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Company Name: REX ENERGY CORP

CIK: 1397516

Phone: None

Fiscal Year End: None

Entity Type:

SIC: -

Category Type:

Entity Name: None

First Filing Date: 2011-08-05

Last Filing Date: 2018-08-08

SEC Filings

Start	End	Frame	Filed	ACCN	Value	View

2014-01-01	2014-03-31	CY2014Q1I	2014-05-09	0001564590-14-001980	$ 52,984,000	View
2011-04-01	2011-06-30	CY2010Q2	2011-08-05	0001193125-11-211666	$ 44,363,000	View
2011-07-01	2011-09-30	CY2010Q3	2011-11-08	0001193125-11-301998	$ 44,384,000	View
2011-01-01	2011-12-31	CY2010	2012-03-15	0001193125-12-117112	$ 43,930,000	View
2011-01-01	2011-12-31	CY2009	2012-11-13	0001193125-12-465182	$ 43,930,000	View
2012-01-01	2012-03-31	CY2011Q1	2012-05-10	0001193125-12-223720	$ 48,744,000	View
2012-04-01	2012-06-30	CY2011Q4I	2012-08-09	0001193125-12-347435	$ 52,009,000	View
2012-07-01	2012-09-30	CY2012Q3	2012-11-09	0001193125-12-462341	$ 52,036,000	View
2012-10-01	2012-12-31	CY2012Q2I	2013-03-14	0001193125-13-107134	$ 52,278,000	View
2012-10-01	2012-12-31	CY2011Q4	2013-09-03	0001193125-13-355505	$ 52,278,000	View
2013-01-01	2013-03-31	CY2013Q1I	2013-05-09	0001193125-13-210077	$ 52,367,000	View
2013-01-01	2013-03-31	CY2013Q1	2013-09-03	0001193125-13-355517	$ 52,367,000	View
2013-03-28	2013-06-30	CY2013Q2I	2013-08-08	0001193125-13-325950	$ 52,555,000	View
2013-03-28	2013-06-30	CY2013Q2	2013-09-03	0001193125-13-355521	$ 52,555,000	View
2013-07-01	2013-09-30	CY2013Q3	2013-11-08	0001193125-13-434449	$ 52,626,000	View
2013-10-01	2013-12-31	CY2012Q4	2014-03-03	0001193125-14-080312	$ 52,705,000	View
2014-04-01	2014-06-30	CY2014Q2I	2014-08-05	0001564590-14-003140	$ 53,164,000	View
2014-07-01	2014-09-30	CY2014Q3I	2014-11-05	0001564590-14-005014	$ 53,214,000	View
2014-10-01	2014-12-31	CY2013Q4	2015-03-02	0001564590-15-001192	$ 53,261,000	View
2015-01-01	2015-03-31	CY2014Q1	2015-05-11	0001564590-15-003952	$ 54,370,000	View
2015-04-01	2015-06-30	CY2015Q2I	2015-08-10	0001564590-15-006807	$ 54,118,000	View
2015-07-01	2015-09-30	CY2015Q3I	2015-11-09	0001564590-15-010134	$ 53,936,000	View
2015-10-01	2015-12-31	CY2014Q4	2016-03-15	0001564590-16-014863	$ 54,342,000	View
2016-01-01	2016-03-31	CY2016Q1	2016-05-10	0001564590-16-018867	$ 56,003,000	View
2016-04-01	2016-06-30	CY2016Q2I	2016-08-05	0001564590-16-022947	$ 71,804,000	View
2016-07-01	2016-09-30	CY2016Q3I	2016-11-09	0001564590-16-028616	$ 90,803,000	View
2016-10-01	2016-12-31	CY2015Q4	2017-03-15	0001564590-17-004412	$ 97,398,000	View
2017-01-01	2017-03-31	CY2017Q1I	2017-05-10	0001564590-17-010200	$ 97,687,000	View
2017-04-01	2017-06-30	CY2017Q2I	2017-08-09	0001564590-17-016892	$ 9,881,000	View
2017-07-01	2017-09-30	CY2017Q3I	2017-11-14	0001564590-17-023812	$ 9,906,000	View
2017-10-01	2017-12-31	CY2017Q4	2018-04-13	0001564590-18-008166	$ 10,049,000	View
2018-01-01	2018-03-31	CY2018Q1	2018-05-15	0001564590-18-013636	$ 10,464,000	View
2018-04-01	2018-06-30	CY2018Q2	2018-08-08	0001564590-18-020532	$ 10,708,000	View

