Securitization (Details) $ in Thousands		12 Months Ended	24 Months Ended
	Jun. 01, 2021 USD ($)	Dec. 31, 2021 USD ($)	Dec. 31, 2021 USD ($) hurricane storm	Dec. 31, 2022 USD ($)	Jun. 22, 2022 USD ($)	Apr. 01, 2022 USD ($)
Unusual or Infrequent Item, or Both [Line Items]
Securitized storm restoration costs						$ 425,000
Hurricanes
Unusual or Infrequent Item, or Both [Line Items]
Capitalized storm restoration costs, interim storm recovery amount	$ 16,000
Storm recovery, wholesale operations and maintenance
Unusual or Infrequent Item, or Both [Line Items]
Estimate of storm restoration costs		$ 7,300
Storm recovery, hurricanes Laura, Delta, and Zeta and winter storms Uri and Viola
Unusual or Infrequent Item, or Both [Line Items]
Securitized storm restoration costs						220,100
Deferred storm restoration costs - Hurricane Ida
Unusual or Infrequent Item, or Both [Line Items]
Securitized storm restoration costs						95,000
Storm recovery, reserve for future storm costs
Unusual or Infrequent Item, or Both [Line Items]
Securitized storm restoration costs						100,900
Storm recovery, upfront securitization costs and ongoing costs
Unusual or Infrequent Item, or Both [Line Items]
Securitized storm restoration costs						$ 9,000
Cleco Power
Unusual or Infrequent Item, or Both [Line Items]
Regulatory asset		759,165	$ 759,165	$ 589,297
Cleco Power | Senior notes, floating rate, due 2023
Unusual or Infrequent Item, or Both [Line Items]
Debt redeemed					$ 325,000
Cleco Power | Cleco Securitization I, senior secured storm recovery bonds
Unusual or Infrequent Item, or Both [Line Items]
Aggregate principal amount					$ 425,000
Cleco Power | Hurricanes
Unusual or Infrequent Item, or Both [Line Items]
Number of hurricanes | hurricane			4
Number of severe winter storms | storm			2
Estimate of storm restoration costs			$ 342,700
Capitalized storm restoration costs		211,100	211,100
Cleco Power | Storm recovery, wholesale operations and maintenance
Unusual or Infrequent Item, or Both [Line Items]
Estimate of storm restoration costs		7,300
Cleco Power | Hurricanes
Unusual or Infrequent Item, or Both [Line Items]
Regulatory asset		$ 124,300	$ 124,300