Fair Value Accounting and Financial Instruments - Significant Unobservable Inputs Used in Developing Fair Value of Level 3 Positions (Details) - Measured on a Recurring Basis - Level 3 $ in Thousands	Sep. 30, 2022 USD ($) $ / MW	Dec. 31, 2021 USD ($) $ / MW
FAIR VALUE
ASSETS | $	$ 5,977	$ 6,977
LIABILITIES | $	3,982	834
CLECO POWER
FAIR VALUE
ASSETS | $	5,195	5,515
LIABILITIES | $	$ 457	$ 597
Minimum
FAIR VALUE
FORWARD PRICE RANGE (usd per mwh) | $ / MW	(14.33)	(3.94)
Minimum | CLECO POWER
FAIR VALUE
FORWARD PRICE RANGE (usd per mwh) | $ / MW	(6.64)	(4.91)
Maximum
FAIR VALUE
FORWARD PRICE RANGE (usd per mwh) | $ / MW	18.50	9.25
Maximum | CLECO POWER
FAIR VALUE
FORWARD PRICE RANGE (usd per mwh) | $ / MW	18.50	9.25