Variable Interest Entities - Schedule of Equity Method Investments (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Dec. 31, 2023
Schedule of Equity Method Investments [Line Items]
Total equity investment in investee	$ 1,916		$ 1,992
Operating revenue	276,842	$ 320,581
Interest income	(42,792)	(40,005)
CLECO POWER
Schedule of Equity Method Investments [Line Items]
Purchase price	12,873		12,873
Cash contributions	6,399		6,399
Distributions	(18,034)		(17,280)
Equity income from investee	678		0
Total equity investment in investee	1,916		$ 1,992
Operating revenue	288,034	324,688
Interest income	(25,514)	(24,855)
CLECO POWER | Equity Method Investment, Nonconsolidated Investee or Group of Investees
Schedule of Equity Method Investments [Line Items]
Operating revenue	184	124
Operating expenses	(87)	(124)
Gain on sale of property	1,356	0
Interest income	(97)	0
Income before taxes	$ 1,356	$ 0