SEC Facts By Type

Type	Name	Description	View

us-gaap	Interest Income (Expense), Nonoperating, Net	The net amount of nonoperating interest income (expense).	View
us-gaap	Long-term Debt and Lease Obligation	Amount of long-term debt and lease obligation, classified as noncurrent.	View
us-gaap	Other Nonoperating Expense	Amount of expense related to nonoperating activities, classified as other.	View
us-gaap	Other Nonoperating Income	Amount of income related to nonoperating activities, classified as other.	View
us-gaap	Other Nonoperating Income (Expense)	Amount of income (expense) related to nonoperating activities, classified as other.	View
us-gaap	Other Revenue, Net (Deprecated 2018-01-31)	Amount, after sales adjustments, returns, allowances, and discounts, of revenue classified as other.	View
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.	View
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).	View
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.	View
us-gaap	Accretion Expense	Amount recognized for the passage of time, typically for liabilities, that have been discounted to their net present values. Excludes accretion associated with asset retirement obligations.	View
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.	View
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).	View
us-gaap	Accumulated Amortization, Debt Issuance Costs	Amount of accumulated amortization of debt issuance costs.	View
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.	View
us-gaap	Additional Paid in Capital, Common Stock	Value received from shareholders in common stock-related transactions that are in excess of par value or stated value and amounts received from other stock-related transactions. Includes only common stock transactions (excludes preferred stock transactions). May be called contributed capital, capital in excess of par, capital surplus, or paid-in capital.	View
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.	View
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.	View
us-gaap	Adjustments to Additional Paid in Capital, Stock Split	Amount of decrease in additional paid in capital (APIC) resulting from a stock split in which per-share par value or stated value is not changed proportionately.	View
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.	View
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.	View
us-gaap	Area of Land	Area of land held.	View
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.	View
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.	View
us-gaap	Asset Retirement Obligation, Liabilities Incurred	Amount of asset retirement obligations incurred during the period.	View
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.	View
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.	View
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.	View
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.	View
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.	View
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.	View
us-gaap	Disposal Group, Including Discontinued Operation, Assets, Current	Amount classified as assets attributable to disposal group held for sale or disposed of, expected to be disposed of within one year or the normal operating cycle, if longer.	View
us-gaap	Bankruptcy Claims, Amount Paid to Settle Claims	Amount paid to settle bankruptcy claim.	View
us-gaap	Business Exit Costs	Amount of expenses associated with exit or disposal activities pursuant to an authorized plan. Includes, but is not limited to, one-time termination benefits, termination of an operating lease or other contract, consolidating or closing facilities, and relocating employees, and termination benefits associated with an ongoing benefit arrangement. Excludes expenses associated with special or contractual termination benefits, a discontinued operation or an asset retirement obligation.	View
us-gaap	Capital Expenditure, Discontinued Operations	Amount of capital expenditure attributable to discontinued operations.	View
us-gaap	Capital Expenditures Incurred but Not yet Paid	Future cash outflow to pay for purchases of fixed assets that have occurred.	View
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.	View
us-gaap	Capitalized Exploratory Well Cost, Additions Pending Determination of Proved Reserves	Additions to capitalized exploratory well costs that were added during the reporting period pending the determination of proved reserves.	View
us-gaap	Capitalized Exploratory Well Cost, Charged to Expense (Deprecated 2016-01-31)	Capitalized exploratory well costs that were expensed during the year because proved reserves were not found at the exploratory well.	View
us-gaap	Capitalized Exploratory Well Cost, Charged to Expense	Amount of expense for capitalized exploratory well costs for which proved reserves were not found at the exploratory well.	View
us-gaap	Capitalized Exploratory Well Costs	The amount of capitalized exploratory well costs that is pending the determination of proved reserves. This does not include amounts that were capitalized and subsequently expensed in the same annual period.	View
us-gaap	Capitalized Exploratory Well Costs that Have Been Capitalized for Period Greater than One Year	The amount of exploratory well costs that have been capitalized for a period of greater than one year after the completion of drilling.	View
us-gaap	Capitalized Exploratory Well Costs that Have Been Capitalized for Period of One Year or Less	The amount of exploratory well costs that have been capitalized for a period of one year or less after the completion of drilling.	View
us-gaap	Capital Lease Obligations	Amount equal to the present value (the principal) at the beginning of the lease term of minimum lease payments during the lease term (excluding that portion of the payments representing executory costs such as insurance, maintenance, and taxes to be paid by the lessor, together with any profit thereon) net of payments or other amounts applied to the principal through the balance sheet date.	View
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.	View
us-gaap	Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Including Disposal Group and Discontinued Operations	Amount of cash and cash equivalents, and cash and cash equivalents restricted to withdrawal or usage; including, but not limited to, disposal group and discontinued operations. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits. Cash equivalents include, but are not limited to, short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.	View
us-gaap	Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect	Amount of increase (decrease) in cash, cash equivalents, and cash and cash equivalents restricted to withdrawal or usage; including effect from exchange rate change. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits. Cash equivalents include, but are not limited to, short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.	View
us-gaap	Cash, Period Increase (Decrease)	Amount of increase (decrease) in cash. Cash is 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. Includes effect from exchange rate changes.	View
us-gaap	Common Stock Dividends, Shares	Number of shares of common stock issued as dividends during the period. Excludes stock splits.	View
us-gaap	Common Stock, Par or Stated Value Per Share	Face amount or stated value per share of common stock.	View
us-gaap	Common Stock, Shares Authorized	The maximum number of common shares permitted to be issued by an entity's charter and bylaws.	View
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.	View
us-gaap	Common Stock, Shares, Outstanding	Number of shares of common stock outstanding. Common stock represent the ownership interest in a corporation.	View
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.	View
us-gaap	Construction in Progress, Gross	Amount of structure or a modification to a structure under construction. Includes recently completed structures or modifications to structures that have not been placed into service.	View
us-gaap	Contribution of Property	Value of property contributed in noncash investing and financing activities.	View
us-gaap	Deferred Tax Assets, Gross, Current	Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards classified as current.	View
us-gaap	Costs Incurred, Development Costs	Development costs incurred, including capitalized costs and costs charged to expense, in oil and gas activities.	View
us-gaap	Costs Incurred, Exploration Costs	Exploration costs incurred, including capitalized costs and costs charged to expense, in oil and gas activities.	View
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.	View
us-gaap	Current Federal Tax Expense (Benefit)	Amount of current federal tax expense (benefit) pertaining to income (loss) from continuing operations.	View
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.	View
us-gaap	Debt and Lease Obligation	Amount of short-term and long-term debt and lease obligation.	View
us-gaap	Debt Conversion, Converted Instrument, Shares Issued	"The number of shares issued in exchange for the original debt being converted in a noncash (or part noncash) transaction. ""Part noncash"" refers to that portion of the transaction not resulting in cash receipts or payments in the period."	View
us-gaap	Debt Instrument, Basis Spread on Variable Rate (Deprecated 2013-01-31)	The percentage points added to the reference rate to compute the variable rate on the debt instrument.	View
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.	View
us-gaap	Debt Instrument, Unamortized Discount	Amount, after accumulated amortization, of debt discount.	View
us-gaap	Debt Instrument, Unamortized Discount (Premium), Net	Amount, after accumulated amortization, of debt discount (premium).	View
us-gaap	Debt Instrument, Unamortized Premium	Amount, after accumulated amortization, of debt premium.	View
us-gaap	Debt Issuance Cost (Deprecated 2016-01-31)	Amount of debt issuance costs (for example, but not limited to, legal, accounting, broker, and regulatory fees).	View
us-gaap	Debtor-in-Possession Financing, Borrowings Outstanding	Amount of debtor-in-possession borrowings outstanding.	View
us-gaap	Debtor Reorganization Items, Debtor-in-Possession Facility Financing Costs	Amount of reorganization items related to debtor-in-possession facility financing costs.	View
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.	View
us-gaap	Debtor Reorganization Items, Other Expense (Income)	Amount of expense (income) related to reorganization items classified as other.	View
us-gaap	Debtor Reorganization Items, Write-off of Debt Issuance Costs and Debt Discounts	Amount of write-off of debt issuance costs and debt discounts related to prepetition debt obligations.	View
us-gaap	Deferred Costs and Other Assets	Amount of deferred cost assets and assets classified as other.	View
us-gaap	Deferred Federal Income Tax Expense (Benefit)	Amount of deferred federal income tax expense (benefit) pertaining to income (loss) from continuing operations.	View
us-gaap	Debt Issuance Costs, Gross	Amount, before accumulated amortization, of debt issuance costs. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs.	View
us-gaap	Deferred Tax Assets, Deferred Income	Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from deferred income.	View
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.	View
us-gaap	Deferred Tax Assets, Net, Current	Amount, after allocation of valuation allowances and deferred tax liability, of deferred tax asset attributable to deductible differences and carryforwards, netted by jurisdiction and classified as current.	View
us-gaap	Deferred Tax Assets, Net, Noncurrent	Amount, after allocation of valuation allowances and deferred tax liability, of deferred tax asset attributable to deductible differences and carryforwards, with jurisdictional netting and classified as noncurrent.	View
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.	View
us-gaap	Deferred Tax Assets, Net of Valuation Allowance, Current	Amount after allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards classified as current.	View
us-gaap	Deferred Tax Assets, Net of Valuation Allowance, Noncurrent	Amount after allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards classified as noncurrent.	View
us-gaap	Deferred Tax Assets, Operating Loss Carryforwards	Amount before allocation of valuation allowances of deferred tax asset attributable to deductible operating loss carryforwards.	View
us-gaap	Deferred Tax Assets, Operating Loss Carryforwards, Domestic	Amount before allocation of valuation allowances of deferred tax asset attributable to deductible domestic operating loss carryforwards. Excludes state and local operating loss carryforwards.	View
us-gaap	Deferred Tax Assets, Operating Loss Carryforwards, State and Local	Amount before allocation of valuation allowances of deferred tax asset attributable to deductible state and local operating loss carryforwards.	View
us-gaap	Deferred Tax Assets, Other	Amount, before allocation of valuation allowance, of deferred tax asset attributable to deductible temporary differences, classified as other.	View
us-gaap	Deferred Tax Assets, Other Tax Carryforwards	Amount, before allocation of valuation allowance, of deferred tax asset attributable to deductible tax carryforwards, classified as other.	View
us-gaap	Deferred Tax Assets, Tax Credit Carryforwards, Alternative Minimum Tax	Amount before allocation of valuation allowances of deferred tax asset attributable to deductible alternative minimum tax credit carryforwards.	View
us-gaap	Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits	Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from compensation and benefits costs.	View
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.	View
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.	View
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.	View
us-gaap	Deferred Tax Assets, Valuation Allowance, Current	Amount of valuation allowance of deferred tax asset attributable to deductible temporary differences and carryforwards, classified as current.	View
