Schedule I Financial Statements of Cleco Corporation, Summary of Significant Accounting Policies (Details) $ in Millions	Dec. 31, 2015 USD ($)
Summary of Significant Accounting Policies [Abstract]
Percent of restricted consolidated net assets of consolidated subsidiaries exceeding total consolidated net assets (in hundredths)	25.00%
Cleco Corporation [Member]
Summary of Significant Accounting Policies [Abstract]
Restricted net assets of consolidated subsidiaries	$ 733.1
Percent of restricted consolidated net assets of consolidated subsidiaries exceeding total consolidated net assets (in hundredths)	25.00%