Natural gas and natural gas liquids, prepaid expenses and other Carrying amount as of the balance sheet date of natural gas in storage, which is a mixture of gases (liquefied or otherwise), used for fuel and manufacturing purposes, which is ready for sale and sum of the amounts paid in advance for capitalized costs that will be expensed with the passage of time or the occurrence of a triggering event, and will be charged against earnings within one year or the normal operating cycle, if longer. Deposit Prepaid Expenses And Inventory Natural gas and natural gas liquids, prepaid expenses and other The net change during the reporting period in the amount of outstanding money paid in advance for natural gas and liquids, derivatives, and other goods or services that bring economic benefits for future periods Increase Decrease In Natural Gas And Natural Gas Liquids Prepaid Expenses And Other Non-controlling partner's impact of conversion of restricted units and options exercise Non Controlling Partners Impact Of Conversion Of Restricted Units Impact of conversion on Non Controlling Partners Tax due to change in non-controlling interest Taxes due to change in non-controlling interest's protion of accumulated other comprehensive income due to issuance of Partnership unit Earning per Share and Dilution Computations Earning per Share and Dilution Computations 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. Payment of interest paid-in-kind debt Non Cash And Cash Debt Interest Paid In Kind Interest paid in cash as well as other than in cash for example by issuing additional debt securities. It is added or subtracted from net income when calculating cash provided by (used in) operations using the indirect method. Change in Non-controlling interest's portion of accumulated other comprehensive income due to the issuance of units by Partnership, net of taxes of $ Change In Non Controllinginterests Portion Of Oci Due To Issuance Of Units Net Of Taxes Increase(decrease) in non-controlling interest's portion of accumulated other comprehensive income due to the issuance of units by the Partnerhsip, net of taxes Conversion of restricted units, net of units withheld for taxes Conversion Of Restricted Units For Common Units Taxes Paid The cash outflow to pay taxes for the conversion of restricted units for common units. Non-cash portion of loss on debt extinguishment Non Cash Portion Of Loss On Debt Extinguishment Related To WriteOff Of Unamortized Debt Issue Costs Non Cash Portion Of Loss On Debt Extinguishment Related To Write Off Of Unamortized Debt Issue Costs ScheduleOfDebtLeverageTableTextBlock Schedule Of Debt Leverage Table [Text Block] Leverage Ratio Table Scheduleof Share Based Compensation Restricted Stock and Restricted Stock Units Vestedand Fair Value Vested Table [Text Block] Scheduleof Share Based Compensation Unit Options Vested and Fair Value Vested Table [Text Block] Unit Options Vested Schedule Of Notional Amount And Fair Value Of Derivative Instruments [Table Text Block] Notional Amount and Fair Value of Derivative Instruments Derivatives Other than Cash Flow Hedges Schedule Of Maturity For Other Derivatives Not Designated As Hedging Instruments [Table Text Block] Investment In L L C [Abstract] Unrelated other partie's ownership capital contribution to the investment in the limited liability company Unrelated Party Investment Capital Contribution Unrelated Party Ownership Percentage Unrelated other parties ownership percentage investment in the limited liability company Management And Other Investors Interest Limited liability company managements percentage ownership This reperesents additional capital investment by the investor company in the investee Additional Capital Investment Investee limited liability company, beneficiary of Partnership and other partners investments Howard Energy Partners [Member] The potential charge against earnings resulting from the aggregate potential write down of sabine plant asset from its carrying value to its fair value. Potential Impairment Of Long Lived Assets Amount, net of accumulated depreciation, depletion and amortization, of long-lived 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, furniture and fixtures, and computer equipment. Property Plant And Equipment Net 1 Amount, net of accumulated depreciation, depletion and amortization, of long-lived 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, furniture and fixtures, and computer equipment. The represents the long live asset impaired Sabine Plant [Member] Business Acquisition [Abstract] Informationon long term debt due date Long Term Debt Due [Axis] Type of Long term debt due date Long Term Debt Due [Domain] Debt due in 2016 2016 Twenty Sixteen [Member] TwentyEighteenMember Member Twenty Eighteen [Member] 2018 Long Term Debt Interest Rate [Axis] Intrest rate due dates Long Term Debt Interest Rate [Domain] 2.9% Two Point Nine Percent [Member] Three Point Three Three Percent [Member] 3.33% 8.875% Eight Point Eight Seven Five Percent [Member] Letter Of Credit Facility Amount Borrowed Amount of letters of credit issued under the credit facility as of the balance sheet date. Outstanding letter of credit Credit Facility [Domain] Type of credit facility. Credit facilities provide capital to borrowers without the need to structure a loan for each borrowing. Leverage Ratio Range [Domain] Type of credit facility. Credit facilities provide capital to borrowers without the need to structure a loan for each borrowing. Leverage Ratios Leverage ratio is defined in the Amended Credit Agreement, being generally computed as the ratio of total funded debt to consolidated earnings before interest, taxes, depreciation, amortization and certain other non-cash charges Debt Instrument Call Date Mid Date between the earliest and latest date before maturity which the issuer can call the outstanding debt instrument for repayment or conversion to equity, in CCYY-MM-DD format. Selling Priceof Debt Instrument Selling price, in percentage, of debt instrument Redemption Price For Early Redepemption Redemption price perentage if notes are redeemed prior to June 1, 2015 Redemption Amount Percentage of notes that may be redeemed prior to June 1, 2015 Redemption Price 1 Redemption price perentage if notes are redeemed for the twelve-month period beginning on June 1, 2017 Redemption Price 2 Redemption price perentage if notes are redeemed for the twelve-month period beginning on June 1, 2018 Redemption Price 3 Redemption price perentage if notes are redeemed for the twelve-month period beginning on June 1, 2019 Redemption Price 4 Redemption price perentage if notes are redeemed for the period beginning on June 1, 2020 Senior Unsecured Debt [Member] Debt obligation that take priority over other debt not collateralized by pledge of, mortgage of or other lien on the entity's assets. 