Income Taxes - Narrative (Details) - USD ($)	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Valuation Allowance [Line Items]
Interest payable related to uncertain tax positions	$ 0	$ 0
Interest expense related to uncertain tax positions	0	0	$ 0
Liability for uncertain tax positions	0	0
Penalties recognized	0	0	0
Payment of deferred employer payroll tax payments	3,000,000
LPSC | Excess ADIT
Valuation Allowance [Line Items]
Regulatory liability	257,400,000	302,000,000
Federal
Valuation Allowance [Line Items]
Operating loss carryforwards	192,900,000	718,300,000
State
Valuation Allowance [Line Items]
Operating loss carryforwards	82,500,000	423,700,000
NMTC
Valuation Allowance [Line Items]
NMTC carryforwards	88,200,000	92,400,000
Valuation allowance	0
Cleco Power
Valuation Allowance [Line Items]
Interest payable related to uncertain tax positions	0	0
Interest expense related to uncertain tax positions	0	0	$ 0
Liability for uncertain tax positions	0	0
Regulatory liability	152,849,000	95,544,000
Payment of deferred employer payroll tax payments	1,800,000
Cleco Power | LPSC | Excess ADIT
Valuation Allowance [Line Items]
Regulatory liability	257,400,000	302,000,000
Cleco Power | Federal
Valuation Allowance [Line Items]
Operating loss carryforwards	93,700,000	422,100,000
Cleco Power | State
Valuation Allowance [Line Items]
Operating loss carryforwards	82,500,000	$ 423,700,000
Cleco Power | NMTC
Valuation Allowance [Line Items]
Valuation allowance	$ 0