attributable to Noncontrolling Interest |
Amount after tax of income (loss) from continuing operations including portion attributable to the noncontrolling interest. |
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us-gaap |
Income (Loss) from Continuing Operations, Per Basic and Diluted Share |
The amount of net income (loss) from continuing operations per each basic and diluted share of common stock or unit when the per share amount is the same for both basic and diluted shares. |
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us-gaap |
Changes in Future Income Tax Expense Estimates on Future Cash Flows Related to Proved Oil and Gas Reserves |
Amount of increase (decrease) in standardized measure of discounted future net cash flow as a result of change in the estimated future income tax on future pretax net cash flows related to the entity's proved oil and gas reserves. |
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us-gaap |
Income (Loss) from Discontinued Operations, Net of Tax, Attributable to Parent |
Amount after tax of income (loss) from a discontinued operation attributable to the parent. Includes, but is not limited to, the income (loss) from operations during the phase-out period, gain (loss) on disposal, gain (loss) for reversal of write-down (write-down) to fair value, less cost to sell, and adjustments to a prior period gain (loss) on disposal. |
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us-gaap |
Income (Loss) from Discontinued Operations and Disposal of Discontinued Operations, Net of Tax, Per Basic and Diluted Share |
Per basic and diluted share amount, after tax, of income (loss) from the day-to-day business activities of the discontinued operation and gain (loss) from the disposal of the discontinued operation, when the per share amount is the same. |
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us-gaap |
Income (Loss) from Equity Method Investments |
Amount of income (loss) for proportionate share of equity method investee's income (loss). |
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us-gaap |
Income Tax Expense (Benefit) |
Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations. |
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us-gaap |
Income Tax Expense (Benefit), Continuing Operations (Deprecated 2013-01-31) |
The sum of the current income tax expense or benefit and the deferred income tax expense or benefit pertaining to pretax Income or Loss from continuing operations; income tax expense or benefit may include interest and penalties on tax uncertainties based on the entity's accounting policy. |
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us-gaap |
Income Tax Expense (Benefit), Intraperiod Tax Allocation |
Amount of income tax expense (benefit) for continuing operations, discontinued operations, other comprehensive income, and items charged (credited) directly to shareholders' equity. |
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us-gaap |
Income Taxes Paid |
The amount of cash paid during the current period to foreign, federal, state, and local authorities as taxes on income. |
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us-gaap |
Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance, Amount |
Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to increase (decrease) in the valuation allowance for deferred tax assets. |
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us-gaap |
Effective Income Tax Rate Reconciliation, Foreign Income Tax Rate Differential, Amount |
Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to foreign income tax expense (benefit). |
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us-gaap |
Effective Income Tax Rate Reconciliation at Federal Statutory Income Tax Rate, Amount |
The amount of income tax expense or benefit for the period computed by applying the domestic federal statutory tax rates to pretax income from continuing operations. |
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us-gaap |
Effective Income Tax Rate Reconciliation, Noncontrolling Interest Income (Loss), Amount |
Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to noncontrolling interest income (loss) exempt from income taxes. |
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us-gaap |
Increase (Decrease) in Accounts Payable |
The increase (decrease) during the reporting period in the aggregate amount of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business. |
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us-gaap |
Increase (Decrease) in Accounts Payable and Accrued Liabilities |
The increase (decrease) during the reporting period in the amounts payable to vendors for goods and services received and the amount of obligations and expenses incurred but not paid. |
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us-gaap |
Increase (Decrease) in Accounts Payable and Other Operating Liabilities |
Amount of increase (decrease) in obligations incurred but not paid, and operating obligations classified as other. |
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us-gaap |
Increase (Decrease) in Accounts Receivable and Other Operating Assets |
Amount of increase (decrease) in receivables, and operating assets classified as other. |
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us-gaap |
Increase (Decrease) in Accrued Liabilities |
The increase (decrease) during the reporting period in the aggregate amount of expenses incurred but not yet paid. |
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us-gaap |
Increase (Decrease) in Deposit Assets |
The increase (decrease) during the reporting period in moneys or securities given as security including, but not limited to, contract, escrow, or earnest money deposits, retainage (if applicable), deposits with clearing organizations and others, collateral, or margin deposits. |
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us-gaap |
Increase Due to Purchases of Minerals in Place |
Amount of increase in standardized measure of discounted future net cash flow as a result of purchases of minerals in place. |
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us-gaap |
Intangible Assets, Net (Excluding Goodwill) |
Sum of the carrying amounts of all intangible assets, excluding goodwill, as of the balance sheet date, net of accumulated amortization and impairment charges. |
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us-gaap |
Interest Costs Capitalized |
Amount of interest capitalized during the period. |
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us-gaap |
Interest Expense |
Amount of the cost of borrowed funds accounted for as interest expense. |
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us-gaap |
Interest Expense, Debt |
Amount of the cost of borrowed funds accounted for as interest expense for debt. |
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us-gaap |
Interest Expense, Long-term Debt |
Aggregate amount of interest paid or due on all long-term debt. |
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us-gaap |
Inventory, Drilling, Noncurrent |
Carrying amount as of the balance sheet date of inventories of minerals, materials and supplies related to long-term drilling operations. |
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us-gaap |
Inventory, Net |
Amount after valuation and LIFO reserves of inventory expected to be sold, or consumed within one year or operating cycle, if longer. |
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us-gaap |
Inventory, Noncurrent |
Inventories not expected to be converted to cash, sold or exchanged within the normal operating cycle. |
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us-gaap |