us-gaap	Deferred Tax Assets, Valuation Allowance, Noncurrent	Amount of valuation allowance of deferred tax asset attributable to deductible temporary differences and carryforwards, classified as noncurrent.	View
us-gaap	Deferred Tax Liabilities, Net	Amount, after deferred tax asset, of deferred tax liability attributable to taxable differences without jurisdictional netting.	View
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.	View
us-gaap	Deferred Tax Liabilities, Gross, Current	Amount of deferred tax liability attributable to taxable temporary differences classified as current.	View
us-gaap	Deferred Tax Liabilities, Gross, Noncurrent	Gross amount of noncurrent deferred tax liabilities, which result from applying the applicable tax rate to taxable temporary differences pertaining to each jurisdiction to which the entity is obligated to pay income tax.	View
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.	View
us-gaap	Deferred Tax Liabilities, Other	Amount of deferred tax liability attributable to taxable temporary differences classified as other.	View
us-gaap	Defined Benefit Plan, Plan Assets, Contributions by Employer	Amount of contribution received by defined benefit plan from employer which increases plan assets.	View
us-gaap	Derivative Asset	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. Includes assets not subject to a master netting arrangement and not elected to be offset.	View
us-gaap	Derivative Assets (Liabilities), at Fair Value, Net	Fair values as of the balance sheet date of the net amount of all assets and liabilities resulting from contracts that meet the criteria of being accounted for as derivative instruments.	View
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.	View
us-gaap	Derivative Liability, Fair Value, Gross Liability	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 elected not to be offset. Excludes liabilities not subject to a master netting arrangement.	View
us-gaap	Derivative, Fair Value, Net	Fair value of the assets less the liabilities of a derivative or group of derivatives.	View
us-gaap	Derivative, Gain (Loss) on Derivative, Net	Amount of increase (decrease) in the fair value of derivatives recognized in the income statement.	View
us-gaap	Derivative Instruments and Hedges, Assets	Carrying amount as of the balance sheet date of the asset arising from derivative instruments and hedging activities, which are expected to be converted into cash or otherwise disposed of within a year or the normal operating cycle, if longer.	View
us-gaap	Derivative Instruments and Hedges, Liabilities	Sum as of the balance sheet date of the (a) fair values of all liabilities resulting from contracts that meet the criteria of being accounted for as derivative instruments, and (b) the carrying amounts of the liabilities arising from financial instruments or contracts used to mitigate a specified risk (hedge), and which are expected to be extinguished or otherwise disposed of within a year or the normal operating cycle, if longer, net of the effects of master netting arrangements.	View
us-gaap	Derivative Instruments and Hedges, Liabilities, Noncurrent	Fair value of liability arising from contracts that meet the criteria of being accounted for as derivative instruments, financial instrument or contract used to mitigate a specified risk (hedge), energy marketing activities (trading activities), expected to be settled after one year or beyond the normal operating cycle, if longer. Examples of energy marketing activities include, but are not limited to, trading of electricity, coal, natural gas and oil using financial instruments, including, but not limited to, forward contracts, options and swaps.	View
us-gaap	Derivative Instruments and Hedges, Noncurrent	Carrying amount as of the balance sheet date of the assets arising from derivative contracts and hedging activities, which are expected to be converted into cash or otherwise disposed of after a year or beyond the normal operating cycle, if longer.	View
us-gaap	Derivative Instruments Not Designated as Hedging Instruments, Gain (Loss), Net	Amount of realized and unrealized gain (loss) of derivative instruments not designated or qualifying as hedging instruments.	View
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.	View
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.	View
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.	View
us-gaap	Discontinued Operation, Income (Loss) from Discontinued Operation, Net of Tax, Per Basic Share	Per basic share amount, after tax, of income (loss) from the day-to-day business activities of the discontinued operation.	View
us-gaap	Discontinued Operation, Income (Loss) from Discontinued Operation, Net of Tax, Per Diluted Share	Per diluted share amount, after tax, of income (loss) from the day-to-day business activities of the discontinued operation.	View
us-gaap	Escrow Deposits Related to Property Sales	Escrow deposits related to property sales in noncash investing and financing activities.	View
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.	View
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.	View
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.	View
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.	View
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.	View
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.	View
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.	View
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.	View
us-gaap	Disposal Group, Including Discontinued Operation, Cash and Cash Equivalents	Amount classified as cash and cash equivalents attributable to disposal group held for sale or disposed of.	View
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).	View
us-gaap	Dividends, Preferred Stock, Stock	Amount of paid and unpaid preferred stock dividends declared with the form of settlement in stock.	View
us-gaap	Earnings Per Share, Basic	The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period.	View
us-gaap	Earnings Per Share, Diluted	The amount of net income (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.	View
us-gaap	Effective Income Tax Rate Reconciliation, Percent	Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.	View
us-gaap	Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent	Percentage of domestic federal statutory tax rate applicable to pretax income (loss).	View
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.	View
us-gaap	Share-based Payment Arrangement, Expense, Tax Benefit	Amount of tax benefit for recognition of expense of award under share-based payment arrangement.	View
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.	View
us-gaap	Extinguishment of Debt, Gain (Loss), Per Share, Net of Tax	Per share impact of the gain (loss) on the extinguishment of debt, net of applicable taxes.	View
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.	View
us-gaap	Federal Income Tax Expense (Benefit), Continuing Operations	Amount of current and deferred federal income tax expense (benefit) attributable to income (loss) from continuing operations.	View
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.	View
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.	View
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.	View
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.	View
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.	View
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.	View
us-gaap	Gain (Loss) on Contract Termination	Gain (loss) related to the termination of a contract between the parties. The termination may be due to many causes including early termination of a lease by a lessee, a breach of contract by one party, or a failure to perform.	View
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.	View
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.	View
us-gaap	Gain (Loss) on Disposition of Assets	Amount of gain (loss) on sale or disposal of assets, including but not limited to property plant and equipment, intangible assets and equity in securities of subsidiaries or equity method investee.	View
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.	View
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.	View
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.	View
us-gaap	Gains (Losses) on Recourse Debt	Amount represents the difference between the cash acquisition price of the debt and the net carrying amount of the debt at the time of its extinguishment.	View
us-gaap	Gains (Losses) on Restructuring of Debt	For a debtor, the aggregate gain (loss) recognized on the restructuring of payables arises from the difference between the book value of the debt before the restructuring and the fair value of the payments on the debt after restructuring is complete.	View
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.	View
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.	View
us-gaap	Guarantor Obligations, Maximum Exposure, Undiscounted	Maximum potential amount of future payments (undiscounted) the guarantor could be required to make under the guarantee or each group of similar guarantees before reduction for potential recoveries under recourse or collateralization provisions.	View
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.	View
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.	View
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.	View
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.	View
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.	View
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.	View
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.	View
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.	View
us-gaap	Income (Loss) from Continuing Operations, Per Basic Share	The amount of net income (loss) from continuing operations per each share of common stock or unit outstanding during the reporting period.	View
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.	View
us-gaap	Income (Loss) from Discontinued Operations and Disposal of Discontinued Operations, Net of Tax, Per Basic Share	Per basic 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.	View
us-gaap	Income (Loss) from Discontinued Operations and Disposal of Discontinued Operations, Net of Tax, Per Diluted Share	Per 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.	View
us-gaap	Income (Loss) from Equity Method Investments	Amount of income (loss) for proportionate share of equity method investee's income (loss).	View
us-gaap	Income Tax Expense (Benefit)	Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.	View
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.	View
us-gaap	Income Taxes Paid, Net	The amount of cash paid during the current period to foreign, federal, state, and local authorities as taxes on income, net of any cash received during the current period as refunds for the overpayment of taxes.	View
us-gaap	Income Taxes Receivable, Current	Carrying amount due within one year of the balance sheet date (or one operating cycle, if longer) from tax authorities as of the balance sheet date representing refunds of overpayments or recoveries based on agreed-upon resolutions of disputes.	View
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.	View
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.	View
us-gaap	Increase (Decrease) in Asset Retirement Obligations	The increase (decrease) during the reporting period in the carrying amount of asset retirement obligations.	View
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.	View
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.	View
us-gaap	Increase (Decrease) in Income Taxes Receivable	The increase (decrease) during the reporting period in income taxes receivable, which represents the amount due from tax authorities for refunds of overpayments or recoveries of income taxes paid.	View
us-gaap	Increase (Decrease) in Other Accrued Liabilities	The increase (decrease) during the reporting period in other expenses incurred but not yet paid.	View
us-gaap	Increase (Decrease) in Other Operating Assets	Amount of increase (decrease) in operating assets classified as other.	View
us-gaap	Increase (Decrease) in Other Operating Assets and Liabilities, Net	Amount of increase (decrease) in operating assets after deduction of operating liabilities classified as other.	View
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.	View
us-gaap	Incremental Common Shares Attributable to Dilutive Effect of Conversion of Preferred Stock	Additional shares included in the calculation of diluted EPS as a result of the potentially dilutive effect of convertible preferred stock using the if-converted method.	View
us-gaap	Incremental Common Shares Attributable to Dilutive Effect of Nonvested Shares with Forfeitable Dividends	Number of additional shares included in diluted EPS for potentially dilutive effect of nonvested equity-based payment award containing forfeitable rights to dividends or dividend equivalents, whether paid or unpaid.	View
us-gaap	Incremental Common Shares Attributable to Dilutive Effect of Share-based Payment Arrangements	Additional shares included in the calculation of diluted EPS as a result of the potentially dilutive effect of share based payment arrangements using the treasury stock method.	View
us-gaap	Interest Costs Capitalized	Amount of interest capitalized during the period.	View
us-gaap	Interest Expense	Amount of the cost of borrowed funds accounted for as interest expense.	View
us-gaap	Interest Expense, Debt	Amount of the cost of borrowed funds accounted for as interest expense for debt.	View
us-gaap	Interest Paid, Excluding Capitalized Interest, Operating Activities	Amount of cash paid for interest, excluding capitalized interest, classified as operating activity. Includes, but is not limited to, payment to settle zero-coupon bond for 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.	View
us-gaap	Investment Income, Interest	Amount before accretion (amortization) of purchase discount (premium) of interest income on nonoperating securities.	View
us-gaap	Letters of Credit Outstanding, Amount	The total amount of the contingent obligation under letters of credit outstanding as of the reporting date.	View