7.125% Senior Subordinated Notes Due 2022 [Member] Capital leases future minimum payments net minimum payments current The total current contractually required rental payments on capitalized lease Less: Current portion of net minimum lease payments Capital leases future minimum payments net minimum payments long term The total contractually required rental payments on capitalized leases net of current portion of lease payments Long-term portion of net minimum lease payments Capital Leases Minimum Payments Due [Abstract] Percentage Of Cash Avaliable For Distribution Per partnership agreement the percentage of cash to be distributed Number Of Days From End Of Quarter For Distribution Per Partnership agreement, the number of days following the end of quarter to make distribution of avaliable cash Number of days from end of quarter for distribution Percentage of distribution allocated to partner General Partner's ownership percentage in Limited Partnership General partners interest Common And Preferred [Member] Common stocks partners and partners with preferential rights in limited partner distribution Total [Member] Share Based Compensation Charged To General And Administrative Expense Represents the expense recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees allocated to general and administrative expense. Cost of share-based compensation charged to general and administrative expense Share based compensation charged to operating expense Cost of share-based compensation charged to operating expense Represents the expense recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees allocated to operating expense. Non Controlling Partners Interest In Share Based Compensation The aggregate amount of noncash, equity-based employee remuneration Restricted units [Abstract] Share based compensation arrangement by share based payment award equity instruments other than options vested in period withheld for payroll taxes The number of equity-based payment instruments , excluding stock (or unit) options, that were withheld for payroll taxes for vested units during the period Unit Option [Member] Incremental common units attributable to unit options that were not included in diluted earnings per share (EPS) because to do so would increase EPS amounts or decrease loss per share amounts for the period presented. A contract that gives the holder the right, but not the obligation, either to purchase or to sell a certain number of shares of units at a predetermined price for a specified period of time. Unit Options Weighted Average Share Price [Abstract] Weighted Average Contractual Term End Of Period [Abstract] Aggregate Instrinsic Value End Of Period [Abstract] Award Type [Axis] nformation by award type pertaining to equity-based compensation. Gain loss on commodity derivative instruments net pretax Net losses related to commodity swaps Aggregate net gain (loss) on commodity derivative instruments recognized in earnings during the period, before tax effects. Put option premium mark to market Put option premium mark to market The increase (decrease) during the period, which was recognized in earnings, in the unrealized gains or losses on put option premium. Derivative Realized Gain Loss Cash Flow Hedge [Line Item] Fair Value Maturity Less Than One Year The fair value of all commodity derivatives, other than cash flow hedges, that will mature within the next twelve months Less than one year Fair Value Maturity Between One And Two Years The fair value of all commodity derivatives, other than cash flow hedges, that will mature in one to two years. One to two years Fairvaluematurityaftertwoyears The fair value of all commodity derivatives, other than cash flow hedges, that will mature after two years. More than two years Maximum Potential Exposure To Credit Losses Gross Exposure The maximum potential exposure to credit losses on derivative contracts. Maximum counterparty loss Maximum Potential Exposure To Credit Losses Net Exposure The net potential exposure to credit losses on derivative contracts Maximum counterparty loss with netting feature Cash Flow Liquid Swap [Member] Cash flow liquid swap Cash Flow Gas Swap [Member] Fair Value Derivatives Commodity Swaps 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 Commodity Swap [Member] Segment Profit Loss Amount of profit or loss recognized by the reportable segment. Segment profit Depreciation Depletion Amortization And Impairment Depreciation, amortization, and impairments The aggregate expense recognized in the current period that allocates the cost of tangible assets, intangible assets,depleting assets, and impairments to periods that benefit from use of the assets. LIG Operating Segments [Member] LIG Operating Segment NTX Operating Segments [Member] PNGL Operating Segments [Member] Segment Profit Loss Total Segment Profits Amount of profit or loss recognized by the reportable segment. Price risk managment fair value instruments [Abstract] Fair value is the amount at which a financial instrument could be exchanged in a current transaction between willing parties, other than in a forced sale or Derivative Nonmonetary Notional Amount Aggregate notional amount of derivative expressed in nonmonetary units. For example, the number of barrels specified in a fuel oil forward purchase contract. Swing swap [Member] Entered into to protect against changes in the volume of daily versus first-of-month index priced gas supplies or markets Physical offset to swing swap [Member] Physical offset to swing swap contracts entered into. Physical Offset To Basis Swap [Member] Physical offset to basis swap contracts entered into. Processing Margin Hedges [Member] Processing margin financial swaps are used to hedge fractionation spread risk at processing plants related to the option of process versus bypassing the equity gas. Storage Swap [Member] A financial contract used to protect against changes in the value of products held and stored by a party to serve various operational gas requirements. Put Options [Member] A financial contract between two parties, the buyer and the seller (writer) of the option, where the buyer has the right but not the obligation to sell a commodity or financial instrument (the underlying instrument) to the seller (writer) at a certain time for a certain price (the strike price). The seller (writer) has the obligation to purchase the underlying asset at that strike price, if the buyer exercises the option. Short Contracts [Member] Seller of a contract