Inventory, Raw Materials and Supplies, Net of Reserves |
Aggregated amount of unprocessed materials to be used in manufacturing or production process and supplies that will be consumed. This amount is net of valuation reserves and adjustments. |
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us-gaap |
Investment Income, Interest |
Amount before accretion (amortization) of purchase discount (premium) of interest income on nonoperating securities. |
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us-gaap |
Operating Leases, Rent Expense |
Amount of rent expense incurred for leased assets, including but not limited to, furniture and equipment, that is not directly or indirectly associated with the manufacture, sale or creation of a product or product line. |
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us-gaap |
Oil and Gas Property, Lease Operating Expense (Deprecated 2018-01-31) |
Amount of lease operating expense related to property used in oil and gas production. |
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us-gaap |
Liabilities |
Sum of the carrying amounts as of the balance sheet date of all liabilities that are recognized. Liabilities are probable future sacrifices of economic benefits arising from present obligations of an entity to transfer assets or provide services to other entities in the future. |
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us-gaap |
Liabilities and Equity |
Amount of liabilities and equity items, including the portion of equity attributable to noncontrolling interests, if any. |
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us-gaap |
Liabilities, Current |
Total obligations incurred as part of normal operations that are expected to be paid during the following twelve months or within one business cycle, if longer. |
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us-gaap |
Liabilities, Noncurrent |
Amount of obligation due after one year or beyond the normal operating cycle, if longer. |
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us-gaap |
Liabilities of Assets Held-for-sale (Deprecated 2014-01-31) |
Liability (such as a mortgage) related to a disposal group that is held for sale and anticipated to be sold in less than one year. The liability is expected to be discharged as part of the plan of sale for the asset. |
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us-gaap |
Disposal Group, Including Discontinued Operation, Liabilities, Noncurrent |
Amount classified as liabilities attributable to disposal group held for sale or disposed of, expected to be disposed of beyond one year or the normal operating cycle, if longer. |
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us-gaap |
Liabilities Subject to Compromise |
Total amount of liabilities subject to compromise. |
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us-gaap |
Liabilities Subject to Compromise, Debt and Accrued Interest |
The amount of debt and related accrued interest included in liabilities subject to compromise. |
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us-gaap |
Liabilities Subject to Compromise, Other Liabilities |
The amount of other obligations included in liabilities subject to compromise. |
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us-gaap |
Liability for Uncertainty in Income Taxes, Current |
Amount recognized for uncertainty in income taxes classified as current. |
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us-gaap |
Line of Credit Facility, Current Borrowing Capacity |
Amount of current borrowing capacity under the credit facility considering any current restrictions on the amount that could be borrowed (for example, borrowings may be limited by the amount of current assets), but without considering any amounts currently outstanding under the facility. |
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us-gaap |
Line of Credit Facility, Maximum Borrowing Capacity |
Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility. |
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us-gaap |
Line of Credit Facility, Remaining Borrowing Capacity |
Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding). |
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us-gaap |
Long-term Debt |
Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations. |
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us-gaap |
Long-Term Debt, Maturity, after Year Five |
Amount of long-term debt payable, sinking fund requirement, and other securities issued that are redeemable by holder at fixed or determinable price and date, maturing after fifth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach). |
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us-gaap |
Long-Term Debt, Maturity, Year One |
Amount of long-term debt payable, sinking fund requirement, and other securities issued that are redeemable by holder at fixed or determinable price and date, maturing in next fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach). |
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us-gaap |
Long-Term Debt, Maturity, Year Five |
Amount of long-term debt payable, sinking fund requirement, and other securities issued that are redeemable by holder at fixed or determinable price and date, maturing in fifth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach). |
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us-gaap |
Long-Term Debt, Maturity, Year Four |
Amount of long-term debt payable, sinking fund requirement, and other securities issued that are redeemable by holder at fixed or determinable price and date, maturing in fourth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach). |
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us-gaap |
Long-Term Debt, Maturity, Year Three |
Amount of long-term debt payable, sinking fund requirement, and other securities issued that are redeemable by holder at fixed or determinable price and date, maturing in third fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach). |
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us-gaap |
Long-Term Debt, Maturity, Year Two |
Amount of long-term debt payable, sinking fund requirement, and other securities issued that are redeemable by holder at fixed or determinable price and date, maturing in second fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach). |
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us-gaap |
Long-Term Debt, Maturity, Remainder of Fiscal Year |
Amount of long-term debt payable, sinking fund requirement, and other securities issued that are redeemable by holder at fixed or determinable price and date, maturing in remainder of current fiscal year. |
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us-gaap |
Long-term Debt, Excluding Current Maturities |
Amount after unamortized (discount) premium and debt issuance costs of long-term debt classified as noncurrent and excluding amounts to be repaid within one year or the normal operating cycle, if longer. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations. |
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us-gaap |
Notes and Loans, Noncurrent |
Carrying value as of the balance sheet date of all notes and loans payable (with maturities initially due after one year or beyond the operating cycle if longer), excluding current portion. |
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us-gaap |
Notes Payable, Noncurrent |
Carrying value as of the balance sheet date of notes payable (with maturities initially due after one year or beyond the operating cycle if longer), excluding current portion. |
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us-gaap |
