us-gaap |
Accounts Payable and Accrued Liabilities (Deprecated 2009-01-31) |
Carrying value as of the balance sheet date of obligations incurred and payable. pertaining to goods and services received from vendors; and for costs that are statutory in nature, are incurred in connection with 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, salaries and benefits, and utilities. For classified balance sheets, used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer); for unclassified balance sheets, used to reflect the total liabilities (regardless of due date). |
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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 |
Adjustments to Additional Paid in Capital, Reallocation of Noncontrolling Interest (Deprecated 2013-01-31) |
Change in additional paid in capital as a result of a reallocation of a subsidiary's stockholders' equity to noncontrolling interest due to the subsidiary issuing stock. This reallocation is from a capital transaction. |
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us-gaap |
Capitalized Costs, Unproved Properties |
Capitalized costs of unproved properties incurred for any combination mineral interests acquisitions and other costs not previously disclosed within this table. |
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us-gaap |
Cash |
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. Excludes cash and cash equivalents within disposal group and discontinued operation. |
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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 |
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, 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 |
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 |
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 |
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, Related Parties |
The increase (decrease) during the reporting period in the obligations due for goods and services provided by the following types of related parties: a parent company and its subsidiaries, subsidiaries of a common parent, an entity and trust for the benefit of employees, such as pension and profit-sharing trusts that are managed by or under the trusteeship of the entities' management, an entity and its principal owners, management, or member of their immediate families, affiliates, or other parties with the ability to exert significant influence. |
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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 |
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 |
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 |
Payments to Explore and Develop Oil and Gas Properties |
The cash outflow for exploration and development of oil and gas properties. It includes cash payments related to development of oil and gas wells drilled at previously untested geologic structures (to determine the presence of oil or gas) and wells drilled at sites where the presence of oil or gas has already been established (to extract the oil or gas). |
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us-gaap |
Preferred Stock, Par or Stated Value Per Share |
Face amount or stated value per share of preferred stock nonredeemable or redeemable solely at the option of the issuer. |
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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, Shares Issued |
Total number of nonredeemable preferred shares (or preferred stock redeemable solely at the option of the issuer) issued to shareholders (includes related preferred shares that were issued, repurchased, and remain in the treasury). May be all or portion of the number of preferred shares authorized. Excludes preferred shares that are classified as debt. |
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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 |
Proved Developed Reserves (Volume) |
Net quantities of an enterprise's interests in proved developed reserves of either crude oil (including condensate and natural gas liquids), natural gas, synthetic oil and gas, or other nonrenewable natural resource that is intended to be upgraded into synthetic oil and gas as of the beginning and the end of the year. "Net" quantities of reserves include those relating to the enterprise's operating and nonoperating interests in properties. Quantities of reserves relating to royalty interests owned are included in "net" quantities if the necessary information is available to the enterprise. "Net" quantities does not include reserves relating to interests of others in properties owned by the enterprise. The unit of measure for reserve quantities is defined as "barrels" for oil and synthetic oil reserves or "cubic feet" or "cubic meters" for natural gas and synthetic gas reserves. |
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us-gaap |
Results of Operations, Transportation Costs |
Includes the cost to prepare and move liquid hydrocarbons and natural gas to their points of sale. |
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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 |
Revenues |
Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss). |
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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 |
Royalty Expense |
Amount of expense related to royalty payments under a contractual arrangement such as payment for mineral and drilling rights and use of technology or intellectual property. |
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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 |
Treasury Stock Reissued at Lower than Repurchase Price |
In cases when treasury stock is reissued at a price lower than the cost to repurchase, the excess difference between the selling price and cost to repurchase is charged against retained earnings (assuming that all APIC arising from treasury stock transactions has first been exhausted). |
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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 |
Unproved Oil and Gas Property, Successful Effort Method |
Oil and Gas properties with unproved reserves under the successful effort method. |
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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 |
