Regulatory Assets and Liabilities - Narrative (Details) - CLECO POWER - USD ($) $ in Thousands	Mar. 31, 2025	Dec. 31, 2024
Regulatory Assets [Line Items]
Regulatory assets	$ 254,820	$ 498,883
Lignite Mine | Mine closure costs
Regulatory Assets [Line Items]
Regulatory assets		136,800
Dolet Hills | Station closure costs
Regulatory Assets [Line Items]
Regulatory assets		122,200
Storm reserve
Regulatory Assets [Line Items]
Storm recovery cost	70,900	76,200
Accumulated restoration costs	$ 46,000	$ 43,300