Minimum Net Capital Required for Broker-Dealer Subsidiary (Deprecated 2012-01-31) |
The minimum amount of net capital required to be maintained by the company's broker-dealer subsidiary to engage in securities transactions. |
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us-gaap |
Stockholders' Equity Attributable to Noncontrolling Interest |
Total of all stockholders' equity (deficit) items, net of receivables from officers, directors, owners, and affiliates of the entity which is directly or indirectly attributable to that ownership interest in subsidiary equity which is not attributable to the parent (that is, noncontrolling interest, previously referred to as minority interest). |
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us-gaap |
Noncontrolling Interest, Decrease from Redemptions or Purchase of Interests |
Decrease in noncontrolling interest (for example, but not limited to, redeeming or purchasing the interests of noncontrolling shareholders, issuance of shares (interests) by the non-wholly owned subsidiary to the parent entity for other than cash, and a buyback of shares (interest) by the non-wholly owned subsidiary from the noncontrolling interests). |
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us-gaap |
Noncontrolling Interest, Ownership Percentage by Noncontrolling Owners |
The equity interest of noncontrolling shareholders, partners or other equity holders in consolidated entity. |
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us-gaap |
Net Capital |
Net capital is equal to the net worth of the broker dealer, less certain items such as exchange memberships, carrying value of securities not readily marketable, haircuts on marketable securities in proprietary accounts, furniture and equipment and other illiquid assets as defined. |
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us-gaap |
Net Cash Provided by (Used in) Financing Activities |
Amount of cash inflow (outflow) from financing activities, including discontinued operations. Financing activity cash flows include obtaining resources from owners and providing them with a return on, and a return of, their investment; borrowing money and repaying amounts borrowed, or settling the obligation; and obtaining and paying for other resources obtained from creditors on long-term credit. |
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us-gaap |
Net Cash Provided by (Used in) Investing Activities |
Amount of cash inflow (outflow) from investing activities, including 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. |
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us-gaap |
Net Cash Provided by (Used in) Operating Activities |
Amount of cash inflow (outflow) from operating activities, including discontinued operations. Operating activity cash flows include transactions, adjustments, and changes in value not defined as investing or financing activities. |
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us-gaap |
Net Increase (Decrease) in Sales and Transfer Prices and Production Costs |
Amount of increase (decrease) in standardized measure of discounted future net cash flow as a result of change in sales and transfer prices and in production (lifting) costs related to future production. |
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us-gaap |
Noncash or Part Noncash Acquisition, Debt Assumed |
"The amount of debt that an Entity assumes in acquiring a business or in consideration for an asset received in a noncash (or part noncash) acquisition. Noncash is defined as transactions during a period that affect recognized assets or liabilities but that do not result in cash receipts or cash payments in the period. ""Part noncash"" refers to that portion of the transaction not resulting in cash receipts or cash payments in the period." |
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us-gaap |
Noncash or Part Noncash Acquisition, Investments Acquired |
"The amount of investments that an Entity acquires in a noncash (or part noncash) acquisition. Noncash is defined as information about all investing and financing activities of an enterprise during a period that affect recognized assets or liabilities but that do not result in cash receipts or cash payments in the period. ""Part noncash"" refers to that portion of the transaction not resulting in cash receipts or cash payments in the period." |
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us-gaap |
Noncash or Part Noncash Acquisition, Noncash Financial or Equity Instrument Consideration, Warrants Issued |
"The number of warrants issued as [noncash or part noncash] consideration for a business or asset acquired. Noncash is defined as transactions during a period that affect recognized assets or liabilities but that do not result in cash receipts or cash payments in the period. ""Part noncash"" refers to that portion of the transaction not resulting in cash receipts or cash payments in the period." |
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us-gaap |
Noncash or Part Noncash Acquisition, Value of Assets Acquired |
"The value of an asset or business acquired in a noncash (or part noncash) acquisition. Noncash is defined as information about all investing and financing activities of an enterprise during a period that affect recognized assets or liabilities but that do not result in cash receipts or cash payments in the period. ""Part noncash"" refers to that portion of the transaction not resulting in cash receipts or cash payments in the period." |
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us-gaap |
Noncontrolling Interest, Decrease from Deconsolidation |
The amount of the reduction or elimination during the period of a noncontrolling interest resulting from the parent's loss of control and deconsolidation of the entity in which one or more outside parties had a noncontrolling interest. |
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us-gaap |
Noncontrolling Interest, Increase from Business Combination |
Amount of increase in noncontrolling interest from a business combination. |
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us-gaap |
Noncontrolling Interest, Increase from Subsidiary Equity Issuance |
Amount of increase in noncontrolling interest from subsidiary issuance of equity interests to noncontrolling interest holders. |
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us-gaap |
Nonoperating Income (Expense) |
The aggregate amount of income or expense from ancillary business-related activities (that is to say, excluding major activities considered part of the normal operations of the business). |
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|
us-gaap |
Notes Payable, Current |
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. |
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us-gaap |
Oil and Gas Joint Interest Billing Receivables |
Portion of accounts receivable attributable to joint interest partners in oil and gas properties. These are billings to the non-operators associated with the operation of wells and are based on those owners' working interests in the wells. |
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us-gaap |
Oil and Gas Property, Successful Effort Method, Accumulated Depreciation, Depletion Amortization and Impairment |
Amount of accumulated depreciation, depletion, amortization and impairment of oil and gas property carried under the successful effort method. |
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us-gaap |
Oil and Gas Property, Successful Effort Method, Gross |
Oil and Gas properties, gross, carried under the successful effort method. |
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us-gaap |
