Regulatory Assets and Liabilities - Narrative (Details) - CLECO POWER - USD ($) $ in Thousands		9 Months Ended
	Sep. 20, 2023	Sep. 30, 2023	Dec. 31, 2022
Regulatory Assets [Line Items]
Regulatory liabilities		$ 138,004	$ 161,652
Regulatory assets		582,980	598,100
Storm reserves
Regulatory Assets [Line Items]
Regulatory liabilities		106,789	118,762
Storm reserves | Hurricane Ida
Regulatory Assets [Line Items]
Regulatory liabilities			15,500
Decrease in regulatory liabilities	$ 10,300
Accumulated deferred fuel costs
Regulatory Assets [Line Items]
Decrease in regulatory assets		37,400
Regulatory assets		20,241	57,881
Hurricane Ida
Regulatory Assets [Line Items]
Regulatory assets		$ 0	$ 9,409