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 |
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 |
Depreciation, Depletion and Amortization |
The aggregate expense recognized in the current period that allocates the cost of tangible assets, intangible assets, or depleting assets to periods that benefit from use of the assets. |
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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 |
Net Income (Loss) Attributable to Noncontrolling Interest |
Amount of Net Income (Loss) attributable to noncontrolling interest. |
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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 Loans Payable |
Amount of long-term loans payable classified as other. |
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us-gaap |
Other Long-term Debt |
Amount of long-term debt classified as other. |
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us-gaap |
Other Notes Payable |
Amount of long-term notes payable classified as other. |
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us-gaap |
Other Receivables, Net, Current |
Amount, after allowance, of receivables classified as other, due within one year or the operating cycle, if longer. |
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us-gaap |
Payments for Deposits |
The amount of cash paid for deposits on goods and services during the period; excludes time deposits and deposits with other institutions, which pertain to financial service entities. |
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us-gaap |
Payments to Acquire Equipment on Lease |
The cash outflow for payments to acquire rented equipment which is recorded as an asset. |
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us-gaap |
Payments to Acquire Machinery and Equipment |
The cash outflow for acquisition of machinery and equipment. |
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us-gaap |
Payments to Acquire Oil and Gas Property and Equipment |
The cash outflow to purchase long lived physical asset for use in the normal oil and gas operations and to purchase mineral interests in oil and gas properties not intended for resale. |
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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, Accumulated Depreciation |
Amount of accumulated 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 |
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 |
Adjustments to Additional Paid in Capital, Other |
Amount of other increase (decrease) in additional paid in capital (APIC). |
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us-gaap |
Adjustments to Additional Paid in Capital, Convertible Debt with Conversion Feature |
Amount of increase (decrease) in additional paid in capital (APIC) resulting from recognition of deferred taxes for convertible debt with a beneficial conversion feature. |
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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 and Other Receivables, Net, Current |
Amount, after allowance, receivable from customers, clients, or other third-parties, and receivables classified as other due within one year or the normal operating cycle, if longer. |
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us-gaap |
Accounts Payable and Accrued Liabilities, Current |
Sum of the carrying values as of the balance sheet date of obligations incurred through that date and due within one year (or the operating cycle, if longer), including liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received, taxes, interest, rent and utilities, accrued salaries and bonuses, payroll taxes and fringe benefits. |
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us-gaap |
Accounts Payable and Accrued Liabilities |
Sum of the carrying values as of the balance sheet date of obligations incurred through that date, including liabilities incurred and payable to vendors for goods and services received, taxes, interest, rent and utilities, compensation costs, payroll taxes and fringe benefits (other than pension and postretirement obligations), contractual rights and obligations, and statutory obligations. |
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us-gaap |
Accounts Payable and Other Accrued Liabilities |
Amount of liabilities incurred and payable to vendors for goods and services received, and accrued liabilities classified as other. |
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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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us-gaap |
Accounts Payable, Trade, Current |
Carrying value as of the balance sheet date of obligations 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 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 |
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 |
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 |
Accrued Liabilities, Fair Value Disclosure |
Fair value portion of accrued expenses. |
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us-gaap |
Accrued Royalties |
Carrying value as of the balance sheet date of obligations incurred through that date and payable for royalties. |
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us-gaap |
Accrued Salaries (Deprecated 2009-01-31) |
Carrying value as of the balance sheet date of the obligations incurred through that date and payable for employees' services provided. For classified balance sheets, used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer); for unclassified balance sheets, used to reflect the total liabilities (regardless of due date). |
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us-gaap |
Accrued Salaries, Current |
Carrying value as of the balance sheet date of the obligations incurred through that date and payable for employees' services provided. 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 Depreciation, Depletion and Amortization, Property, Plant, and Equipment |
Amount of accumulated depreciation, depletion and amortization for physical assets used in the normal conduct of business to produce goods and services. |
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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 |
Amortization |
The aggregate amount of recurring noncash expense charged against earnings in the period to allocate the cost of assets over their estimated remaining economic lives. |