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.	View
us-gaap	Liabilities and Equity	Amount of liabilities and equity items, including the portion of equity attributable to noncontrolling interests, if any.	View
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.	View
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.	View
us-gaap	Disposal Group, Including Discontinued Operation, Liabilities	Amount classified as liabilities attributable to disposal group held for sale or disposed of.	View
us-gaap	Disposal Group, Including Discontinued Operation, Liabilities, Current	Amount classified as liabilities attributable to disposal group held for sale or disposed of, expected to be disposed of within one year or the normal operating cycle, if longer.	View
us-gaap	Liabilities Subject to Compromise	Total amount of liabilities subject to compromise.	View
us-gaap	Liabilities Subject to Compromise, Accounts Payable and Accrued Liabilities	The amount of trade accounts payable included in liabilities subject to compromise.	View
us-gaap	Liabilities Subject to Compromise, Debt and Accrued Interest	The amount of debt and related accrued interest included in liabilities subject to compromise.	View
us-gaap	Liabilities Subject to Compromise, Environmental Contingencies	The amount of environmental remediation liabilities included in liabilities subject to compromise.	View
us-gaap	Line of Credit Facility, Amount Outstanding (Deprecated 2014-01-31)	Amount borrowed under the credit facility as of the balance sheet date.	View
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.	View
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.	View
us-gaap	Long-term Debt and Capital Lease Obligations, Maturities, Repayments of Principal in Year Five	Principal amount of long-term debt and capital lease obligation maturing 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.	View
us-gaap	Long-term Debt and Capital Lease Obligations, Maturities, Repayments of Principal in Year Four	Principal amount of long-term debt and capital lease obligation maturing 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.	View
us-gaap	Long-term Debt and Capital Lease Obligations, Maturities, Repayments of Principal in Year Three	Principal amount of long-term debt and capital lease obligation maturing 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.	View
us-gaap	Long-term Debt and Capital Lease Obligations, Maturities, Repayments of Principal in Year Two	Principal amount of long-term debt and capital lease obligation maturing 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.	View
us-gaap	Long-term Debt and Capital Lease Obligations, Maturities, Repayments of Principal Remainder of Fiscal Year	Amount of long-term debt and capital lease obligation maturing in the remainder of the fiscal year following the latest fiscal year ended.	View
us-gaap	Long-term Debt and Capital Lease Obligations, Repayments of Principal in Next Twelve Months	Principal amount of long-term debt and capital lease obligation maturing 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.	View
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.	View
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).	View
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).	View
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).	View
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).	View
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).	View
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).	View
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.	View
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.	View
us-gaap	Loss Contingency, New Claims Filed, Number	The total number of new claims filed pertaining to a loss contingency during the period.	View
us-gaap	Loss Contingency, Number of Plaintiffs	Number of plaintiffs that have filed claims pertaining to a loss contingency.	View
us-gaap	Loss on Contract Termination	The loss recognized on termination of a contract.	View
us-gaap	Natural Gas Midstream Revenue (Deprecated 2018-01-31)	Midstream refers to those gas industry activities that fall between exploration and production (upstream) and refining and marketing (downstream). It may be applied to the gathering, processing, transmission and storage of natural gas; including the treating of natural gas to remove impurities, along with the sale of by-products such as residue gas, natural gas liquids and condensate.	View
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.	View
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.	View
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.	View
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.	View
us-gaap	Net Income (Loss) Attributable to Noncontrolling Interest	Amount of Net Income (Loss) attributable to noncontrolling interest.	View
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.	View
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.	View
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.	View
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).	View
us-gaap	Notional Amount of Interest Rate Derivatives (Deprecated 2013-01-31)	Aggregate notional amount of interest rate derivatives, which relates to the currency amount specified in the interest rate derivative instruments.	View
us-gaap	Number of Reportable Segments	Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements.	View
us-gaap	Oil and Gas Reclamation Liability, Noncurrent	Amount of a reclamation liability that is associated with a legal obligation for the closure and reclamation of oil and gas properties.	View
us-gaap	Oil and Gas Sales Revenue (Deprecated 2018-01-31)	Revenue from the sale of oil and gas during the period.	View
us-gaap	Operating Costs and 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. Excludes Selling, General and Administrative Expense.	View
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.	View
us-gaap	Operating Income (Loss)	The net result for the period of deducting operating expenses from operating revenues.	View
us-gaap	Operating Lease, Expense	Amount of operating lease expense. Excludes sublease income.	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.	View
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.	View
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.	View
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.	View
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.	View
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.	View
us-gaap	Operating Leases, Future Minimum Payments, Remainder of Fiscal Year	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 remainder of the 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.	View
us-gaap	Operating Leases, Rent Expense, Net	Rental expense for the reporting period incurred under operating leases, including minimum and any contingent rent expense, net of related sublease income.	View
us-gaap	Operating Loss Carryforwards	Amount of operating loss carryforward, before tax effects, available to reduce future taxable income under enacted tax laws.	View
us-gaap	Other Accrued Liabilities, Noncurrent	Amount of expenses incurred but not yet paid classified as other, due after one year or the normal operating cycle, if longer.	View
us-gaap	Other Assets, Noncurrent	Amount of noncurrent assets classified as other.	View
us-gaap	Other Commitment	Minimum amount of other commitment not otherwise specified in the taxonomy. Excludes commitments explicitly modeled in the taxonomy, including but not limited to, long-term and short-term purchase commitments, recorded and unrecorded purchase obligations, supply commitments, registration payment arrangements, leases, debt, product warranties, guarantees, environmental remediation obligations, and pensions.	View
us-gaap	Other Commitment, to be Paid, after Year Five	Amount of commitment classified as other to be paid 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).	View
us-gaap	Other Commitment, to be Paid, Year Five	Amount of commitment classified as other to be paid 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).	View
us-gaap	Other Commitment, to be Paid, Year Four	Amount of commitment classified as other to be paid 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).	View
us-gaap	Other Commitment, to be Paid, Year One	Amount of commitment classified as other to be paid 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).	View
us-gaap	Other Commitment, to be Paid, Year Two	Amount of commitment classified as other to be paid 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).	View
us-gaap	Other Commitment, to be Paid, Year Three	Amount of commitment classified as other to be paid 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).	View
us-gaap	Other Commitment, to be Paid, Remainder of Fiscal Year	Amount of commitment classified as other to be paid in remainder of current fiscal year.	View
us-gaap	Other Cost and Expense, Operating	The total amount of other operating cost and expense items that are associated with the entity's normal revenue producing operation.	View
us-gaap	Other Liabilities, Noncurrent	Amount of liabilities classified as other, due after one year or the normal operating cycle, if longer.	View
us-gaap	Other Long-term Debt, Noncurrent	Amount of long-term debt classified as other, payable after one year or the operating cycle, if longer.	View
us-gaap	Other Noncash Expense	Amount of expense or loss included in net income that result in no cash flow, classified as other.	View
us-gaap	Other Noncash Income (Expense)	Amount of income (expense) included in net income that results in no cash inflow (outflow), classified as other.	View
us-gaap	Partners' Capital Account, Contributions	Total contributions made by each class of partners (i.e., general, limited and preferred partners).	View
us-gaap	Partners' Capital Account, Distributions	Total distributions to each class of partners (i.e., general, limited and preferred partners).	View
us-gaap	Payments for (Proceeds from) Derivative Instrument, Investing Activities	The net cash outflow or inflow from derivative instruments during the period, which are classified as investing activities, excluding those designated as hedging instruments.	View
us-gaap	Payments for (Proceeds from) Other Investing Activities	Amount of cash (inflow) outflow from investing activities classified as other.	View
us-gaap	Payments for (Proceeds from) Productive Assets	The net cash outflow or inflow from purchases, sales and disposals of property, plant and equipment and other productive assets, including intangibles.	View
us-gaap	Payments of Debt Issuance Costs	The cash outflow paid to third parties in connection with debt origination, which will be amortized over the remaining maturity period of the associated long-term debt.	View
us-gaap	Payments of Distributions to Affiliates	The distributions of earnings to an entity that is affiliated with the reporting entity by means of direct or indirect ownership.	View
us-gaap	Payments of Dividends	Cash outflow in the form of capital distributions and dividends to common shareholders, preferred shareholders and noncontrolling interests.	View
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.	View
us-gaap	Payment, Tax Withholding, Share-based Payment Arrangement	Amount of cash outflow to satisfy grantee's tax withholding obligation for award under share-based payment arrangement.	View
us-gaap	Payments to Acquire Equity Method Investments	The cash outflow associated with the purchase of or advances to an 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.	View
us-gaap	Payments to Acquire Interest in Joint Venture	The cash outflow associated with the investment in or advances to an entity in which the reporting entity shares control of the entity with another party or group.	View
us-gaap	Payments to Acquire Mineral Rights	The cash outflow from the acquisition of a mineral right which is the right to extract a mineral from the earth or to receive payment, in the form of royalty, for the extraction of minerals.	View
us-gaap	Payments to Acquire Oil and Gas Property	The cash outflow to purchase of mineral interests in oil and gas properties for use in the normal oil and gas operations and not intended for resale.	View
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.	View
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).	View
us-gaap	Payments to Noncontrolling Interests	Amount of cash outflow to a noncontrolling interest. Includes, but not limited to, reduction of noncontrolling interest ownership. Excludes dividends paid to the noncontrolling interest.	View
us-gaap	Plan of Reorganization, Amount of Prepetition Obligations to be Settled in Cash	Amount of prepetition liabilities to be settled in cash.	View
us-gaap	Preferred Stock, Amount of Preferred Dividends in Arrears	Aggregate amount of cumulative preferred dividends in arrears.	View
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.	View
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.	View
us-gaap	Preferred Stock, Dividends Per Share, Declared	Aggregate dividends declared during the period for each share of preferred stock outstanding.	View
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.	View
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.	View
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.	View
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.	View
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.	View
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.	View
us-gaap	Proceeds from Fees Received	Cash received for fees during the current period. This element excludes cash proceeds from license fees.	View
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.	View
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.	View
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).	View
us-gaap	Proceeds from Partnership Contribution	The cash inflow from the capital received in cash from a partner in a partnership during the period.	View