Operating Income (Loss) |
The net result for the period of deducting operating expenses from operating revenues. |
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us-gaap |
Operating Leases, Future Minimum Payments Due, Next Twelve Months |
Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in the next fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. |
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us-gaap |
Operating Leases, Future Minimum Payments, Due in Five Years |
Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. |
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us-gaap |
Operating Leases, Future Minimum Payments, Due in Four Years |
Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in the fourth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. |
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us-gaap |
Operating Leases, Future Minimum Payments, Due in Two Years |
Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in the second fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. |
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us-gaap |
Operating Leases, Future Minimum Payments, Due Thereafter |
Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due after the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. |
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us-gaap |
Operating Loss Carryforwards, Valuation Allowance |
The portion of the valuation allowance pertaining to the deferred tax asset representing potential future taxable deductions from net operating loss carryforwards for which it is more likely than not that a tax benefit will not be realized. |
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us-gaap |
Other Assets |
Amount of assets classified as other. |
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us-gaap |
Other Assets, Noncurrent |
Amount of noncurrent assets classified as other. |
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us-gaap |
Other Comprehensive Income (Loss), Available-for-sale Securities Adjustment, Net of Tax, Portion Attributable to Parent |
Amount after tax and reclassification adjustments, of appreciation (loss) in value of unsold available-for-sale securities, attributable to parent entity. Excludes amounts related to other than temporary impairment (OTTI) loss. |
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us-gaap |
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax (Deprecated 2012-01-31) |
Adjustment that results from the process of translating subsidiary financial statements and foreign equity investments into the reporting currency of the reporting entity, net of tax. |
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us-gaap |
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax, Portion Attributable to Parent |
Amount after tax and reclassification adjustments of gain (loss) on foreign currency translation adjustments, foreign currency transactions designated and effective as economic hedges of a net investment in a foreign entity and intra-entity foreign currency transactions that are of a long-term-investment nature, attributable to parent entity. |
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us-gaap |
OCI, Debt Securities, Available-for-Sale, Gain (Loss), after Adjustment and Tax |
Amount, after tax and adjustment, of unrealized gain (loss) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale) and unrealized gain (loss) on investment in debt security measured at amortized cost (held-to-maturity) from transfer to available-for-sale. |
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us-gaap |
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax |
Amount after tax and reclassification adjustments of gain (loss) on foreign currency translation adjustments, foreign currency transactions designated and effective as economic hedges of a net investment in a foreign entity and intra-entity foreign currency transactions that are of a long-term-investment nature. |
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us-gaap |
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Reclassification Adjustment from AOCI, Realized upon Sale or Liquidation, Net of Tax |
Amount after tax of reclassification adjustment from accumulated other comprehensive income for translation gain (loss) realized upon the sale or liquidation of an investment in a foreign entity and foreign currency hedges that are designated and qualified as hedging instruments for hedges of the foreign currency exposure of a net investment in a foreign operation. |
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us-gaap |
Other Comprehensive Income (Loss), Net of Tax |
Amount after tax and reclassification adjustments of other comprehensive income (loss). |
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us-gaap |
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI for Sale of Securities, Net of Tax |
Amount after tax of reclassification adjustment from accumulated other comprehensive income for unrealized gain (loss) realized upon the sale of available-for-sale securities. |
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us-gaap |
Other Comprehensive (Income) Loss, Reclassification Adjustment from AOCI for Write-down of Securities, Net of Tax |
Amount after tax of reclassification adjustment from accumulated other comprehensive income for unrealized loss realized upon the write-down of available-for-sale securities. |
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us-gaap |
OCI, Debt Securities, Available-for-Sale, Unrealized Holding Gain (Loss), before Adjustment, after Tax |
Amount, after tax and before adjustment, of unrealized holding gain (loss) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). Excludes unrealized gain (loss) on investment in debt security measured at amortized cost (held-to-maturity) from transfer to available-for-sale. |
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us-gaap |
Other Expenses |
Amount of expense classified as other. |
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us-gaap |
Other Liabilities, Current |
Amount of liabilities classified as other, due within one year or the normal operating cycle, if longer. |
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us-gaap |
Other Liabilities, Noncurrent |
Amount of liabilities classified as other, due after one year or the normal operating cycle, if longer. |
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us-gaap |
Other Nonoperating Income (Expense) |
Amount of income (expense) related to nonoperating activities, classified as other. |
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us-gaap |
Other Operating Income (Expense), Net |
The net amount of other operating income and expenses, the components of which are not separately disclosed on the income statement, from items that are associated with the entity's normal revenue producing operations. |
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us-gaap |
Other Revenue, Net (Deprecated 2018-01-31) |
Amount, after sales adjustments, returns, allowances, and discounts, of revenue classified as other. |
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us-gaap |
Payments for Derivative Instrument, Investing Activities |
The cash outflow for derivative instruments during the period, which are classified as investing activities, excluding those designated as hedging instruments. |
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us-gaap |
Payments for Repurchase of Convertible Preferred Stock |
The cash outflow to reacquire preferred stock originally issued and identified as a security that can be exchanged for another type of financial security. This repurchased stock is held in treasury. |
