Regulatory Assets and Liabilities - Narrative (Details) $ in Millions		24 Months Ended
	Jun. 22, 2022 USD ($)	Dec. 31, 2021 storm hurricane	Jun. 30, 2022 USD ($)	Mar. 30, 2022 USD ($)
Regulatory Liabilities [Line Items]
Securitized storm restoration costs				$ 424.1
Deferred storm restoration costs - Hurricane Ida
Regulatory Liabilities [Line Items]
Securitized storm restoration costs				$ 95.0
CLECO POWER
Regulatory Liabilities [Line Items]
Securitized storm restoration costs, reserve for future costs	$ 102.3
CLECO POWER | Hurricanes
Regulatory Liabilities [Line Items]
Number of hurricanes | hurricane		4
Number of severe winter storms | storm		2
CLECO POWER | Deferred storm restoration costs - Hurricane Ida
Regulatory Liabilities [Line Items]
Securitized storm restoration costs, reserve for future costs			$ 15.4
Securitized storm restoration costs, amount withdrawn	$ 79.6
Securitized storm restoration costs, current			$ 9.3