us-gaap	Proceeds from Removal Costs	Cash inflow resulting from recoveries, by any means, against the cost of disposing of plant, whether by demolishing, dismantling, abandoning, sale, and so forth during the period.	View
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.	View
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.	View
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.	View
us-gaap	Proceeds from Stock Options Exercised	Amount of cash inflow from exercise of option under share-based payment arrangement.	View
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.	View
us-gaap	Projects that have Exploratory Well Costs that have been Capitalized for Period Greater than One Year, Number of Projects	The number of projects for which exploratory well costs have been capitalized for a period of greater than one year after the completion of drilling.	View
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.	View
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.	View
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.	View
us-gaap	Proved Developed and Undeveloped Reserve, Extension and Discovery (Energy)	Energy measure of increase in quantity of proved reserve of oil and gas resulting from the extension of the proved acreage of previously discovered reservoir or discovery of new field with proved reserve or of new reservoir of proved reserve in old field, stated in a unit of energy. For example, but not limited to, barrel of oil equivalents (BOE) or one thousand cubic feet of natural gas equivalent (Mcfe).	View
us-gaap	Proved Developed and Undeveloped Reserve, Net (Energy)	Energy measure of proved reserve of oil and gas, stated in a unit of energy. For example, but not limited to, barrel of oil equivalents (BOE) or one thousand cubic feet of natural gas equivalent (Mcfe).	View
us-gaap	Proved Developed and Undeveloped Reserve, Production (Energy)	Energy measure of decrease in quantity of proved reserve of oil and gas resulting from production, stated in a unit of energy. For example, but not limited to, barrel of oil equivalents (BOE) or one thousand cubic feet of natural gas equivalent (Mcfe).	View
us-gaap	Proved Developed and Undeveloped Reserve, Purchase of Mineral in Place (Energy)	Energy measure of increase in quantity of proved reserve of oil and gas resulting from purchase of mineral in place, stated in a unit of energy. For example, but not limited to, barrel of oil equivalents (BOE) or one thousand cubic feet of natural gas equivalent (Mcfe).	View
us-gaap	Proved Developed and Undeveloped Reserve, Revision of Previous Estimate (Energy)	Energy measure of increase (decrease) in quantity of proved reserve of oil and gas related to revision of a previous estimate resulting from new information, except for an increase in proved acreage, or change in economic factors, stated in a unit of energy. For example, but not limited to, barrel of oil equivalents (BOE) or one thousand cubic feet of natural gas equivalent (Mcfe).	View
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.	View
us-gaap	Proved Developed and Undeveloped Reserves, Sale of Mineral in Place (Energy)	Energy measure of decrease in quantity of proved reserve of oil and gas resulting from sale of mineral in place, stated in a unit of energy. For example, but not limited to, barrel of oil equivalents (BOE) or one thousand cubic feet of natural gas equivalent (Mcfe).	View
us-gaap	Proved Developed Reserves (Energy)	Energy measure of interests in proved developed reserves of crude oil, including condensate and natural gas liquids, natural gas, synthetic oil and gas, or other nonrenewable natural resource that is intended to be upgraded into synthetic oil and gas.	View
us-gaap	Proved Oil and Gas Property, Successful Effort Method	Oil and Gas properties with proved reserves under the successful effort method.	View
us-gaap	Proved Undeveloped Reserves (Energy)	Energy measure of proved undeveloped reserves of crude oil, including condensate and natural gas liquids, natural gas, synthetic oil and gas, or other nonrenewable natural resource that is intended to be upgraded into synthetic oil and gas.	View
us-gaap	Reclassification to Well, Facilities, and Equipment Based on Determination of Proved Reserves	Previously capitalized costs of the drilling of wells that were reclassified as part of the costs of the enterprise's wells and related equipment and facilities at the time that proved reserves were found.	View
us-gaap	Regulated Operating Revenue, Field Services	The amount of regulated field services operating revenues recognized during the period.	View
us-gaap	Reorganization Items	Total amount of reorganization items.	View
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.	View
us-gaap	Repayments of Other Long-term Debt	Amount of cash outflow for the payment of debt classified as other, maturing after one year or the operating cycle, if longer.	View
us-gaap	Restricted Cash, Current	Amount of cash 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.	View
us-gaap	Restricted Stock Award, Forfeitures	The total value of forfeitures related to restricted stock awards forfeited during the period.	View
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.	View
us-gaap	Retained Earnings (Accumulated Deficit)	The cumulative amount of the reporting entity's undistributed earnings or deficit.	View
us-gaap	Segment Reporting Information, Intersegment Revenue (Deprecated 2013-01-31)	Amount of revenue from transactions with other operating segments of the same entity.	View
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.	View
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.	View
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.	View
us-gaap	Segment Reporting Information, Revenue for Reportable Segment (Deprecated 2013-01-31)	Amount of total revenue for the reportable segments, including revenue from external customers, transactions with other operating segments of the same entity, and (gross) interest revenue. All considered to be "operating revenue" for purposes of the taxonomy.	View
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.	View
us-gaap	Senior Notes	Including the current and noncurrent portions, 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). Senior note holders are paid off in full before any payments are made to junior note holders.	View
us-gaap	Share-based Payment Arrangement, Noncash Expense	Amount of noncash expense for share-based payment arrangement.	View
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.	View
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.	View
us-gaap	Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Dividend Rate	The estimated dividend rate (a percentage of the share price) to be paid (expected dividends) to holders of the underlying shares over the option's term.	View
us-gaap	Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility Rate	The estimated measure of the 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.	View
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.	View
us-gaap	Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Number	The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan.	View
us-gaap	Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Exercise Price	The weighted-average price as of the balance sheet date at which grantees can acquire the shares reserved for issuance on vested portions of options outstanding and currently exercisable under the stock option plan.	View
us-gaap	Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Intrinsic Value	Amount of accumulated difference between fair value of underlying shares on dates of exercise and exercise price on options exercised (or share units converted) into shares.	View
us-gaap	Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures and Expirations in Period	For presentations that combine terminations, the number of shares under options that were cancelled during the reporting period as a result of occurrence of a terminating event specified in contractual agreements pertaining to the stock option plan or that expired.	View
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.	View
us-gaap	Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Intrinsic Value	Amount by which the current fair value of the underlying stock exceeds the exercise price of options outstanding.	View
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.	View
us-gaap	Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price	Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan.	View
us-gaap	Share-based Compensation Arrangement by Share-based Payment Award, Shares Issued in Period	Number of shares issued under share-based payment arrangement.	View
us-gaap	Share-based Compensation Arrangements by Share-based Payment Award, Options, Exercises in Period, Weighted Average Exercise Price	Weighted average price at which option holders acquired shares when converting their stock options into shares.	View
us-gaap	Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price	Weighted average per share amount at which grantees can acquire shares of common stock by exercise of options.	View
us-gaap	Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Intrinsic Value	Amount of difference between fair value of the underlying shares reserved for issuance and exercise price of vested portions of options outstanding and currently exercisable.	View
us-gaap	Share-based Payment Arrangement, Option, Exercise Price Range, Outstanding, Weighted Average Exercise Price	The weighted average price as of the balance sheet date at which grantees could acquire the underlying shares with respect to all outstanding stock options which are in the customized range of exercise prices.	View
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.	View
us-gaap	Standardized Measure of Discounted Future Net Cash Flow Relating to Proved Oil and Gas Reserves, Accretion of Discount	Amount of accretion of discount for the standardized measure of discounted future net cash flow related to proved oil and gas reserves.	View
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.	View
us-gaap	State and Local Income Tax Expense (Benefit), Continuing Operations	Amount of state and local current and deferred income tax expense (benefit) attributable to continuing operations.	View
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.	View
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.	View
us-gaap	Stockholders' Equity, Period Increase (Decrease)	The increase (decrease) in stockholders' equity during the period.	View
us-gaap	Stock Issued During Period, Shares, Employee Stock Purchase Plans	Number of shares issued during the period as a result of an employee stock purchase plan.	View
us-gaap	Stock Issued During Period, Shares, New Issues	Number of new stock issued during the period.	View
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.	View
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.	View
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.	View
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).	View
us-gaap	Stock Issued During Period, Value, Stock Options Exercised	Value of stock issued as a result of the exercise of stock options.	View
us-gaap	Unproved Oil and Gas Property, Successful Effort Method	Oil and Gas properties with unproved reserves under the successful effort method.	View
us-gaap	Unrealized Gain (Loss) on Commodity Contracts	The net change in the difference between the fair value and the carrying value, or in the comparative fair values, of open agreements to purchase or sell mineral resources, energy, and agricultural products at some future point held at each balance sheet date, that was included in earnings for the period.	View
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.	View
us-gaap	Unrealized Gain (Loss) on Derivatives and Commodity Contracts	The net change in the difference between the fair value and the carrying value, or in the comparative fair values, of open derivatives, commodity, or energy contracts, held at each balance sheet date, that was included in earnings for the period.	View
us-gaap	Unrecognized Tax Benefits, Income Tax Penalties and Interest Accrued	Amount accrued for interest on an underpayment of income taxes and penalties related to a tax position claimed or expected to be claimed in the tax return.	View
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.	View
us-gaap	Variable Interest Entity, Consolidated, Carrying Amount, Assets (Deprecated 2020-01-31)	The carrying amount of the consolidated Variable Interest Entity's assets included in the reporting entity's statement of financial position.	View
us-gaap	Variable Interest Entity, Consolidated, Carrying Amount, Liabilities (Deprecated 2020-01-31)	The carrying amount of the consolidated Variable Interest Entity's liabilities included in the reporting entity's statement of financial position.	View
us-gaap	Variable Interest Entity, Financial or Other Support, Amount	The amount of financial or other support the reporting entity has provided (explicitly or implicitly) to the Variable Interest Entity (VIE) that it was not previously contractually required to provide or that the reporting entity intends to provide, including, for example, situations in which the reporting entity assisted the VIE in obtaining another type of support.	View
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.	View
us-gaap	Weighted Average Number of Shares Outstanding, Basic	Number of [basic] shares or units, after adjustment for contingently issuable shares or units and other shares or units not deemed outstanding, determined by relating the portion of time within a reporting period that common shares or units have been outstanding to the total time in that period.	View
us-gaap	Amortization of Debt Issuance Costs and Discounts	Amount of amortization expense attributable to debt discount (premium) and debt issuance costs.	View
us-gaap	Share-based Payment Arrangement, Exercise of Option, Tax Benefit	Amount of tax benefit from exercise of option under share-based payment arrangement.	View
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.	View
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.	View