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us-gaap |
Payments for Repurchase of Redeemable Noncontrolling Interest |
The cash outflow during the period for redemption of redeemable noncontrolling interests. |
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us-gaap |
Payments of Ordinary Dividends, Preferred Stock and Preference Stock |
Amount of cash outflow in the form of ordinary dividends to preferred shareholders of the parent entity. |
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us-gaap |
Payments of Financing Costs |
The cash outflow for loan and debt issuance costs. |
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us-gaap |
Payments of Stock Issuance Costs |
The cash outflow for cost incurred directly with the issuance of an equity security. |
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us-gaap |
Payments to Acquire Additional Interest in Subsidiaries |
The cash outflow associated with the purchase of noncontrolling interest during the period. |
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us-gaap |
Payments to Acquire Businesses, Net of Cash Acquired |
The cash outflow associated with the acquisition of a business, net of the cash acquired from the purchase. |
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us-gaap |
Payments to Acquire Productive Assets |
The cash outflow for purchases of and capital improvements on property, plant and equipment (capital expenditures), software, and other intangible assets. |
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us-gaap |
Payments to Acquire Property, Plant, and Equipment |
The cash outflow associated with the acquisition of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale; includes cash outflows to pay for construction of self-constructed assets. |
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us-gaap |
Preferred Stock, Accretion of Redemption Discount |
The amount of accretion of the preferred stock redemption discount during the period. |
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us-gaap |
Preferred Stock, Amount of Preferred Dividends in Arrears |
Aggregate amount of cumulative preferred dividends in arrears. |
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us-gaap |
Preferred Stock Dividends and Other Adjustments |
The aggregate value of preferred stock dividends and other adjustments necessary to derive net income apportioned to common stockholders. |
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us-gaap |
Preferred Stock Dividends, Income Statement Impact |
The amount of preferred stock dividends that is an adjustment to net income apportioned to common stockholders. |
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us-gaap |
Preferred Stock, Shares Authorized |
The maximum number of nonredeemable preferred shares (or preferred stock redeemable solely at the option of the issuer) permitted to be issued by an entity's charter and bylaws. |
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us-gaap |
Preferred Stock, Value, Issued |
Aggregate par or stated value of issued nonredeemable preferred stock (or preferred stock redeemable solely at the option of the issuer). This item includes treasury stock repurchased by the entity. Note: elements for number of nonredeemable preferred shares, par value and other disclosure concepts are in another section within stockholders' equity. |
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us-gaap |
Prepaid Expense and Other Assets, Current |
Amount of asset related to consideration paid in advance for costs that provide economic benefits in future periods, and amount of other assets that are expected to be realized or consumed within one year or the normal operating cycle, if longer. |
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us-gaap |
Previously Estimated Development Costs Incurred |
Amount of increase in standardized measure of discounted future net cash flow as a result of previously estimated development costs incurred. |
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us-gaap |
Previously Estimated Development Costs Incurred During Period (Deprecated 2015-01-31) |
Amount of (increase) decrease in standardized measure of discounted future net cash flow as a result of previously estimated development costs incurred. |
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us-gaap |
Proceeds from Equity Method Investment, Distribution, Return of Capital |
Amount of distribution received from equity method investee for return of investment, classified as investing activities. Excludes distribution for return on investment, classified as operating activities. |
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us-gaap |
Proceeds from Issuance of Common Stock |
The cash inflow from the additional capital contribution to the entity. |
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us-gaap |
Proceeds from Issuance of Long-term Debt |
The cash inflow from a debt initially having maturity due after one year or beyond the operating cycle, if longer. |
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us-gaap |
Proceeds from Issuance of Preferred Stock and Preference Stock |
Proceeds from issuance of capital stock which provides for a specific dividend that is paid to the shareholders before any dividends to common stockholders and which takes precedence over common stockholders in the event of liquidation. |
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us-gaap |
Proceeds from Issuance of Senior Long-term Debt |
The cash inflow from a borrowing with the highest claim on the assets of the entity in case of bankruptcy or liquidation (with maturities initially due after one year or beyond the operating cycle, if longer). |
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us-gaap |
Proceeds from Issuance or Sale of Equity |
The cash inflow from the issuance of common stock, preferred stock, treasury stock, stock options, and other types of equity. |
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us-gaap |
Proceeds from Long-term Lines of Credit |
The cash inflow from a contractual arrangement with the lender, including letter of credit, standby letter of credit and revolving credit arrangements, under which borrowings can be made up to a specific amount at any point in time with maturities due beyond one year or the operating cycle, if longer. |
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us-gaap |
Proceeds from Warrant Exercises |
The cash inflow associated with the amount received from holders exercising their stock warrants. |
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us-gaap |
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest |
The consolidated profit or loss for the period, net of income taxes, including the portion attributable to the noncontrolling interest. |
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us-gaap |
Property, Plant and Equipment, Net |
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. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures. |
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us-gaap |
Property, Plant and Equipment, Other, Gross |
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. |
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us-gaap |
Property, Plant and Equipment, Other, Net |
Amount after depreciation of long-lived, physical assets used to produce goods and services and not intended for resale, classified as other. |
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us-gaap |
Property, Plant and Equipment, Useful Life, Maximum (Deprecated 2012-01-31) |