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us-gaap |
APIC, Share-based Payment Arrangement, Increase for Cost Recognition |
Amount of increase to additional paid-in capital (APIC) for recognition of cost for award under share-based payment arrangement. |
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us-gaap |
Amortization of Debt Discount (Premium) |
Amount of noncash expense included in interest expense to amortize debt discount and premium associated with the related debt instruments. Excludes amortization of financing costs. Alternate captions include noncash interest expense. |
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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 |
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, 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, Period Increase (Decrease) |
Amount of increase (decrease) in asset retirement obligations. |
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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 |
Bank Overdrafts |
Carrying value as of the balance sheet date of payments made in excess of existing cash balances, which will be honored by the bank but reflected as a loan to the entity. Overdrafts generally have a very short time frame for correction or repayment and are therefore more similar to short-term bank financing than trade financing. |
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us-gaap |
Capitalized Costs, Proved Properties |
Capitalized costs of proved properties incurred for any combination mineral interests acquisitions; wells and related equipment; support equipment and facilities; and uncompleted wells and equipment and other costs not previously disclosed within this table. |
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us-gaap |
Capitalized Costs, Support Equipment and Facilities |
Capitalized costs incurred for support equipment and facilities used in oil and gas producing activities (such as seismic equipment, drilling equipment, construction and grading equipment, vehicles, repair shops, warehouses, supply points, camps, and division, district, or field offices). |
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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 |
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 |
Convertible Preferred Stock Converted to Other Securities |
Value of convertible preferred stock that was converted to other securities. |
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us-gaap |
Convertible Preferred Stock, Nonredeemable or Redeemable, Issuer Option, Value |
Value of outstanding nonredeemable convertible preferred stock or outstanding convertible preferred stock that is redeemable solely at the option of the issuer. |
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us-gaap |
Costs Incurred, Acquisition of Oil and Gas Properties |
Cost incurred, including capitalized costs and costs charged to expense, in acquisition of oil and gas properties. |
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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 |
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 |
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, 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 |
Debt Conversion, Converted Instrument, Amount |
"The value of the financial instrument(s) that the original debt is being converted into in a noncash (or part noncash) transaction. ""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 |
Debt Instrument, Debt Default, Amount |
Amount of outstanding long-term debt or borrowing associated with any securities or credit agreement for which there has been a default in principal, interest, sinking fund, or redemption provisions, or any breach of covenant that existed at the end of the period and subsequently has not been cured. |
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us-gaap |
Debt Instrument, Decrease, Forgiveness |
Decrease for amounts of indebtedness forgiven by the holder of the debt instrument. |
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us-gaap |
Debt Instrument, Unamortized Discount |
Amount, after accumulated amortization, of debt discount. |
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us-gaap |
Deferred Revenue |
Amount of deferred income and obligation to transfer product and service to customer for which consideration has been received or is receivable. |
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us-gaap |
Deferred Revenue and Credits, Noncurrent |
Total carrying amount of consideration received or receivable as of the balance sheet date representing potential earnings that were not as yet recognized as revenue or other forms of income in conformity with GAAP, and which are expected to be recognized as such after one year or beyond the normal operating cycle, if longer. |
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us-gaap |
Deferred Tax Assets, Gross |
Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards. |
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us-gaap |
Deferred Tax Assets, Net of Valuation Allowance |
Amount after allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards. |
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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 |
Depletion of Oil and Gas Properties |
The noncash expense charged against earnings to recognize the consumption of oil and gas reserves that are part of an entities' assets. |
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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 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 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 |
Due to Affiliate |
Amount of payable due to an entity that is affiliated with the reporting entity by means of direct or indirect ownership. |
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us-gaap |
Due to Officers or Stockholders |
Amounts due to recorded owners or owners with a beneficial interest of more than 10 percent of the voting interests or officers of the company. |
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us-gaap |
Due to Other Related Parties, Current |
Amount payable to related parties classified as other, due within one year or the normal operating cycle, if longer. |
