Discontinued Operations - Schedule of Assets and Liabilities (Details) - Discontinued Operations, Held-for-sale - Cleco Cajun - USD ($) $ in Thousands	Jun. 01, 2024	Dec. 31, 2023
Operating revenue, net
Cash, cash equivalents, and restricted cash equivalents		$ 4,100
Accounts receivable		70,001
Fuel inventory, at average cost		47,243
Materials and supplies, at average cost		36,283
Energy risk management assets		1,066
Property, plant, and equipment, net		648,676
Prepayments		18,587
Other assets		20,207
Accumulated loss recognized on classification as held for sale	$ (217,100)	(173,000)
Total assets held for sale - discontinued operations		705,732
Accounts payable		30,442
Deferred lease revenue		19,945
Intangible liabilities		12,695
Asset retirement obligations		46,165
Other liabilities		5,705
Total liabilities held for sale - discontinued operations		114,952
Other
Operating revenue, net
Intangible assets - other		$ 32,569