The maximum useful life of long-lived, physical assets used in the normal conduct of business and not intended for resale. Examples include land, buildings, machinery and equipment, and other types of furniture and equipment including, but not limited to, office equipment, furniture and fixtures, and computer equipment and software. |
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us-gaap |
Property, Plant and Equipment, Useful Life, Minimum (Deprecated 2012-01-31) |
The minimum useful life of long lived, physical assets used in the normal conduct of business and not intended for resale. Examples include land, buildings, machinery and equipment, and other types of furniture and equipment including, but not limited to, office equipment, furniture and fixtures, and computer equipment and software. |
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us-gaap |
Proved Developed and Undeveloped Reserves, Extensions, Discoveries, and Additions |
Additions to proved reserves that result from (1) extension of the proved acreage of previously discovered (old) reservoirs through additional drilling in periods after discovery and (2) discovery of new fields with proved reserves or of new reservoirs of proved reserves in old fields. |
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us-gaap |
Quantifying Misstatement in Current Year Financial Statements, Amount |
Amount of each individual error being corrected in the correcting adjustment. |
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us-gaap |
Ratio of Indebtedness to Net Capital (Deprecated 2012-01-31) |
Total Aggregate Indebtedness divided by Net Capital. |
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us-gaap |
Refining and Marketing Costs (Deprecated 2018-01-31) |
Cost incurred related to the downstream oil and gas activities, including refining of crude oil and marketing and distribution of crude oil, refined petroleum products, and natural gas. |
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us-gaap |
Refining and Marketing Revenue (Deprecated 2018-01-31) |
Revenue related to the downstream oil and gas activities, including the refining of crude oil, as well as the marketing and distribution of crude oil, refined petroleum products, and natural gas. |
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us-gaap |
Regulated Operating Revenue, Gas |
The amount of regulated gas operating revenues recognized during the period. |
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us-gaap |
Related Party Transaction, Amounts of Transaction |
Amount of transactions with related party during the financial reporting period. |
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us-gaap |
Related Party Transaction, Expenses from Transactions with Related Party |
Expenses recognized resulting from transactions (excluding transactions that are eliminated in consolidated or combined financial statements) with related party. |
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us-gaap |
Reorganization Items |
Total amount of reorganization items. |
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us-gaap |
Repayments of Long-term Debt |
The cash outflow for debt initially having maturity due after one year or beyond the normal operating cycle, if longer. |
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us-gaap |
Restricted Cash and Cash Equivalents |
Amount of cash and cash equivalents restricted as to withdrawal or usage. 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. |
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us-gaap |
Results of Operations, Depreciation, Depletion, Amortization and Accretion |
Depreciation, depletion, amortization, and accretion related to oil and gas producing activities. |
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us-gaap |
Results of Operations, Exploration Expense |
Exploration costs from oil and gas producing activities. |
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us-gaap |
Results of Operations, Impairment of Oil and Gas Properties |
Costs related to the impairment of oil and gas properties |
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us-gaap |
Retained Earnings (Accumulated Deficit) |
The cumulative amount of the reporting entity's undistributed earnings or deficit. |
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us-gaap |
Revenue, Oil and Gas Services (Deprecated 2018-01-31) |
Revenue from oil and gas-related services including well services (such as drilling, rigs and analytic evaluations), transportation, and other supporting contractor services, during the reporting period. |
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us-gaap |
Revisions of Previous Quantity Estimates |
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. |
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us-gaap |
Sales and Transfers of Oil and Gas Produced, Net of Production Costs |
Amount of (increase) decrease in standardized measure of discounted future net cash flow as a result of sales and transfers of oil and gas produced. |
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us-gaap |
Revenue, Net (Deprecated 2018-01-31) |
Total revenue from sale of goods and services rendered during the reporting period, in the normal course of business, reduced by sales returns and allowances, and sales discounts. |
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us-gaap |
Senior Notes, Noncurrent |
Carrying value as of the balance sheet date of Notes with the highest claim on the assets of the issuer in case of bankruptcy or liquidation (with maturities initially due after one year or beyond the operating cycle if longer), excluding current portion. Senior note holders are paid off in full before any payments are made to junior note holders. |
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us-gaap |
Share-based Payment Arrangement, Noncash Expense |
Amount of noncash expense for share-based payment arrangement. |
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us-gaap |
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeited in Period |
The number of equity-based payment instruments, excluding stock (or unit) options, that were forfeited during the reporting period. |
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us-gaap |
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeited in Period, Weighted Average Grant Date Fair Value (Deprecated 2012-01-31) |
The weighted average fair value as of the grant date of equity-based award plans other than stock (unit) option plans that were not exercised or put into effect during the reporting period as a result of the occurrence of a terminating event specified in the contractual agreement of the plan. |
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us-gaap |
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period |
The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan). |
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us-gaap |
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value |
The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan). |
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us-gaap |
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number |
The number of non-vested equity-based payment instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date. |
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us-gaap |
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value |
Per share or unit weighted-average fair value of nonvested award under share-based payment arrangement. Excludes share and unit options. |
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us-gaap |
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Outstanding, Weighted Average Remaining Contractual Term (Deprecated 2012-01-31) |