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us-gaap |
Due to Related Parties, Current |
Carrying amount as of the balance sheet date of obligations due all related parties. For classified balance sheets, represents the current portion of such liabilities (due within one year or within the normal operating cycle if longer). |
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us-gaap |
Due to Related Parties |
Carrying amount as of the balance sheet date of obligations due all related parties. |
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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 |
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 Accounts Receivable |
The increase (decrease) during the reporting period in amount due within one year (or one business cycle) from customers for the credit sale of goods and services. |
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us-gaap |
Increase (Decrease) in Deferred Revenue |
Amount of increase (decrease) in deferred income and obligation to transfer product and service to customer for which consideration has been received or is receivable. |
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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 |
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 |
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 |
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 |
Foreign Currency Transaction Gain (Loss), Realized |
Amount before tax of foreign currency transaction realized gain (loss) recognized in the income statement. |
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us-gaap |
Foreign Currency Transaction Gain (Loss), Unrealized |
Amount before tax of foreign currency transaction unrealized gain (loss) recognized in the income statement. |
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us-gaap |
Freight Costs (Deprecated 2018-01-31) |
Cost of freight-in, whether based on weight, negotiated freight rates and method of transportation (that is, rail, barge, truck, and so forth). |
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us-gaap |
Furniture and Fixtures, Gross |
Amount before accumulated depreciation of equipment commonly used in offices and stores that have no permanent connection to the structure of a building or utilities. Examples include, but are not limited to, desks, chairs, tables, and bookcases. |
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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 Disposition of Property Plant Equipment, Excluding Oil and Gas Property and Timber Property |
Amount of gain (loss) on sale or disposal of property, plant and equipment assets, excluding oil and gas property and timber property. |
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us-gaap |
Gain (Loss) on Disposition of Intangible Assets |
Amount of gain (loss) on sale or disposal of intangible assets. |
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us-gaap |
Gain (Loss) on Disposition of Property (Deprecated 2013-01-31) |
The gains (losses) included in results of operations resulting from the sale or disposal of property, plant and equipment, which do not qualify for treatment as discontinued operations. This item does not include any gain (loss) recognized on the sale of oil and gas property or timber property. |
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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 Extinguishment of Debt |
Difference between the fair value of payments made and the carrying amount of debt which is extinguished prior to maturity. |
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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 |
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 Noncontrolling Interest |
Amount after tax of income (loss) from continuing operations attributable to the noncontrolling interest. |
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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 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 |
Increase (Decrease) Due from Officers and Stockholders |
The increase (decrease) during the reporting period in receivables to be collected from the reporting entity's executives and owners. |
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us-gaap |
Increase (Decrease) in Interest Payable, Net |
The increase (decrease) during the reporting period in interest payable, which represents the amount owed to note holders, bond holders, and other parties for interest earned on loans or credit extended to the reporting entity. |
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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 |
Increase (Decrease) in Other Deferred Liability |
Amount of increase (decrease) in deferred obligations classified as other. |
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us-gaap |
Increase (Decrease) in Other Operating Liabilities |
Amount of increase (decrease) in operating liabilities classified as other. |
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us-gaap |
Increase (Decrease) in Other Receivables |
Amount of increase (decrease) in receivables classified as other. |
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us-gaap |
Increase (Decrease) in Prepaid Expense |
The increase (decrease) during the reporting period in the amount of outstanding money paid in advance for goods or services that bring economic benefits for future periods. |
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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 Expense |
Amount of the cost of borrowed funds accounted for as interest expense. |
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us-gaap |
Interest Income, Other |
Amount of interest income earned from interest bearing assets classified as other. |
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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 |
Interest Receivable, Noncurrent |
Carrying amount as of the balance sheet date of noncurrent interest earned but not received. Also called accrued interest or accrued interest receivable. |
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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 |
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 |
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 |
