Annual report pursuant to Section 13 and 15(d)

Debt - CorEnergy Credit Facilities (Details)

v3.10.0.1
Debt - CorEnergy Credit Facilities (Details) - USD ($)
 12 Months Ended
Jul. 28, 2017
Jul. 08, 2015
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Jul. 07, 2015
Nov. 24, 2014
Line of Credit Facility [Line Items]              
Borrowed against the revolver     $ 0 $ 10,000,000 $ 44,000,000    
Long-term debt outstanding     150,038,380 152,777,437      
Parent Company              
Line of Credit Facility [Line Items]              
Borrowed against the revolver     0 $ 10,000,000 $ 44,000,000    
Line of Credit              
Line of Credit Facility [Line Items]              
Face amount   $ 153,000,000          
Line of Credit | Revolving Credit Facility              
Line of Credit Facility [Line Items]              
Face amount   105,000,000       $ 93,000,000  
Monthly principal periodic payment   900,000 1,600,000        
Line of Credit | Amended and Restated CorEnergy Credit Facility              
Line of Credit Facility [Line Items]              
Face amount $ 161,000,000            
Borrowed against the revolver $ 10,000,000            
Debt instrument term 5 years            
Remaining borrowing capacity     122,700,000        
Line of Credit | Subsidiaries | Revolving Credit Facility              
Line of Credit Facility [Line Items]              
Face amount   3,000,000          
Line of Credit | Parent Company | Term Loan              
Line of Credit Facility [Line Items]              
Face amount   $ 45,000,000          
Line of Credit | Minimum | LIBOR | Amended and Restated CorEnergy Credit Facility              
Line of Credit Facility [Line Items]              
Basis spread on variable rate 2.75%            
Line of Credit | Maximum | LIBOR | Amended and Restated CorEnergy Credit Facility              
Line of Credit Facility [Line Items]              
Basis spread on variable rate 3.75%            
CorEnergy Revolver | Line of Credit | Revolving Credit Facility              
Line of Credit Facility [Line Items]              
Face amount     160,000,000        
Extinguishment of debt     44,000,000        
CorEnergy Revolver | Line of Credit | Amended and Restated CorEnergy Credit Facility              
Line of Credit Facility [Line Items]              
Face amount $ 160,000,000            
MoGas Revolver | Line of Credit | Revolving Credit Facility              
Line of Credit Facility [Line Items]              
Face amount     1,000,000       $ 3,000,000.0
MoGas Revolver | Line of Credit | Amended and Restated CorEnergy Credit Facility              
Line of Credit Facility [Line Items]              
Face amount 1,000,000            
Remaining borrowing capacity 1,000,000            
Long-term debt outstanding     $ 0        
CorEnergy Term Loan | Line of Credit | Revolving Credit Facility              
Line of Credit Facility [Line Items]              
Extinguishment of debt $ 33,500,000