us-gaap	Advance Royalties	The amount paid to music publishers, record producers, songwriters, or other artists in advance of their earning royalties from record or music sales. Such an amount is based on contractual terms and is generally nonrefundable.	View
us-gaap	Accounts Receivable, Allowance for Credit Loss, Current	Amount of allowance for credit loss on accounts receivable, classified as current.	View
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.	View
us-gaap	Amortization of Debt Issuance Costs	Amount of amortization expense attributable to debt issuance costs.	View
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.	View
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.	View
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.	View
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.	View
us-gaap	Cash and Cash Equivalents, at Carrying Value, Including Discontinued Operations	For the entity and the disposal group, cash includes currency on hand as well as demand deposits with banks or financial institutions. It also includes other kinds of accounts that have the general characteristics of demand deposits in that the Entity may deposit additional funds at any time and also effectively may withdraw funds at any time without prior notice or penalty. Cash equivalents, excluding items classified as marketable securities, include short-term, highly liquid investments that are both readily convertible to known amounts of cash, and so near their maturity that they present minimal risk of changes in value because of changes in interest rates. Generally, only investments with original maturities of three months or less qualify under that definition. Original maturity means original maturity to the entity holding the investment. For example, both a three-month US Treasury bill and a three-year Treasury note purchased three months from maturity qualify as cash equivalents. However, a Treasury note purchased three years ago does not become a cash equivalent when its remaining maturity is three months. Compensating balance arrangements that do not legally restrict the withdrawal or usage of cash amounts may be reported as Cash and Cash Equivalents, while legally restricted deposits held as compensating balances against borrowing arrangements, contracts entered into with others, or company statements of intention with regard to particular deposits are not generally reported as cash and cash equivalents.	View
us-gaap	Conversion of Stock, Amount Issued	"The value of the financial instrument issued [noncash or part noncash] in the conversion of stock. 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."	View
us-gaap	Conversion of Stock, Shares Converted	"The number of shares 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."	View
us-gaap	Convertible Preferred Stock Converted to Other Securities	Value of convertible preferred stock that was converted to other securities.	View
us-gaap	Cost of Goods Sold, Oil and Gas (Deprecated 2018-01-31)	Total costs related to oil and gas produced and sold during the reporting period.	View
us-gaap	Cost of Services, Energy Services (Deprecated 2018-01-31)	Cost incurred in providing energy services during the reporting period.	View
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.	View
us-gaap	Debt Issuance Costs, Net	Amount, after accumulated amortization, of debt issuance costs. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs.	View
us-gaap	Deferred Income Tax Expense (Benefit)	Amount of deferred income tax expense (benefit) pertaining to income (loss) from continuing operations.	View
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.	View
us-gaap	Deferred Tax Assets, Gross, Noncurrent	Amount, before allocation of valuation allowance, of deferred tax asset attributable to deductible temporary differences and carryforwards, classified as noncurrent.	View
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.	View
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.	View
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.	View
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.	View
us-gaap	Employee Service Share-based Compensation, Tax Benefit Realized from Exercise of Stock Options (Deprecated 2017-01-31)	Disclosure of the aggregate tax benefit realized from the exercise of stock options and the conversion of similar instruments during the annual period.	View
us-gaap	Entity-Wide Revenue, Major Customer, Amount (Deprecated 2013-01-31)	Amount of revenue generated from a single external customer that accounts for 10 percent or more of an entity's revenues.	View
us-gaap	Entity-Wide Revenue, Major Customer, Percentage (Deprecated 2013-01-31)	Percentage of revenue generated from a single external customer that accounts for 10 percent or more of an entity's revenues.	View
us-gaap	Environmental Expense and Liabilities	The adjustment to exclude the noncash portion of, and include cash payments for environmental costs when calculating operating cash flows under the indirect method. The adjustment can include the increase (decrease) during an accounting period in total estimated obligations recorded for probable future loss attributable to environmental contamination issues.	View
us-gaap	Equity Method Investment, Summarized Financial Information, Noncurrent Assets (Deprecated 2020-01-31)	The amount of noncurrent assets reported by an equity method investment of the entity.	View
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.	View
us-gaap	Excess Tax Benefit from Share-based Compensation, Financing Activities	Amount of cash inflow from realized tax benefit related to deductible compensation cost reported on the entity's tax return for equity instruments in excess of the compensation cost for those instruments recognized for financial reporting purposes.	View
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."	View
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.	View
us-gaap	Income (Loss) from Continuing Operations, Per Diluted Share	The amount of net income (loss) derived from continuing operations during 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.	View
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.	View
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.	View
us-gaap	Effective Income Tax Rate Reconciliation, Change in Enacted Tax Rate, 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 income tax rates.	View
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.	View
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.	View
us-gaap	Effective Income Tax Rate Reconciliation, Other Reconciling Items, 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 tax exempt income, equity in earnings (loss) of an unconsolidated subsidiary, minority noncontrolling interest income (loss), tax holiday, disposition of a business, disposition of an asset, repatriation of foreign earnings, repatriation of foreign earnings jobs creation act of 2004, increase (decrease) in enacted tax rate, prior year income taxes, increase (decrease) in deferred tax asset valuation allowance, and other adjustments.	View
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).	View
us-gaap	Increase (Decrease) in Accounts and Other Receivables	The increase (decrease) during the reporting period in the amount due from customers for the credit sale of goods and services; includes accounts receivable and other types of receivables.	View
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.	View
us-gaap	Interest Rate Derivatives, at Fair Value, Net	Fair value as of the balance sheet date of interest rate derivative assets, net of interest rate derivative liabilities, which includes all such derivative instruments in hedging and nonhedging relationships that are recognized on the balance sheet.	View
us-gaap	Interest Rate Fair Value Hedge Asset at Fair Value	Fair value as of the balance sheet date of all derivative assets designated as interest rate fair value hedging instruments.	View
us-gaap	Interest Rate Fair Value Hedge Liability at Fair Value	Fair value as of the balance sheet date of all derivative liabilities designated as interest rate fair value hedging instruments.	View
us-gaap	Land Subject to Ground Leases	Area of land subject to a ground lease.	View
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.	View
us-gaap	Long-term Line of Credit	The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.	View
us-gaap	Long-term Debt and Lease Obligation, Including Current Maturities	Amount of long-term debt and lease obligation, including portion classified as current.	View
us-gaap	Long-term Debt and Capital Lease Obligations, Maturities, Repayments of Principal after Year Five	Principal amount of long-term debt and capital lease obligation maturing 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.	View
us-gaap	Malpractice Loss Contingency, Insurance Recoveries	Amount of insurance recoveries recognized from insurance and similar arrangements for reimbursement and payment of malpractice claims recognized during an accounting period.	View
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).	View
us-gaap	Noncontrolling Interest, Period Increase (Decrease)	Net Increase or Decrease in balance of noncontrolling interest in the subsidiary during the reporting period.	View
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.	View
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.	View
us-gaap	Other than Temporary Impairment Losses, Investments, Portion Recognized in Earnings, Net	The amount of other than temporary impairment (OTTI) losses on equity securities, OTTI related to credit losses on debt securities, and OTTI losses on debt securities when the entity intends to sell the securities or it is more likely than not that the entity will be required to sell the securities before recovery of its amortized cost basis. Additionally, this item includes OTTI losses recognized during the period on investments accounted for under the cost method of accounting.	View
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.	View
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.	View
us-gaap	Proceeds from Divestiture of Interest in Joint Venture	The cash inflow from the sale of an investment interest in a joint venture that the reporting entity has not previously accounted for using consolidation or the equity method of accounting.	View
us-gaap	Proceeds from Income Tax Refunds	The amount of cash received during the period as refunds for the overpayment of taxes.	View
us-gaap	Proceeds from Issuance of Common Stock	The cash inflow from the additional capital contribution to the entity.	View
us-gaap	Proved Developed and Undeveloped Reserve, Improved Recovery (Energy)	Energy measure of increase in quantity of proved reserve of oil and gas resulting from application of improved recovery techniques, stated in a unit of energy. For example, but not limited to, barrel of oil equivalents (BOE) or one thousand cubic feet of natural gas equivalent (Mcfe).	View
us-gaap	Restricted Cash and Investments, Noncurrent	The noncurrent cash, cash equivalents and investments that is restricted as to withdrawal or usage. Restrictions may include legally restricted deposits held as compensating balances against borrowing arrangements, contracts entered into with others, or entity statements of intention with regard to particular deposits classified as long-term; that is not expected to be released from such existing restrictions within one year of the balance sheet date or operating cycle, whichever is longer. Excludes compensating balance arrangements that are not agreements which legally restrict the use of cash amounts shown on the balance sheet. Includes noncurrent cash equivalents and investments that are similarly restricted as to withdrawal, usage or disposal.	View
us-gaap	Restricted Stock or Unit Expense	Amount of noncash expense for award of restricted stock or unit under share-based payment arrangement.	View
us-gaap	Results of Operations, Dry Hole Costs	Dry hole costs from oil and gas producing activities.	View
us-gaap	Results of Operations, Exploration Expense	Exploration costs from oil and gas producing activities.	View
us-gaap	Revenue from Contract with Customer, Excluding Assessed Tax	Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.	View
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.	View
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).	View
us-gaap	Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures and Expirations in Period, Weighted Average Exercise Price	Weighted average price of options that were either forfeited or expired.	View
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.	View
us-gaap	Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Exercisable, Aggregate Intrinsic Value	Amount by which current fair value of underlying stock exceeds exercise price of fully vested and expected to vest exercisable or convertible options. Includes, but is not limited to, unvested options for which requisite service period has not been rendered but that are expected to vest based on achievement of performance condition, if forfeitures are recognized when they occur.	View
us-gaap	Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Aggregate Intrinsic Value	Amount by which current fair value of underlying stock exceeds exercise price of fully vested and expected to vest options outstanding. Includes, but is not limited to, unvested options for which requisite service period has not been rendered but that are expected to vest based on achievement of performance condition, if forfeitures are recognized when they occur.	View
us-gaap	Stock Issued During Period, Shares, Treasury Stock Reissued	Number of treasury shares or units reissued. Excludes reissuance of shares or units in treasury for award under share-based payment arrangement.	View
us-gaap	Taxes Payable, Current	Carrying value as of the balance sheet date of obligations incurred and payable for statutory income, sales, use, payroll, excise, real, property and other taxes. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).	View

