Leases - Total Lease Costs (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Finance lease cost
Amortization of ROU assets	$ 1,120	$ 1,120
Interest on lease liabilities	1,521	1,587
Operating lease cost	3,985	4,576
Variable lease cost	385	301
Total lease cost	7,011	7,584
Cleco Power
Finance lease cost
Amortization of ROU assets	1,120	1,120
Interest on lease liabilities	1,521	1,587
Operating lease cost	3,845	4,191
Variable lease cost	385	301
Total lease cost	$ 6,871	$ 7,199