Machinery and Equipment, Gross |
Amount before accumulated depreciation of tangible personal property used to produce goods and services, including, but is not limited to, tools, dies and molds, computer and office equipment. |
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us-gaap |
Mineral Properties, Accumulated Depletion |
The accumulated decrease in the carrying value of the mineral properties as a result of mine or mineral production. |
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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 |
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 |
Notes Issued |
The fair value of notes issued in noncash investing and financing activities. |
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|
us-gaap |
Notes Payable |
Including the current and noncurrent portions, aggregate carrying amount of all types of notes payable, as of the balance sheet date, with initial maturities beyond one year or beyond the normal operating cycle, if longer. |
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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. |
View
|
us-gaap |
Notes Payable, Related Parties |
The amount for notes payable (written promise to pay), due to related parties. |
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us-gaap |
Oil and Gas Property, Successful Effort Method, Accumulated Depreciation, Depletion and Amortization |
Amount of accumulated depreciation, depletion and amortization of oil and gas property carried under the successful effort method. Oil and gas property include, but not limited to, the entity's wells and related equipment and facilities. |
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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 Revenue (Deprecated 2018-01-31) |
Aggregate revenue during the period related to oil and gas business activities. |
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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 Income (Loss) |
The net result for the period of deducting operating expenses from operating revenues. |
View
|
us-gaap |
Operating Leases, Future Minimum Payments Due |
Amount of required minimum rental payments for leases having an initial or remaining non-cancelable letter-terms in excess of one year. |
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us-gaap |
Operating Leases, Future Minimum Payments, Due in Rolling Year Five |
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 rolling twelve months following the latest balance sheet. For 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 Rolling Year Four |
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 rolling twelve months following the latest balance sheet. For 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 Rolling Year Three |
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 rolling twelve months following the latest balance sheet. For 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 Rolling Year Two |
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 rolling twelve months following the latest balance sheet. For 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, Next Rolling 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 rolling twelve months following the latest balance sheet. For 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 Accrued Liabilities, Current |
Amount of expenses incurred but not yet paid classified as other, due within one year or the normal operating cycle, if longer. |
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us-gaap |
Other Accrued Liabilities |
Amount of expenses incurred but not yet paid classified as other. |
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|
us-gaap |
Other Assets |
Amount of assets classified as other. |
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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 |
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, before Tax |
Amount before tax, after 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 |
Preferred Stock, Shares Outstanding |
Aggregate share number for all nonredeemable preferred stock (or preferred stock redeemable solely at the option of the issuer) held by stockholders. Does not include preferred shares that have been repurchased. |
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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 |
Amount of asset related to consideration paid in advance for costs that provide economic benefits in future periods, and amount of other assets. |
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us-gaap |
Prepaid Interest |
Amount of asset related to consideration paid in advance for interest that provides economic benefits within a future period of one year or the normal operating cycle, if longer. |
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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 Bank Debt |
The cash inflow from bank borrowing during the year. |
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us-gaap |
Proceeds from Divestiture of Businesses and Interests in Affiliates |
The cash inflow associated with the amount received from the sale of a business segment or subsidiary or sale of an entity that is related to it but not strictly controlled during the period (for example, an unconsolidated subsidiary, affiliate, joint venture or equity method investment). |
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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 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 Notes Payable |
The cash inflow from a borrowing supported by a written promise to pay an obligation. |
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us-gaap |
Proceeds from Related Party Debt |
The cash inflow from a long-term borrowing made 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. Alternate caption: Proceeds from Advances from Affiliates. |
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us-gaap |
Proceeds from (Repayments of) Bank Overdrafts |
The net cash inflow or outflow from the excess drawing from an existing cash balance, which will be honored by the bank but reflected as a loan to the drawer. |
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us-gaap |
Proceeds from Sale of Intangible Assets |
