Intangible Assets and Goodwill - Schedule of Securitized Intangible Assets Subject to Amortization (Details) - Securitization - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Finite-Lived Intangible Assets [Line Items]
Storm Recovery Property intangible asset	$ 415,946	$ 415,946
Accumulated amortization	(17,288)	(2,823)
Net intangible asset subject to amortization	398,658	413,123
Cleco Power
Finite-Lived Intangible Assets [Line Items]
Storm Recovery Property intangible asset	415,946	415,946
Accumulated amortization	(17,288)	(2,823)
Net intangible asset subject to amortization	$ 398,658	$ 413,123