The weighted average period between the balance sheet date and expiration for equity-based awards other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan), which may be expressed in a decimal value for number of years. |
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us-gaap |
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period |
The number of equity-based payment instruments, excluding stock (or unit) options, that vested during the reporting period. |
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us-gaap |
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Weighted Average Grant Date Fair Value |
The weighted average fair value as of grant date pertaining to an equity-based award plan other than a stock (or unit) option plan for which the grantee gained the right during the reporting period, by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash in accordance with the terms of the arrangement. |
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us-gaap |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period |
Number of share options (or share units) exercised during the current period. |
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us-gaap |
Stock Issued During Period, Value, Acquisitions |
Value of stock issued pursuant to acquisitions during the period. |
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us-gaap |
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility Rate, Minimum |
The estimated measure of the minimum percentage by which a share price is expected to fluctuate during a period. Volatility also may be defined as a probability-weighted measure of the dispersion of returns about the mean. The volatility of a share price is the standard deviation of the continuously compounded rates of return on the share over a specified period. That is the same as the standard deviation of the differences in the natural logarithms of the stock prices plus dividends, if any, over the period. |
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us-gaap |
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate |
The risk-free interest rate assumption that is used in valuing an option on its own shares. |
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us-gaap |
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate, Maximum |
The maximum risk-free interest rate assumption that is used in valuing an option on its own shares. |
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us-gaap |
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate, Minimum |
The minimum risk-free interest rate assumption that is used in valuing an option on its own shares. |
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us-gaap |
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Weighted Average Volatility Rate |
Rate of weighted-average expected volatility for award under share-based payment arrangement. |
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us-gaap |
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized |
Number of shares authorized for issuance under share-based payment arrangement. |
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us-gaap |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value |
The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology. |
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us-gaap |
Share-based Compensation Arrangement by Share-based Payment Award, Shares Issued in Period |
Number of shares issued under share-based payment arrangement. |
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us-gaap |
Share-based Goods and Nonemployee Services Transaction, Quantity of Securities Issued |
The number of shares or units of entity securities issued in the transaction in which equity securities were issued to pay for goods or nonemployee services. |
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|
us-gaap |
Short-term Investments |
Amount of investments including trading securities, available-for-sale securities, held-to-maturity securities, and short-term investments classified as other and current. |
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us-gaap |
Standardized Measure of Discounted Future Net Cash Flow of Proved Oil and Gas Reserves, Other |
Amount of increase (decrease) in standardized measure of discounted future net cash flow as a result of changes from other sources. |
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us-gaap |
Standardized Measure of Discounted Future Net Cash Flows Relating to Proved Oil and Gas Reserves |
Amount of discounted future accumulated cash inflow relating to proved oil and gas reserves. |
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us-gaap |
Stockholders' Equity Attributable to Parent |
Total of all stockholders' equity (deficit) items, net of receivables from officers, directors, owners, and affiliates of the entity which are attributable to the parent. The amount of the economic entity's stockholders' equity attributable to the parent excludes the amount of stockholders' equity which is allocable to that ownership interest in subsidiary equity which is not attributable to the parent (noncontrolling interest, minority interest). This excludes temporary equity and is sometimes called permanent equity. |
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us-gaap |
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest |
Amount of stockholders' equity (deficit), net of receivables from officers, directors, owners, and affiliates of the entity, attributable to both the parent and noncontrolling interests. Amount excludes temporary equity. Alternate caption for the concept is permanent equity. |
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us-gaap |
Stockholders' Equity, Other |
This element represents movements included in the statement of changes in stockholders' equity which are not separately disclosed or provided for elsewhere in the taxonomy. |
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us-gaap |
Stock Issued |
The fair value of stock issued in noncash financing activities. |
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us-gaap |
Stock Issued During Period, Shares, Employee Benefit Plan |
Number of shares issued during the period to an employee benefit plan, such as a defined contribution or defined benefit plan. |
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us-gaap |
Stock Issued During Period, Shares, Purchase of Assets |
Number of shares of stock issued during the period as part of a transaction to acquire assets that do not qualify as a business combination. |
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us-gaap |
Shares Issued, Shares, Share-based Payment Arrangement, after Forfeiture |
Number, after forfeiture, of shares or units issued under share-based payment arrangement. Excludes shares or units issued under employee stock ownership plan (ESOP). |
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us-gaap |
Shares Issued, Shares, Share-based Payment Arrangement, before Forfeiture |
Number, before forfeiture, of shares issued under share-based payment arrangement. Excludes employee stock ownership plan (ESOP). |
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us-gaap |
Stock Issued During Period, Value, New Issues |
Equity impact of the value of new stock issued during the period. Includes shares issued in an initial public offering or a secondary public offering. |
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us-gaap |
Stock Issued During Period, Value, Other |
Value of shares of stock issued attributable to transactions classified as other. |
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us-gaap |
