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Discontinued Operations - Narrative (Details) - USD ($) $ in Thousands	1 Months Ended	3 Months Ended
	Feb. 28, 2019	Mar. 31, 2023	Mar. 31, 2022
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Impairment charge		$ 96,000	$ 0
Discontinued Operations, Held-for-sale \| Cleco Cajun
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Impairment charge		96,000	$ 0
LPSC
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Debt repayment commitment	$ 400,000
Long-term debt outstanding		$ 132,300