Schedule I Financial Statements of Cleco Holdings (Parent Company Only) - Cash Distributions and Equity Contributions (Details)	12 Months Ended
	Dec. 31, 2023 USD ($)	Dec. 31, 2022 USD ($)	Dec. 31, 2021 USD ($)	May 21, 2021
Cleco Holdings
Condensed Financial Statements, Captions [Line Items]
Contribution from member/parent	$ 0	$ 0	$ 0
Contributions from member	53,500,000	219,600,000	0
Parent Company
Condensed Financial Statements, Captions [Line Items]
Ratio of total indebtedness to total capitalization				0.650
Cash distributions received from affiliates	134,838,000	242,500,000	111,000,000
Parent Company | CLECO POWER
Condensed Financial Statements, Captions [Line Items]
Cash distributions received from affiliates	94,838,000	105,500,000	0
Parent Company | Cleco Cajun
Condensed Financial Statements, Captions [Line Items]
Cash distributions received from affiliates	40,000,000	137,000,000	111,000,000
Parent Company | Cleco Holdings
Condensed Financial Statements, Captions [Line Items]
Contributions made to affiliates	0	0	0
Contribution from member/parent	0	0	0
Contributions from member	$ 53,500,000	219,600,000	0
Maximum
Condensed Financial Statements, Captions [Line Items]
Ratio of total indebtedness to total capitalization	0.65
CLECO POWER | Cleco Holdings
Condensed Financial Statements, Captions [Line Items]
Contribution from member/parent	$ 0	0	0
Contributions from member	$ 94,800,000	$ 105,500,000	$ 0
CLECO POWER | Maximum
Condensed Financial Statements, Captions [Line Items]
Ratio of total indebtedness to total capitalization	0.650