Stock Issued During Period, Value, Purchase of Assets |
Value of shares of stock issued during the period as part of a transaction to acquire assets that do not qualify as a business combination. |
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us-gaap |
Stock Issued During Period, Value, Restricted Stock Award, Net of Forfeitures |
Value of stock related to Restricted Stock Awards issued during the period, net of the stock value of such awards forfeited. |
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us-gaap |
Shares Issued, Value, Share-based Payment Arrangement, after Forfeiture |
Value, after forfeiture, of shares issued under share-based payment arrangement. Excludes employee stock ownership plan (ESOP). |
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us-gaap |
Stock Issued During Period, Value, Stock Options Exercised |
Value of stock issued as a result of the exercise of stock options. |
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us-gaap |
Tax Adjustments, Settlements, and Unusual Provisions |
Amount of increase (decrease) to previously recorded tax expense. Includes, but is not limited to, significant settlements of income tax disputes, and unusual tax positions or infrequent actions taken by the entity, including tax assessment reversal, and IRS tax settlement. |
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us-gaap |
Tax Credit Carryforward, Valuation Allowance |
Amount of valuation allowance pertaining to the deferred tax asset representing potential future taxable deductions from tax credit carryforwards for which it is more likely than not that a tax benefit will not be realized. |
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us-gaap |
Temporary Equity, Carrying Amount, Attributable to Parent |
Carrying amount, attributable to parent, of an entity's issued and outstanding stock which is not included within permanent equity. Temporary equity is a security with redemption features that are outside the control of the issuer, is not classified as an asset or liability in conformity with GAAP, and is not mandatorily redeemable. Includes any type of security that is redeemable at a fixed or determinable price or on a fixed or determinable date or dates, is redeemable at the option of the holder, or has conditions for redemption which are not solely within the control of the issuer. Includes stock with a put option held by an ESOP and stock redeemable by a holder only in the event of a change in control of the issuer. |
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us-gaap |
Temporary Equity, Carrying Amount, Including Portion Attributable to Noncontrolling Interests |
Carrying amount, attributable to parent and noncontrolling interests, of an entity's issued and outstanding stock which is not included within permanent equity. Temporary equity is a security with redemption features that are outside the control of the issuer, is not classified as an asset or liability in conformity with GAAP, and is not mandatorily redeemable. Includes any type of security that is redeemable at a fixed or determinable price or on a fixed or determinable date or dates, is redeemable at the option of the holder, or has conditions for redemption which are not solely within the control of the issuer. Includes stock with a put option held by an ESOP and stock redeemable by a holder only in the event of a change in control of the issuer. |
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us-gaap |
Temporary Equity, Stock Issued During Period, Value, New Issues |
Value of new stock classified as temporary equity issued during the period. |
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us-gaap |
Treasury Stock, Shares |
Number of common and preferred shares that were previously issued and that were repurchased by the issuing entity and held in treasury on the financial statement date. This stock has no voting rights and receives no dividends. |
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us-gaap |
Treasury Stock, Shares, Acquired |
Number of shares that have been repurchased during the period and are being held in treasury. |
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us-gaap |
Treasury Stock, Value |
The amount allocated to treasury stock. Treasury stock is common and preferred shares of an entity that were issued, repurchased by the entity, and are held in its treasury. |
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us-gaap |
Treasury Stock, Value, Acquired, Cost Method |
Equity impact of the cost of common and preferred stock that were repurchased during the period. Recorded using the cost method. |
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us-gaap |
Unearned ESOP Shares |
Fair value of unearned shares for all classes of common stock and nonredeemable preferred stock (or preferred stock redeemable solely at the option of the issuer) held by an employee stock ownership plan (ESOP). Includes the sale of shares or the issuance treasury shares to an ESOP. |
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us-gaap |
Unrealized Gain (Loss) on Derivatives |
The net change in the difference between the fair value and the carrying value, or in the comparative fair values, of derivative instruments, including options, swaps, futures, and forward contracts, held at each balance sheet date, that was included in earnings for the period. |
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us-gaap |
Unrecognized Tax Benefits, Increase Resulting from Prior Period Tax Positions |
Amount of increase in unrecognized tax benefits resulting from tax positions taken in prior period tax returns. |
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us-gaap |
Unrecognized Tax Benefits, Reduction Resulting from Lapse of Applicable Statute of Limitations |
Amount of decrease in unrecognized tax benefits resulting from lapses of applicable statutes of limitations. |
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us-gaap |
Valuation Allowance, Amount (Deprecated 2013-01-31) |
The amount of the valuation allowance recorded as of the balance sheet date pertaining to the specified deferred tax asset for which an assessment was made that it is more likely than not that all or a portion of such deferred tax asset will not be realized through related deductions on future tax returns. |
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us-gaap |
Valuation Allowance, Deferred Tax Asset, Increase (Decrease), Amount |
Amount of increase (decrease) in the valuation allowance for a specified deferred tax asset. |
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us-gaap |
Warrants and Rights Outstanding |
Value of outstanding derivative securities that permit the holder the right to purchase securities (usually equity) from the issuer at a specified price. |
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us-gaap |
Weighted Average Number of Shares Outstanding, Diluted |
The average number of shares or units issued and outstanding that are used in calculating diluted EPS or earnings per unit (EPU), determined based on the timing of issuance of shares or units in the period. |
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us-gaap |
Weighted Average Number of Shares Outstanding, Basic and Diluted |
Average number of shares or units issued and outstanding that are used in calculating basic and diluted earnings per share (EPS). |
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us-gaap |
Write off of Deferred Debt Issuance Cost |
Write-off of amounts previously capitalized as debt issuance cost in an extinguishment of debt. |
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