Quarterly report pursuant to Section 13 or 15(d)

Subsequent Events (Details)

v3.7.0.1
Subsequent Events (Details) - USD ($)
 3 Months Ended 6 Months Ended 12 Months Ended
Aug. 01, 2017
Jul. 28, 2017
Apr. 18, 2017
Jun. 30, 2017
Jun. 30, 2016
Jun. 30, 2017
Jun. 30, 2016
Dec. 31, 2016
Subsequent Event [Line Items]                
Dividends declared per share (in dollars per share)       $ 0.750 $ 0.750 $ 1.500 $ 1.500  
Common Stock [Member] | Subsequent Event [Member]                
Subsequent Event [Line Items]                
Dividends declared per share (in dollars per share) $ 0.75              
Series A Cumulative Redeemable Preferred Stock [Member]                
Subsequent Event [Line Items]                
Coupon rate percentage           7.375%   7.375%
Series A Cumulative Redeemable Preferred Stock [Member] | Depositary Shares [Member] | Subsequent Event [Member]                
Subsequent Event [Line Items]                
Depositary stock, dividends declared per share (in dollars per share) $ 0.4609375              
Series A Cumulative Redeemable Preferred Stock [Member] | Preferred Stock [Member]                
Subsequent Event [Line Items]                
Coupon rate percentage           7.375%    
Amended And Restated CorEnergy Credit Facility [Member] | Line of Credit [Member] | Subsequent Event [Member]                
Subsequent Event [Line Items]                
Principal amount   $ 161,000,000.0            
Debt term   5 years            
Revolving Credit Facility [Member] | Line of Credit [Member]                
Subsequent Event [Line Items]                
Principal amount       $ 153,000,000   $ 153,000,000    
CorEnergy Revolver [Member] | Amended And Restated CorEnergy Credit Facility [Member] | Line of Credit [Member] | Subsequent Event [Member]                
Subsequent Event [Line Items]                
Principal amount   $ 160,000,000.0            
CorEnergy Revolver [Member] | Revolving Credit Facility [Member] | Line of Credit [Member]                
Subsequent Event [Line Items]                
Principal amount       105,000,000   105,000,000    
Extinguishment of debt     $ 44,000,000     44,000,000    
MoGas Revolver [Member] | Amended And Restated CorEnergy Credit Facility [Member] | Line of Credit [Member] | Subsequent Event [Member]                
Subsequent Event [Line Items]                
Principal amount   1,000,000.0            
MoGas Revolver [Member] | Revolving Credit Facility [Member] | Line of Credit [Member]                
Subsequent Event [Line Items]                
Principal amount       $ 3,000,000   $ 3,000,000    
CorEnergy Term Loan [Member] | Revolving Credit Facility [Member] | Line of Credit [Member] | Subsequent Event [Member]                
Subsequent Event [Line Items]                
Extinguishment of debt   $ 33,500,000            
Minimum [Member] | LIBOR [Member] | Amended And Restated CorEnergy Credit Facility [Member] | Line of Credit [Member] | Subsequent Event [Member]                
Subsequent Event [Line Items]                
Basis spread on variable rate   2.75%            
Maximum [Member] | LIBOR [Member] | Amended And Restated CorEnergy Credit Facility [Member] | Line of Credit [Member] | Subsequent Event [Member]                
Subsequent Event [Line Items]                
Basis spread on variable rate   3.75%