Schedule I Financial Statements of Cleco Holdings (Parent Company Only) - Cash Distributions and Equity Contributions (Details)	12 Months Ended
	Dec. 31, 2024 USD ($)	Dec. 31, 2023 USD ($)	Dec. 31, 2022 USD ($)
Cleco Holdings
Condensed Financial Statements, Captions [Line Items]
Contribution from member/parent	$ 0	$ 0	$ 0
Distributions to member	145,000,000	53,500,000	219,600,000
Parent Company
Condensed Financial Statements, Captions [Line Items]
Cash distributions received from affiliates	196,000,000	134,838,000	242,500,000
Parent Company | CLECO POWER
Condensed Financial Statements, Captions [Line Items]
Cash distributions received from affiliates	95,000,000	94,838,000	105,500,000
Parent Company | Cleco Cajun
Condensed Financial Statements, Captions [Line Items]
Cash distributions received from affiliates	101,000,000	40,000,000	137,000,000
Parent Company | Cleco Holdings
Condensed Financial Statements, Captions [Line Items]
Contributions made to affiliates	0	0	0
Contribution from member/parent	0	0	0
Distributions to member	$ 145,000,000.0	53,500,000	219,600,000
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
Distributions to member	$ 95,000,000	$ 94,800,000	$ 105,500,000
CLECO POWER | Maximum
Condensed Financial Statements, Captions [Line Items]
Ratio of total indebtedness to total capitalization	0.65
CLECO POWER | Maximum | Parent Company
Condensed Financial Statements, Captions [Line Items]
Ratio of total indebtedness to total capitalization	0.650