Consolidated Statements of Comprehensive Income (Parenthetical) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Tax (expense) benefit of postretirement benefits gain (loss)	$ 2,922	$ 6,808	$ 1,868
CLECO POWER
Tax (expense) benefit of postretirement benefits gain (loss)	855	3,408	968
Net tax expense (benefit) of net derivative gain (loss)	$ 90	$ 90	$ 90