Intangible Assets - Schedule of Amortization Expense Recognized (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024
Storm Recovery Property | CLECO POWER
Finite-Lived Intangible Assets [Line Items]
Amortization expense	$ 3,081	$ 3,020	$ 6,420	$ 6,347
Energy Transition Property | CLECO POWER
Finite-Lived Intangible Assets [Line Items]
Amortization expense	3,265	0	3,265	0
Power supply agreements
Finite-Lived Intangible Assets [Line Items]
Amortization expense	$ 186	$ 186	$ 372	$ 2,509