Quarterly report pursuant to Section 13 or 15(d)

Leases (Details)

v2.4.1.9
Leases (Details)
 3 Months Ended
Mar. 31, 2015
Mar. 31, 2014
Dec. 31, 2014
Pinedale Liquids Gathering System [Member]      
Operating Leased Assets [Line Items]      
Percentage of total leased properties 78.68%corr_PercentageOfTotalLeasedProperties
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= corr_PinedaleLiquidsGatheringSystemMember 		  79.17%corr_PercentageOfTotalLeasedProperties
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= corr_PinedaleLiquidsGatheringSystemMember
Percentage of leased property revenue 70.36%corr_PercentageOfLeasedPropertyRevenue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= corr_PinedaleLiquidsGatheringSystemMember 		75.07%corr_PercentageOfLeasedPropertyRevenue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= corr_PinedaleLiquidsGatheringSystemMember 		 
Portland Terminal Facility [Member]      
Operating Leased Assets [Line Items]      
Percentage of total leased properties 17.93%corr_PercentageOfTotalLeasedProperties
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= corr_PortlandTerminalFacilityMember 		  17.24%corr_PercentageOfTotalLeasedProperties
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= corr_PortlandTerminalFacilityMember
Percentage of leased property revenue 20.68%corr_PercentageOfLeasedPropertyRevenue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= corr_PortlandTerminalFacilityMember 		15.49%corr_PercentageOfLeasedPropertyRevenue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= corr_PortlandTerminalFacilityMember 		 
Public Service Copmany of New Mexico [Member]      
Operating Leased Assets [Line Items]      
Percentage of total leased properties 2.87%corr_PercentageOfTotalLeasedProperties
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= corr_PublicServiceCopmanyOfNewMexicoMember 		  3.07%corr_PercentageOfTotalLeasedProperties
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= corr_PublicServiceCopmanyOfNewMexicoMember
Percentage of leased property revenue 8.70%corr_PercentageOfLeasedPropertyRevenue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= corr_PublicServiceCopmanyOfNewMexicoMember 		9.44%corr_PercentageOfLeasedPropertyRevenue
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= corr_PublicServiceCopmanyOfNewMexicoMember