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Income Taxes (Textuals) (Details) (USD $)
In Millions, unless otherwise specified
12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Mar. 07, 2014
Income Tax Contingency [Line Items]      
Deferred Tax Assets, Net $ 23.1us-gaap_DeferredTaxAssetsNet $ 3.2us-gaap_DeferredTaxAssetsNet  
Federal      
Income Tax Contingency [Line Items]      
Operating Loss Carryforwards 48.2us-gaap_OperatingLossCarryforwards
/ us-gaap_IncomeTaxAuthorityAxis
= us-gaap_DomesticCountryMember
  146.3us-gaap_OperatingLossCarryforwards
/ us-gaap_IncomeTaxAuthorityAxis
= us-gaap_DomesticCountryMember
Operating Loss Carryforward, Utilized in Period 98.1enlc_OperatingLossCarryforwardUtilizedinPeriod
/ us-gaap_IncomeTaxAuthorityAxis
= us-gaap_DomesticCountryMember
   
State and Local      
Income Tax Contingency [Line Items]      
Operating Loss Carryforwards 97.4us-gaap_OperatingLossCarryforwards
/ us-gaap_IncomeTaxAuthorityAxis
= us-gaap_StateAndLocalJurisdictionMember
  85.5us-gaap_OperatingLossCarryforwards
/ us-gaap_IncomeTaxAuthorityAxis
= us-gaap_StateAndLocalJurisdictionMember
Operating Loss Carryforward, Utilized in Period 11.9enlc_OperatingLossCarryforwardUtilizedinPeriod
/ us-gaap_IncomeTaxAuthorityAxis
= us-gaap_StateAndLocalJurisdictionMember
   
Deferred Tax Assets, Net $ 4.2us-gaap_DeferredTaxAssetsNet
/ us-gaap_IncomeTaxAuthorityAxis
= us-gaap_StateAndLocalJurisdictionMember