Chart of Accounts => Accounts

Name	View

Accounts Payable, Current	View
Accounts Receivable, after Allowance for Credit Loss, Current	View
Accretion Expense	View
Accretion of Discount (Deprecated 2016-01-31)	View
Accrued Liabilities, Current	View
Accumulated Amortization, Debt Issuance Costs	View
Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment	View
Additional Paid in Capital	View
Additional Paid in Capital, Common Stock	View
APIC, Share-based Payment Arrangement, Increase for Cost Recognition	View
Amortization of Intangible Assets	View
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount	View
Area of Land	View
Asset Impairment Charges	View
Asset Retirement Obligation	View
Asset Retirement Obligation, Accretion Expense	View
Asset Retirement Obligation, Current	View
Asset Retirement Obligation, Liabilities Incurred	View
Asset Retirement Obligation, Liabilities Settled	View
Asset Retirement Obligation, Revision of Estimate	View
Asset Retirement Obligations, Noncurrent	View
Assets	View
Assets, Current	View
Assets Held-for-sale, Current (Deprecated 2014-01-31)	View
Disposal Group, Including Discontinued Operation, Assets, Current	View
Bankruptcy Claims, Amount Paid to Settle Claims	View
Business Exit Costs	View
Capital Expenditure, Discontinued Operations	View
Capital Expenditures Incurred but Not yet Paid	View
Capitalized Costs, Unproved Properties	View
Capitalized Exploratory Well Cost, Additions Pending Determination of Proved Reserves	View
Capitalized Exploratory Well Cost, Charged to Expense (Deprecated 2016-01-31)	View
Capitalized Exploratory Well Cost, Charged to Expense	View
Capitalized Exploratory Well Costs	View
Capitalized Exploratory Well Costs that Have Been Capitalized for Period Greater than One Year	View
Capitalized Exploratory Well Costs that Have Been Capitalized for Period of One Year or Less	View
Capital Lease Obligations	View
Cash	View
Cash and Cash Equivalents, at Carrying Value	View
Cash and Cash Equivalents, at Carrying Value, Including Discontinued Operations	View
Nonoperating Income (Expense)	View
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect	View
Cash, Period Increase (Decrease)	View
Common Stock Dividends, Shares	View
Common Stock, Par or Stated Value Per Share	View
Common Stock, Shares Authorized	View
Common Stock, Shares, Issued	View
Common Stock, Shares, Outstanding	View
Common Stock, Value, Issued	View
Construction in Progress, Gross	View
Contribution of Property	View
Conversion of Stock, Amount Issued	View
Conversion of Stock, Shares Converted	View
Convertible Preferred Stock Converted to Other Securities	View
Costs Incurred, Development Costs	View
Costs Incurred, Exploration Costs	View
Costs Incurred, Oil and Gas Property Acquisition, Exploration, and Development Activities	View
Current Federal Tax Expense (Benefit)	View
Current State and Local Tax Expense (Benefit)	View
Debt and Lease Obligation	View
Debt Conversion, Converted Instrument, Shares Issued	View
Debt Instrument, Basis Spread on Variable Rate (Deprecated 2013-01-31)	View
Long-term Debt, Gross	View
Debt Instrument, Unamortized Discount	View
Debt Instrument, Unamortized Discount (Premium), Net	View
Debt Instrument, Unamortized Premium	View
Debt Issuance Cost (Deprecated 2016-01-31)	View
Debtor-in-Possession Financing, Borrowings Outstanding	View
Debtor Reorganization Items, Debtor-in-Possession Facility Financing Costs	View
Debtor Reorganization Items, Legal and Advisory Professional Fees	View
Debtor Reorganization Items, Other Expense (Income)	View
Debtor Reorganization Items, Write-off of Debt Issuance Costs and Debt Discounts	View
Deferred Tax Assets, Deferred Income	View
Deferred Tax Assets, Gross, Current	View
Deferred Tax Assets, Gross, Noncurrent	View
Deferred Tax Assets, Net	View
Deferred Tax Assets, Net, Current	View
Deferred Tax Assets, Net, Noncurrent	View
Deferred Tax Assets, Net of Valuation Allowance	View
Deferred Tax Assets, Net of Valuation Allowance, Current	View
Deferred Tax Assets, Net of Valuation Allowance, Noncurrent	View
Deferred Tax Assets, Operating Loss Carryforwards	View
Deferred Tax Assets, Operating Loss Carryforwards, Domestic	View
Deferred Tax Assets, Operating Loss Carryforwards, State and Local	View
Deferred Tax Assets, Other	View
Deferred Tax Assets, Other Tax Carryforwards	View
Deferred Tax Assets, Tax Credit Carryforwards, Alternative Minimum Tax	View
Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits	View
Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits, Share-based Compensation Cost	View
Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals, Asset Retirement Obligations	View
Deferred Tax Assets, Valuation Allowance	View
Deferred Tax Assets, Valuation Allowance, Current	View
Deferred Tax Assets, Valuation Allowance, Noncurrent	View
Deferred Tax Liabilities, Net	View
Deferred Tax Liabilities, Gross, Current	View
Deferred Tax Liabilities, Gross, Noncurrent	View
Deferred Tax Liabilities, Net, Noncurrent	View
Deferred Tax Liabilities, Other	View
Derivative Asset	View
Derivative Asset, Current	View
Derivative Assets (Liabilities), at Fair Value, Net	View
Derivative Asset, Noncurrent	View
Derivative Liability, Fair Value, Gross Liability	View
Derivative, Fair Value, Net	View
Derivative, Gain (Loss) on Derivative, Net	View
Derivative Instruments and Hedges, Assets	View
Derivative Instruments and Hedges, Liabilities	View
Derivative Instruments and Hedges, Liabilities, Noncurrent	View
Derivative Instruments and Hedges, Noncurrent	View
Derivative Instruments Not Designated as Hedging Instruments, Gain (Loss), Net	View
Derivative Liability	View
Derivative Liability, Current	View
Derivative Liability, Noncurrent	View
Discontinued Operation, Income (Loss) from Discontinued Operation, Net of Tax, Per Basic Share	View
Discontinued Operation, Income (Loss) from Discontinued Operation, Net of Tax, Per Diluted Share	View
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)	View
Discounted Future Net Cash Flows Relating to Proved Oil and Gas Reserves, Future Cash Inflows (Deprecated 2014-01-31)	View
Discounted Future Net Cash Flows Relating to Proved Oil and Gas Reserves, Future Development Costs (Deprecated 2013-01-31)	View
Discounted Future Net Cash Flows Relating to Proved Oil and Gas Reserves, Future Development Costs (Deprecated 2014-01-31)	View
Discounted Future Net Cash Flows Relating to Proved Oil and Gas Reserves, Future Income Tax Expense (Deprecated 2013-01-31)	View
Discounted Future Net Cash Flows Relating to Proved Oil and Gas Reserves, Future Income Tax Expense (Deprecated 2014-01-31)	View
Discounted Future Net Cash Flows Relating to Proved Oil and Gas Reserves, Future Net Cash Flows (Deprecated 2014-01-31)	View
Discounted Future Net Cash Flows Relating to Proved Oil and Gas Reserves, Future Production Costs (Deprecated 2013-01-31)	View
Discounted Future Net Cash Flows Relating to Proved Oil and Gas Reserves, Future Production Costs (Deprecated 2014-01-31)	View
Disposal Group, Including Discontinued Operation, Cash and Cash Equivalents	View
Dividends, Preferred Stock	View
Dividends, Preferred Stock, Stock	View
Earnings Per Share, Basic	View
Earnings Per Share, Diluted	View
Effective Income Tax Rate Reconciliation, Percent	View
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent	View
Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount	View
Share-based Payment Arrangement, Expense, Tax Benefit	View
Share-based Payment Arrangement, Exercise of Option, Tax Benefit	View
Escrow Deposits Related to Property Sales	View
Excess Tax Benefit from Share-based Compensation, Financing Activities	View
Exploration Expense	View
Extensions, Discoveries, Additions and Improved Recovery, Less Related Costs	View
Extinguishment of Debt, Gain (Loss), Per Share, Net of Tax	View
Fair Value Inputs, Discount Rate (Deprecated 2018-01-31)	View
Federal Income Tax Expense (Benefit), Continuing Operations	View
Future Net Cash Flows Relating to Proved Oil and Gas Reserves, Development Costs	View
Future Net Cash Flows Relating to Proved Oil and Gas Reserves, Income Tax Expense	View
Future Net Cash Flows Relating to Proved Oil and Gas Reserves, Net Cash Flows	View
Future Net Cash Flows Relating to Proved Oil and Gas Reserves, Production Costs	View
Gain (Loss) on Contract Termination	View
Gain (Loss) on Derivative Instruments, Net, Pretax	View
Gain (Loss) on Disposition of Property Plant Equipment, Excluding Oil and Gas Property and Timber Property	View
Gain (Loss) on Disposition of Assets	View
Gain (Loss) on Sale of Derivatives	View
Gain (Loss) on Disposition of Property Plant Equipment	View
Gain (Loss) on Extinguishment of Debt	View
Gains (Losses) on Recourse Debt	View
Gains (Losses) on Restructuring of Debt	View
Gain (Loss) on Disposition of Assets for Financial Service Operations	View
Gas Gathering, Transportation, Marketing and Processing Costs (Deprecated 2018-01-31)	View
General and Administrative Expense	View
Guarantor Obligations, Maximum Exposure, Undiscounted	View
Impairment of Long-Lived Assets to be Disposed of	View
Impairment of Oil and Gas Properties	View
Income (Loss) from Continuing Operations, Net of Tax, Attributable to Parent	View
Income (Loss) from Continuing Operations, Net of Tax, Attributable to Noncontrolling Interest	View
Income (Loss) from Continuing Operations before Income Taxes, Domestic	View
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest	View
Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Noncontrolling Interest	View
Income (Loss) from Continuing Operations, Net of Tax, Including Portion Attributable to Noncontrolling Interest	View
Income (Loss) from Continuing Operations, Per Basic Share	View
Income (Loss) from Continuing Operations, Per Diluted Share	View
Income (Loss) from Discontinued Operations, Net of Tax, Including Portion Attributable to Noncontrolling Interest	View
Income (Loss) from Discontinued Operations, Net of Tax, Attributable to Parent	View
Income (Loss) from Discontinued Operations and Disposal of Discontinued Operations, Net of Tax, Per Basic Share	View
Income (Loss) from Discontinued Operations and Disposal of Discontinued Operations, Net of Tax, Per Diluted Share	View
Income (Loss) from Equity Method Investments	View
Income Tax Expense (Benefit)	View
Income Taxes Paid	View
Income Taxes Paid, Net	View
Income Taxes Receivable, Current	View
Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance, Amount	View
Effective Income Tax Rate Reconciliation, Change in Enacted Tax Rate, Amount	View
Increase (Decrease) in Accounts Payable and Accrued Liabilities	View
Increase (Decrease) in Accrued Liabilities	View
Increase (Decrease) in Asset Retirement Obligations	View
Changes in Estimated Future Development Costs	View
Changes in Future Income Tax Expense Estimates on Future Cash Flows Related to Proved Oil and Gas Reserves	View
Increase (Decrease) in Income Taxes Receivable	View
Increase (Decrease) in Other Accrued Liabilities	View
Increase (Decrease) in Other Operating Assets	View
Increase (Decrease) in Other Operating Assets and Liabilities, Net	View
Increase (Decrease) in Restricted Cash	View
Incremental Common Shares Attributable to Dilutive Effect of Conversion of Preferred Stock	View
Incremental Common Shares Attributable to Dilutive Effect of Share-based Payment Arrangements	View
Interest Costs Capitalized	View
Interest Expense	View
Interest Expense, Debt	View
Interest Income (Expense), Nonoperating, Net	View
Interest Paid, Including Capitalized Interest, Operating and Investing Activities	View
Interest Paid, Excluding Capitalized Interest, Operating Activities	View
Letters of Credit Outstanding, Amount	View
Liabilities	View
Liabilities and Equity	View
Liabilities, Current	View
Liabilities of Assets Held-for-sale (Deprecated 2014-01-31)	View
Disposal Group, Including Discontinued Operation, Liabilities	View
Disposal Group, Including Discontinued Operation, Liabilities, Current	View
Liabilities Subject to Compromise	View
Liabilities Subject to Compromise, Accounts Payable and Accrued Liabilities	View
Liabilities Subject to Compromise, Debt and Accrued Interest	View
Liabilities Subject to Compromise, Environmental Contingencies	View
Long-term Line of Credit	View
Line of Credit Facility, Amount Outstanding (Deprecated 2014-01-31)	View
Line of Credit Facility, Current Borrowing Capacity	View
Long-term Debt and Lease Obligation	View
Long-term Debt and Lease Obligation, Including Current Maturities	View
Long-term Debt and Capital Lease Obligations, Maturities, Repayments of Principal after Year Five	View
Long-term Debt and Capital Lease Obligations, Maturities, Repayments of Principal in Year Five	View
Long-term Debt and Capital Lease Obligations, Maturities, Repayments of Principal in Year Four	View
Long-term Debt and Capital Lease Obligations, Maturities, Repayments of Principal in Year Three	View
Long-term Debt and Capital Lease Obligations, Maturities, Repayments of Principal in Year Two	View
Long-term Debt and Capital Lease Obligations, Maturities, Repayments of Principal Remainder of Fiscal Year	View
Long-term Debt and Capital Lease Obligations, Repayments of Principal in Next Twelve Months	View
Long-term Debt, Current Maturities	View
Long-Term Debt, Maturity, after Year Five	View
Long-Term Debt, Maturity, Year One	View
Long-Term Debt, Maturity, Year Five	View
Long-Term Debt, Maturity, Year Four	View
Long-Term Debt, Maturity, Year Three	View
Long-Term Debt, Maturity, Year Two	View
Long-Term Debt, Maturity, Remainder of Fiscal Year	View
