Leases - Future Minimum Lease Payments Due Under Finance Lease (Details) $ in Thousands	Sep. 30, 2019 USD ($)
Years ending Dec. 31,
Current liabilities	$ 602
Non-current liabilities	15,404
CLECO POWER
Lessee, Lease, Description [Line Items]
Three months ending Dec. 31, 2019	551
Years ending Dec. 31,
2020	2,203
2021	2,203
2022	2,203
2023	2,203
2024	2,203
Thereafter	17,675
Total minimum lease payments	29,241
Less: amount representing interest	13,235
Present value of net minimum finance lease payments	16,006
Current liabilities	602
Non-current liabilities	$ 15,404