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Leases - Operating Lease (Details) - Dec. 31, 2025 - CLECO POWER
Total
municipality
nonmunicipal_public_body
railcar
towboat
amendment
barge
Operating Leased Assets [Line Items]              
Operating lease, number of lessors   2 1        
Lessee, operating lease, number of amendments | amendment           2  
Railroad Transportation Equipment              
Operating Leased Assets [Line Items]              
Lessee, operating lease, number of leased assets | railcar       111      
Maritime Equipment              
Operating Leased Assets [Line Items]              
Lessee, operating lease, number of leased assets         3    
Modified number of leased assets, due to change in fuel strategy         2    
Barges              
Operating Leased Assets [Line Items]              
Lessee, operating lease, number of leased assets | barge             20
Municipality One | Utility System              
Operating Leased Assets [Line Items]              
Lessee, operating lease, renewal term 10 years            
Municipality Two | Utility System              
Operating Leased Assets [Line Items]              
Term of operating lease 10 years            
Non-Municipal Public Body | Utility System              
Operating Leased Assets [Line Items]              
Term of operating lease 27 years