Long-term Debt, Excluding Current Maturities	View
Loss Contingency, New Claims Filed, Number	View
Loss Contingency, Number of Plaintiffs	View
Loss on Contract Termination	View
Malpractice Loss Contingency, Insurance Recoveries	View
Stockholders' Equity Attributable to Noncontrolling Interest	View
Noncontrolling Interest, Period Increase (Decrease)	View
Natural Gas Midstream Revenue (Deprecated 2018-01-31)	View
Net Cash Provided by (Used in) Financing Activities	View
Net Cash Provided by (Used in) Investing Activities	View
Net Cash Provided by (Used in) Operating Activities	View
Net Income (Loss) Attributable to Parent	View
Net Income (Loss) Attributable to Noncontrolling Interest	View
Net Income (Loss) Available to Common Stockholders, Basic	View
Net Increase (Decrease) in Sales and Transfer Prices and Production Costs	View
Noncontrolling Interest, Decrease from Deconsolidation	View
Operating Costs and Expenses	View
Operating Expenses	View
Operating Income (Loss)	View
Operating Lease, Expense	View
Operating Leases, Future Minimum Payments Due	View
Operating Leases, Future Minimum Payments Due, Next Twelve Months	View
Operating Leases, Future Minimum Payments, Due in Five Years	View
Operating Leases, Future Minimum Payments, Due in Three Years	View
Operating Leases, Future Minimum Payments, Due in Two Years	View
Operating Leases, Future Minimum Payments, Due Thereafter	View
Operating Leases, Future Minimum Payments, Remainder of Fiscal Year	View
Operating Leases, Rent Expense, Net	View
Operating Loss Carryforwards	View
Other Accrued Liabilities, Noncurrent	View
Other Assets, Noncurrent	View
Other Commitment	View
Other Commitment, to be Paid, after Year Five	View
Other Commitment, to be Paid, Year Five	View
Other Commitment, to be Paid, Year Four	View
Other Commitment, to be Paid, Year One	View
Other Commitment, to be Paid, Year Two	View
Other Commitment, to be Paid, Year Three	View
Other Commitment, to be Paid, Remainder of Fiscal Year	View
Other Cost and Expense, Operating	View
Other Liabilities, Noncurrent	View
Other Long-term Debt, Noncurrent	View
Other Noncash Expense	View
Other Noncash Income (Expense)	View
Other Nonoperating Expense	View
Other Nonoperating Income	View
Other Nonoperating Income (Expense)	View
Other Operating Income (Expense), Net	View
Other Revenue, Net (Deprecated 2018-01-31)	View
Other than Temporary Impairment Losses, Investments, Portion Recognized in Earnings, Net	View
Partners' Capital Account, Contributions	View
Partners' Capital Account, Distributions	View
Payments for (Proceeds from) Derivative Instrument, Investing Activities	View
Payments for (Proceeds from) Other Investing Activities	View
Payments for (Proceeds from) Productive Assets	View
Payments of Debt Issuance Costs	View
Payments of Distributions to Affiliates	View
Payments of Dividends	View
Payments of Ordinary Dividends, Preferred Stock and Preference Stock	View
Payment, Tax Withholding, Share-based Payment Arrangement	View
Payments to Acquire Equity Method Investments	View
Payments to Acquire Interest in Joint Venture	View
Payments to Acquire Mineral Rights	View
Payments to Acquire Oil and Gas Property	View
Payments to Acquire Productive Assets	View
Payments to Explore and Develop Oil and Gas Properties	View
Payments to Noncontrolling Interests	View
Plan of Reorganization, Amount of Prepetition Obligations to be Settled in Cash	View
Preferred Stock, Amount of Preferred Dividends in Arrears	View
Preferred Stock Dividends and Other Adjustments	View
Preferred Stock Dividends, Income Statement Impact	View
Preferred Stock, Dividends Per Share, Declared	View
Preferred Stock, Par or Stated Value Per Share	View
Preferred Stock, Shares Authorized	View
Preferred Stock, Shares Issued	View
Preferred Stock, Shares Outstanding	View
Preferred Stock, Value, Issued	View
Prepaid Expense and Other Assets, Current	View
Proceeds from Issuance of Long-term Debt	View
Proceeds from Issuance of Preferred Stock and Preference Stock	View
Proceeds from Issuance of Senior Long-term Debt	View
Proceeds from Partnership Contribution	View
Proceeds from Removal Costs	View
Proceeds from Sale of Oil and Gas Property and Equipment	View
Proceeds from Sale of Productive Assets	View
Proceeds from Sales of Assets, Investing Activities	View
Proceeds from Stock Options Exercised	View
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest	View
Projects that have Exploratory Well Costs that have been Capitalized for Period Greater than One Year, Number of Projects	View
Property, Plant and Equipment, Gross	View
Property, Plant and Equipment, Net	View
Property, Plant and Equipment, Other, Gross	View
Proved Developed and Undeveloped Reserve, Extension and Discovery (Energy)	View
Proved Developed and Undeveloped Reserve, Improved Recovery (Energy)	View
Proved Developed and Undeveloped Reserve, Net (Energy)	View
Proved Developed and Undeveloped Reserve, Production (Energy)	View
Proved Developed and Undeveloped Reserve, Purchase of Mineral in Place (Energy)	View
Proved Developed and Undeveloped Reserve, Revision of Previous Estimate (Energy)	View
Proved Developed and Undeveloped Reserves, Net	View
Proved Developed and Undeveloped Reserves, Sale of Mineral in Place (Energy)	View
Proved Developed Reserves (Energy)	View
Proved Oil and Gas Property, Successful Effort Method	View
Proved Undeveloped Reserves (Energy)	View
Reclassification to Well, Facilities, and Equipment Based on Determination of Proved Reserves	View
Regulated Operating Revenue, Field Services	View
Reorganization Items	View
Repayments of Long-term Debt	View
Repayments of Other Long-term Debt	View
Restricted Cash and Investments, Noncurrent	View
Restricted Cash, Current	View
Restricted Stock Award, Forfeitures	View
Restricted Stock or Unit Expense	View
Results of Operations, Dry Hole Costs	View
Results of Operations, Exploration Expense	View
Results of Operations, Oil and Gas Producing Activities Net Income (Excluding Corporate Overhead and Interest Costs)	View
Retained Earnings (Accumulated Deficit)	View
Revenue from Contract with Customer, Excluding Assessed Tax	View
Revenue, Oil and Gas Services (Deprecated 2018-01-31)	View
Revenues	View
Segment Reporting Information, Intersegment Revenue (Deprecated 2013-01-31)	View
Revisions of Previous Quantity Estimates	View
Sales and Transfers of Oil and Gas Produced, Net of Production Costs	View
Revenue, Net (Deprecated 2018-01-31)	View
Segment Reporting Information, Revenue for Reportable Segment (Deprecated 2013-01-31)	View
Senior Notes, Noncurrent	View
Senior Notes	View
Share-based Payment Arrangement, Noncash Expense	View
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number	View
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value	View
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Dividend Rate	View
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility Rate	View
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate	View
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Intrinsic Value	View
Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures and Expirations in Period	View
Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures and Expirations in Period, Weighted Average Exercise Price	View
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Net of Forfeitures	View
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value	View
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Intrinsic Value	View
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number	View
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price	View
Share-based Compensation Arrangement by Share-based Payment Award, Shares Issued in Period	View
Share-based Compensation Arrangements by Share-based Payment Award, Options, Exercises in Period, Weighted Average Exercise Price	View
Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price	View
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Intrinsic Value	View
Share-based Payment Arrangement, Option, Exercise Price Range, Outstanding, Weighted Average Exercise Price	View
Standardized Measure of Discounted Future Net Cash Flow of Proved Oil and Gas Reserves, Other	View
Standardized Measure of Discounted Future Net Cash Flow Relating to Proved Oil and Gas Reserves, Accretion of Discount	View
Standardized Measure of Discounted Future Net Cash Flows Relating to Proved Oil and Gas Reserves	View
State and Local Income Tax Expense (Benefit), Continuing Operations	View
Stockholders' Equity Attributable to Parent	View
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest	View
Stockholders' Equity, Period Increase (Decrease)	View
Stock Issued During Period, Shares, Employee Stock Purchase Plans	View
Stock Issued During Period, Shares, New Issues	View
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period	View
Stock Issued During Period, Shares, Treasury Stock Reissued	View
Stock Issued During Period, Value, New Issues	View
Stock Issued During Period, Value, Restricted Stock Award, Net of Forfeitures	View
Shares Issued, Value, Share-based Payment Arrangement, after Forfeiture	View
Stock Issued During Period, Value, Stock Options Exercised	View
Taxes Payable, Current	View
Unproved Oil and Gas Property, Successful Effort Method	View
Unrealized Gain (Loss) on Commodity Contracts	View
Unrealized Gain (Loss) on Derivatives	View
Unrealized Gain (Loss) on Derivatives and Commodity Contracts	View
Unrecognized Tax Benefits, Income Tax Penalties and Interest Accrued	View
Valuation Allowance, Amount (Deprecated 2013-01-31)	View
Variable Interest Entity, Consolidated, Carrying Amount, Assets (Deprecated 2020-01-31)	View
Variable Interest Entity, Consolidated, Carrying Amount, Liabilities (Deprecated 2020-01-31)	View
Variable Interest Entity, Financial or Other Support, Amount	View
Weighted Average Number of Shares Outstanding, Diluted	View
Weighted Average Number of Shares Outstanding, Basic	View
Adjustments to Additional Paid in Capital, Stock Issued, Issuance Costs	View
Adjustments to Additional Paid in Capital, Stock Split	View
Advance Royalties	View
Accounts Receivable, Allowance for Credit Loss, Current	View
Amortization of Debt Discount (Premium)	View
Amortization of Debt Issuance Costs	View
Amortization of Debt Issuance Costs and Discounts	View
Cash and Cash Equivalents, Period Increase (Decrease)	View
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Including Disposal Group and Discontinued Operations	View
Cost of Goods Sold, Oil and Gas (Deprecated 2018-01-31)	View
Cost of Services, Energy Services (Deprecated 2018-01-31)	View
Costs Incurred, Asset Retirement Obligation Incurred	View
Deferred Costs and Other Assets	View
Deferred Federal Income Tax Expense (Benefit)	View
Debt Issuance Costs, Gross	View
Debt Issuance Costs, Net	View
Deferred Income Tax Expense (Benefit)	View
Deferred State and Local Income Tax Expense (Benefit)	View
Deferred Tax Liabilities, Net, Current	View
Defined Benefit Plan, Plan Assets, Contributions by Employer	View
Depreciation	View
Depreciation, Depletion and Amortization	View
Employee Service Share-based Compensation, Tax Benefit Realized from Exercise of Stock Options (Deprecated 2017-01-31)	View
Entity-Wide Revenue, Major Customer, Amount (Deprecated 2013-01-31)	View
Entity-Wide Revenue, Major Customer, Percentage (Deprecated 2013-01-31)	View
Environmental Expense and Liabilities	View
Equity Method Investment, Summarized Financial Information, Noncurrent Assets (Deprecated 2020-01-31)	View
Equity Method Investments	View
Future Net Cash Flows Relating to Proved Oil and Gas Reserves, Cash Inflows	View
Future Net Cash Flows Relating to Proved Oil and Gas Reserves, Ten Percent Annual Discount for Estimated Timing of Cash Flows	View
Effective Income Tax Rate Reconciliation at Federal Statutory Income Tax Rate, Amount	View
Effective Income Tax Rate Reconciliation, Nondeductible Expense, Amount	View
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Amount	View
Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Amount	View
Increase (Decrease) in Accounts and Other Receivables	View
Incremental Common Shares Attributable to Dilutive Effect of Nonvested Shares with Forfeitable Dividends	View
Interest Rate Derivatives, at Fair Value, Net	View
Interest Rate Fair Value Hedge Asset at Fair Value	View
Interest Rate Fair Value Hedge Liability at Fair Value	View
Investment Income, Interest	View
Land Subject to Ground Leases	View
Oil and Gas Property, Lease Operating Expense (Deprecated 2018-01-31)	View
Long-term Debt	View
Notional Amount of Interest Rate Derivatives (Deprecated 2013-01-31)	View
Number of Reportable Segments	View
Oil and Gas Reclamation Liability, Noncurrent	View
Oil and Gas Sales Revenue (Deprecated 2018-01-31)	View
Operating Leases, Future Minimum Payments, Due in Four Years	View
Previously Estimated Development Costs Incurred	View
Previously Estimated Development Costs Incurred During Period (Deprecated 2015-01-31)	View
Proceeds from Divestiture of Interest in Joint Venture	View
Proceeds from Fees Received	View
Proceeds from Income Tax Refunds	View
Proceeds from Issuance of Common Stock	View
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Number	View
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Exercise Price	View
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Exercisable, Aggregate Intrinsic Value	View
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Aggregate Intrinsic Value	View

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