Miscellaneous Financial Information (Unaudited), Dividends and Preferred Stock Redemption (Details) (USD $)	3 Months Ended								12 Months Ended			1 Months Ended
	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Oct. 31, 2014	Jul. 31, 2014	Apr. 30, 2014	Jan. 31, 2014	Oct. 31, 2013	Jul. 31, 2013	Apr. 30, 2013	Jan. 31, 2013	Jan. 30, 2015
Dividends Payable [Line Items]
Common Stock, Dividends, Per Share, Declared	$ 0.40	$ 0.40	$ 0.40	$ 0.3625	$ 0.3625	$ 0.3625	$ 0.3625	$ 0.3375	$ 1.5625	$ 1.425	$ 1.30
Common Stock [Member]
Dividends Payable [Line Items]
Common Stock, Dividends, Per Share, Declared												$ 0.40	$ 0.40	$ 0.40	$ 0.3625	$ 0.3625	$ 0.3625	$ 0.3625	$ 0.3375
Subsequent Event [Member] | Common Stock [Member]
Dividends Payable [Line Items]
Common Stock, Dividends, Per Share, Declared																				$ 0.40
Cleco Corporation [Member] | Maximum [Member] | Common Stock [Member]
Dividends Payable [Line Items]
Common Stock, Dividends, Per Share, Declared									$ 0.40