The cash inflow from disposal of asset without physical form usually arising from contractual or other legal rights, excluding goodwill. |
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us-gaap |
Proceeds from Sale of Oil and Gas Property and Equipment |
The cash inflow to dispose of long-lived, physical assets and mineral interests in oil and gas properties used for normal oil and gas operations. |
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us-gaap |
Proceeds from Sale of Productive Assets |
The cash inflow from the sale of property, plant and equipment (capital expenditures), software, and other intangible assets. |
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us-gaap |
Proceeds from Sale of Treasury Stock |
The cash inflow from the issuance of an equity stock that has been previously reacquired by the entity. |
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us-gaap |
Production Tax Expense |
A tax assessed on oil and gas production. |
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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, Gross |
Amount before accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business 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, 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 |
Proved Developed and Undeveloped Reserves, Net |
The net quantity of proved reserves as of the balance sheet date. Proved oil reserves are the estimated quantities of crude oil and natural gas liquids which geological and engineering data demonstrate with reasonable certainty to be recoverable. |
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us-gaap |
Proved Developed and Undeveloped Reserves, Production |
Production of proved reserves. |
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us-gaap |
Proved Developed and Undeveloped Reserves, Revisions of Previous Estimates |
Revisions represent changes in previous estimates of proved reserves, either upward or downward, resulting from new information (except for an increase in proved acreage) normally obtained from development drilling and production history or resulting from change in economic factors. |
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us-gaap |
Proved Oil and Gas Property, Successful Effort Method |
Oil and Gas properties with proved reserves under the successful effort method. |
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us-gaap |
Recognition of Deferred Revenue |
The amount of previously reported deferred or unearned revenue that was recognized as revenue during the period. For cash flows, this element primarily pertains to amortization of deferred credits on long-term arrangements. As a noncash item, it is deducted from net income when calculating cash provided by or used in operations using the indirect method. |
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us-gaap |
Redeemable Convertible Preferred Stock, Carrying Amount (Deprecated 2011-01-31) |
Carrying amount of redeemable convertible preferred stock. |
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|
us-gaap |
Repayments of Notes Payable |
The cash outflow for a borrowing supported by a written promise to pay an obligation. |
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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, Oil and Gas Producing Activities Net Income (Excluding Corporate Overhead and Interest Costs) |
The results of operations for oil and gas producing activities, excluding corporate overhead and interest costs. |
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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 |
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, Options, Expirations in Period |
Number of options or other stock instruments for which the right to exercise has lapsed under the terms of the plan agreements. |
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|
us-gaap |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Net of Forfeitures |
Net number of share options (or share units) granted during the period. |
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|
us-gaap |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number |
Number of options outstanding, including both vested and non-vested options. |
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|
us-gaap |
Shipping, Handling and Transportation Costs (Deprecated 2018-01-31) |
Cost incurred during the reporting period in transporting goods and services to customers. Includes freight-out costs. |
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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 |
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 |
Stock Issued |
The fair value of stock issued in noncash financing activities. |
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us-gaap |
Stock Issued During Period, Shares, Issued for Services |
Number of shares issued in lieu of cash for services contributed to the entity. Number of shares includes, but is not limited to, shares issued for services contributed by vendors and founders. |
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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, 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 |
Development Stage Entities, Stock Issued, Value, Issued for Cash (Deprecated 2015-01-31) |
Value of shares issued as consideration for cash for development stage entities. |
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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 |
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, 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 |
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 |
Stock Issued During Period, Value, Treasury Stock Reissued |
Value of treasury shares or units reissued. Excludes reissuance of shares or units in treasury for award under share-based payment arrangement. |
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us-gaap |
Stock Repurchased During Period, Value |
Equity impact of the value of stock that has been repurchased during the period and has not been retired and is not held in treasury. Some state laws may mandate the circumstances under which an entity may acquire its own stock and prescribe the accounting treatment therefore. This element is used when state law does not recognize treasury stock. |
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