XML 65 R43.htm IDEA: XBRL DOCUMENT v3.7.0.1
Fair Value Accounting, Commodity Contracts (Details)
$ in Thousands, MWh in Millions
3 Months Ended
Mar. 31, 2017
USD ($)
MMBTU
MWh
Mar. 31, 2016
USD ($)
Dec. 31, 2016
USD ($)
MMBTU
MWh
Cleco Power [Member]      
FTRs [Abstract]      
Number of FTRs Held (MWh) | MWh 3.6   9.0
Price Risk Derivative [Member] | Derivatives Not Designated As Hedging Instrument [Member]      
FTRs, at Fair Value, Net [Abstract]      
Commodity-related contracts, net $ 4,418   $ 7,683
Price Risk Derivative [Member] | Derivatives Not Designated As Hedging Instrument [Member] | Energy risk management asset [Member]      
FTRs, at Fair Value, Net [Abstract]      
FTRs in energy risk management assets 4,957   7,884
Price Risk Derivative [Member] | Derivatives Not Designated As Hedging Instrument [Member] | Energy risk management liabilities [Member]      
FTRs, at Fair Value, Net [Abstract]      
FTRs in Energy risk management liabilities 539   201
Price Risk Derivative [Member] | Cleco Power [Member] | Derivatives Not Designated As Hedging Instrument [Member]      
FTRs, at Fair Value, Net [Abstract]      
Commodity-related contracts, net 4,418   7,683
FTRs [Abstract]      
Net gain (loss) on FTRs recognized in income 4,498 $ 2,797  
Price Risk Derivative [Member] | Cleco Power [Member] | Derivatives Not Designated As Hedging Instrument [Member] | Accumulated deferred fuel [Member]      
FTRs [Abstract]      
Derivative, Unrealized Gain (Loss) on Derivative, Net 2,100 (800)  
Price Risk Derivative [Member] | Cleco Power [Member] | Derivatives Not Designated As Hedging Instrument [Member] | Energy risk management asset [Member]      
FTRs, at Fair Value, Net [Abstract]      
FTRs in energy risk management assets 4,957   7,884
Price Risk Derivative [Member] | Cleco Power [Member] | Derivatives Not Designated As Hedging Instrument [Member] | Energy risk management liabilities [Member]      
FTRs, at Fair Value, Net [Abstract]      
FTRs in Energy risk management liabilities 539   $ 201
Price Risk Derivative [Member] | Cleco Power [Member] | Derivatives Not Designated As Hedging Instrument [Member] | Power purchased for utility customers [Member]      
FTRs [Abstract]      
Loss on FTRs recognized in income (4,665) (5,723)  
Price Risk Derivative [Member] | Cleco Power [Member] | Derivatives Not Designated As Hedging Instrument [Member] | Electric operations [Member]      
FTRs [Abstract]      
Gain on FTRs recognized in income $ 9,163 8,520  
Energy Related Derivative [Member] | Cleco Power [Member]      
FTRs [Abstract]      
Number of open natural gas positions | MMBTU 0   0
Predecessor [Member] | Price Risk Derivative [Member] | Derivatives Not Designated As Hedging Instrument [Member]      
FTRs [Abstract]      
Net gain (loss) on FTRs recognized in income   2,797  
Predecessor [Member] | Price Risk Derivative [Member] | Derivatives Not Designated As Hedging Instrument [Member] | Power purchased for utility customers [Member]      
FTRs [Abstract]      
Loss on FTRs recognized in income   (5,723)  
Predecessor [Member] | Price Risk Derivative [Member] | Derivatives Not Designated As Hedging Instrument [Member] | Electric operations [Member]      
FTRs [Abstract]      
Gain on FTRs recognized in income   8,520  
Successor [Member] | Price Risk Derivative [Member] | Derivatives Not Designated As Hedging Instrument [Member]      
FTRs [Abstract]      
Net gain (loss) on FTRs recognized in income $ 4,498    
Successor [Member] | Price Risk Derivative [Member] | Derivatives Not Designated As Hedging Instrument [Member] | Accumulated deferred fuel [Member]      
FTRs [Abstract]      
Derivative, Unrealized Gain (Loss) on Derivative, Net 2,100 $ 800  
Successor [Member] | Price Risk Derivative [Member] | Derivatives Not Designated As Hedging Instrument [Member] | Power purchased for utility customers [Member]      
FTRs [Abstract]      
Loss on FTRs recognized in income (4,665)    
Successor [Member] | Price Risk Derivative [Member] | Derivatives Not Designated As Hedging Instrument [Member] | Electric operations [Member]      
FTRs [Abstract]      
Gain on FTRs recognized in income $ 9,163