Recent Authoritative Guidance (Details) - USD ($) $ in Thousands	Jun. 30, 2019	Jan. 01, 2019
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Right of use assets	$ 14,618
Lease liabilities	14,522
Accounting Standards Update 2016-02
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Right of use assets		$ 16,100
Lease liabilities		16,100
CLECO POWER
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Right of use assets	14,352
Lease liabilities	$ 14,238
CLECO POWER | Accounting Standards Update 2016-02
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Right of use assets		15,900
Lease liabilities		$ 15,900