Storm Restoration, Securitization, and Cost Recovery (Details) $ in Thousands		1 Months Ended	2 Months Ended	3 Months Ended
	May 19, 2021 USD ($)	May 31, 2021	Oct. 28, 2020 hurricane	Mar. 31, 2022 USD ($)	Jun. 30, 2022 USD ($)	Mar. 24, 2022 USD ($)	Dec. 31, 2021 USD ($)	Sep. 28, 2021 USD ($)	Aug. 05, 2021 USD ($)	Mar. 29, 2021 USD ($)
Unusual or Infrequent Item, or Both [Line Items]
Securitized storm restoration costs						$ 424,100			$ 342,000
Securitized storm restoration costs, reserve for future costs									$ 100,000
Term Loan | Subsequent event | Forecast | LPSC Storm Recovery Bonds
Unusual or Infrequent Item, or Both [Line Items]
Debt, face amount					$ 425,000
Hurricanes
Unusual or Infrequent Item, or Both [Line Items]
Capitalization percentage				63.00%
Capitalized storm restoration costs, interim storm recovery amount	$ 16,000
Deferred storm restoration costs - Winter Storms Uri & Viola
Unusual or Infrequent Item, or Both [Line Items]
Capitalization percentage				80.00%
Deferred storm restoration costs - Hurricane Ida
Unusual or Infrequent Item, or Both [Line Items]
Securitized storm restoration costs						95,000
Securitized storm restoration costs, reserve for future costs								$ 100,000
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
Storm recovery, reserve for future storm costs
Unusual or Infrequent Item, or Both [Line Items]
Securitized storm restoration costs						100,000
Storm recover, 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 assets				$ 747,258			$ 759,165
CLECO POWER | Hurricane Laura, Delta and Zeta
Unusual or Infrequent Item, or Both [Line Items]
Regulatory assets				73,000
CLECO POWER | Deferred storm restoration costs - Winter Storms Uri & Viola
Unusual or Infrequent Item, or Both [Line Items]
Regulatory assets				1,912			1,912
CLECO POWER | Deferred storm restoration costs - Hurricane Ida
Unusual or Infrequent Item, or Both [Line Items]
Regulatory assets				37,841			$ 37,617
CLECO POWER | Hurricanes
Unusual or Infrequent Item, or Both [Line Items]
Number of hurricanes | hurricane			3
Estimate of storm restoration costs				239,900
Capitalized storm restoration costs				150,400
CLECO POWER | Deferred storm restoration costs - Winter Storms Uri & Viola
Unusual or Infrequent Item, or Both [Line Items]
Estimate of storm restoration costs				10,100
Capitalized storm restoration costs				8,100						$ 50,000
Fuel and purchased power costs				55,000
Capitalized storm restoration costs, amortization period		12 months
CLECO POWER | Deferred storm restoration costs - Hurricane Ida
Unusual or Infrequent Item, or Both [Line Items]
Estimate of storm restoration costs				$ 92,600
Capitalization percentage				57.00%
Capitalized storm restoration costs				$ 52,500