XML 120 R98.htm IDEA: XBRL DOCUMENT v3.6.0.2
Litigation, Other Commitments and Contingencies, and Disclosures about Guarantees, Off-Balance Sheet Commitments (Details) - USD ($)
$ in Millions
Dec. 31, 2016
Dec. 31, 2015
Performance Guarantee [Member]    
Guarantor Obligations [Line Items]    
Guarantor Obligations, Maximum Exposure, Undiscounted $ 42.4  
Cleco Power [Member] | Guarantee Issued to Entergy Mississippi on behalf of Attala [Member]    
Guarantor Obligations [Line Items]    
Guarantor Obligations, Maximum Exposure, Undiscounted 106.5  
Guarantor Obligations, Current Carrying Value 0.0 $ 3.8
Evangeline [Member] | Indemnification Agreement [Member]    
Guarantor Obligations [Line Items]    
Guarantor Obligations, Maximum Exposure, Undiscounted 40.0  
Evangeline [Member] | Indemnification Agreement INCLUDING fundamental organizational structure [Member]    
Guarantor Obligations [Line Items]    
Guarantor Obligations, Maximum Exposure, Undiscounted 400.0  
Evangeline [Member] | Cleco Power [Member] | Indemnification Agreement [Member]    
Guarantor Obligations [Line Items]    
Guarantor Obligations, Maximum Exposure, Undiscounted 40.0  
Evangeline [Member] | Cleco Power [Member] | Indemnification Agreement INCLUDING fundamental organizational structure [Member]    
Guarantor Obligations [Line Items]    
Guarantor Obligations, Maximum Exposure, Undiscounted $ 400.0