Quarterly report pursuant to Section 13 or 15(d)

Fair Value of Other Securities (Details 3)

v2.4.1.9
Fair Value of Other Securities (Details 3) (USD $)
Mar. 31, 2015
Dec. 31, 2014
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]    
Assets $ 461,878,833us-gaap_Assets $ 443,815,842us-gaap_Assets
Total Liabilities 72,613,005us-gaap_Liabilities 106,274,800us-gaap_Liabilities
Reported Value Measurement [Member]    
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]    
Assets 404,524us-gaap_Assets
/ us-gaap_FairValueByMeasurementBasisAxis
= us-gaap_CarryingReportedAmountFairValueDisclosureMember
408,740us-gaap_Assets
/ us-gaap_FairValueByMeasurementBasisAxis
= us-gaap_CarryingReportedAmountFairValueDisclosureMember
Total Liabilities 128,107us-gaap_Liabilities
/ us-gaap_FairValueByMeasurementBasisAxis
= us-gaap_CarryingReportedAmountFairValueDisclosureMember
128,128us-gaap_Liabilities
/ us-gaap_FairValueByMeasurementBasisAxis
= us-gaap_CarryingReportedAmountFairValueDisclosureMember
Unconsolidated Affiliates [Member] | Reported Value Measurement [Member]    
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]    
Assets, Current 21,854us-gaap_AssetsCurrent
/ us-gaap_FairValueByMeasurementBasisAxis
= us-gaap_CarryingReportedAmountFairValueDisclosureMember
/ us-gaap_InvestmentsInAndAdvancesToAffiliatesCategorizationAxis
= corr_UnconsolidatedAffiliatesMember
25,783us-gaap_AssetsCurrent
/ us-gaap_FairValueByMeasurementBasisAxis
= us-gaap_CarryingReportedAmountFairValueDisclosureMember
/ us-gaap_InvestmentsInAndAdvancesToAffiliatesCategorizationAxis
= corr_UnconsolidatedAffiliatesMember
Assets, Noncurrent 382,670us-gaap_AssetsNoncurrent
/ us-gaap_FairValueByMeasurementBasisAxis
= us-gaap_CarryingReportedAmountFairValueDisclosureMember
/ us-gaap_InvestmentsInAndAdvancesToAffiliatesCategorizationAxis
= corr_UnconsolidatedAffiliatesMember
382,957us-gaap_AssetsNoncurrent
/ us-gaap_FairValueByMeasurementBasisAxis
= us-gaap_CarryingReportedAmountFairValueDisclosureMember
/ us-gaap_InvestmentsInAndAdvancesToAffiliatesCategorizationAxis
= corr_UnconsolidatedAffiliatesMember
Liabilities, Current 14,099us-gaap_LiabilitiesCurrent
/ us-gaap_FairValueByMeasurementBasisAxis
= us-gaap_CarryingReportedAmountFairValueDisclosureMember
/ us-gaap_InvestmentsInAndAdvancesToAffiliatesCategorizationAxis
= corr_UnconsolidatedAffiliatesMember
14,318us-gaap_LiabilitiesCurrent
/ us-gaap_FairValueByMeasurementBasisAxis
= us-gaap_CarryingReportedAmountFairValueDisclosureMember
/ us-gaap_InvestmentsInAndAdvancesToAffiliatesCategorizationAxis
= corr_UnconsolidatedAffiliatesMember
Liabilities, Noncurrent 114,008us-gaap_LiabilitiesNoncurrent
/ us-gaap_FairValueByMeasurementBasisAxis
= us-gaap_CarryingReportedAmountFairValueDisclosureMember
/ us-gaap_InvestmentsInAndAdvancesToAffiliatesCategorizationAxis
= corr_UnconsolidatedAffiliatesMember
113,810us-gaap_LiabilitiesNoncurrent
/ us-gaap_FairValueByMeasurementBasisAxis
= us-gaap_CarryingReportedAmountFairValueDisclosureMember
/ us-gaap_InvestmentsInAndAdvancesToAffiliatesCategorizationAxis
= corr_UnconsolidatedAffiliatesMember
Members' Equity 276,417us-gaap_MembersEquity
/ us-gaap_FairValueByMeasurementBasisAxis
= us-gaap_CarryingReportedAmountFairValueDisclosureMember
/ us-gaap_InvestmentsInAndAdvancesToAffiliatesCategorizationAxis
= corr_UnconsolidatedAffiliatesMember
280,612us-gaap_MembersEquity
/ us-gaap_FairValueByMeasurementBasisAxis
= us-gaap_CarryingReportedAmountFairValueDisclosureMember
/ us-gaap_InvestmentsInAndAdvancesToAffiliatesCategorizationAxis
= corr_UnconsolidatedAffiliatesMember
Total liabilities and partner's equity $ 404,524corr_Totalliabilitiesandpartnersequity
/ us-gaap_FairValueByMeasurementBasisAxis
= us-gaap_CarryingReportedAmountFairValueDisclosureMember
/ us-gaap_InvestmentsInAndAdvancesToAffiliatesCategorizationAxis
= corr_UnconsolidatedAffiliatesMember
$ 408,740corr_Totalliabilitiesandpartnersequity
/ us-gaap_FairValueByMeasurementBasisAxis
= us-gaap_CarryingReportedAmountFairValueDisclosureMember
/ us-gaap_InvestmentsInAndAdvancesToAffiliatesCategorizationAxis
= corr_UnconsolidatedAffiliatesMember