Intangible Assets - Schedule of Securitized Intangible Assets Subject to Amortization (Details) - Storm Recover Property - USD ($) $ in Thousands	Mar. 31, 2025	Dec. 31, 2024
Finite-Lived Intangible Assets [Line Items]
Storm Recovery Property intangible asset	$ 415,946	$ 415,946
Accumulated amortization	(34,377)	(31,038)
Net securitized intangible asset subject to amortization	381,569	384,908
CLECO POWER
Finite-Lived Intangible Assets [Line Items]
Storm Recovery Property intangible asset	415,946	415,946
Accumulated amortization	(34,377)	(31,038)
Net securitized intangible asset subject to amortization	$ 381,569	$ 384,908