Leases - Lease Income Under Cottonwood Sale Leaseback (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Lessee, Lease, Description [Line Items]
Sales-Type Lease, Lease Income, Statement of Income or Comprehensive Income [Extensible Enumeration]	Other operations	Other operations
CLECO CAJUN
Lessee, Lease, Description [Line Items]
Fixed payments	$ 40,000	$ 40,000
Variable payments	22,359	18,226
Amortization of deferred lease liability	9,205	9,205
Total lease income	$ 71,564	$ 67,431