Income Taxes - Narrative (Details) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022	Dec. 31, 2022
Uncertain Tax Positions [Line Items]
Interest expense related to uncertain tax positions	$ 0	$ 0	$ 0	$ 0
Liability for uncertain tax positions	0		0		$ 0
Interest payable related to uncertain tax positions	0		0		0
Penalties	0	0	0	0
CLECO POWER
Uncertain Tax Positions [Line Items]
Interest expense related to uncertain tax positions	0	$ 0	0	$ 0
Liability for uncertain tax positions	0		0		0
Interest payable related to uncertain tax positions	$ 0		$ 0		$ 0