Variable Interest Entities - Schedule of Equity Method Investments (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022	Dec. 31, 2022
Schedule of Equity Method Investments [Line Items]
Total equity investment in investee	$ 1,992		$ 1,992		$ 2,072
Operating revenue	393,846	$ 496,764	999,222	$ 1,194,145
CLECO POWER
Schedule of Equity Method Investments [Line Items]
Purchase price	12,873		12,873		12,873
Cash contributions	6,399		6,399		6,399
Distributions	(17,280)		(17,280)		(17,200)
Total equity investment in investee	1,992		1,992		$ 2,072
Operating revenue	397,814	500,839	1,011,318	1,206,144
CLECO POWER | Equity Method Investment, Nonconsolidated Investee or Group of Investees
Schedule of Equity Method Investments [Line Items]
Operating revenue	78	65	311	215
Operating expenses	(78)	(65)	(311)	(215)
Income before taxes	$ 0	$ 0	$ 0	$ 0