Accumulated Other Comprehensive Loss (Tables)

12 Months Ended

Dec. 31, 2020

Accumulated Other Comprehensive Loss [Line Items]

Schedule of Components of Accumulated Other Comprehensive Loss

Cleco
(THOUSANDS)	POSTRETIREMENT BENEFIT NET GAIN (LOSS)
Balances, Dec. 31, 2017	$	(2,921)
Other comprehensive income before reclassifications
Postretirement benefit adjustments incurred during the year	3,681
Amounts reclassified from accumulated other comprehensive income
Amortization of postretirement benefit net loss	1,615
Reclassification of effect of tax rate change	(589)
Balances, Dec. 31, 2018	$	1,786
Other comprehensive income before reclassifications
Postretirement benefit adjustments incurred during the year	(18,877)
Amounts reclassified from accumulated other comprehensive income
Amortization of postretirement benefit net gain	(422)
Balances, Dec. 31, 2019	$	(17,513)
Other comprehensive income before reclassifications
Postretirement benefit adjustments incurred during the year	(10,026)
Amounts reclassified from accumulated other comprehensive income
Amortization of postretirement benefit net loss	1,743
Balances, Dec. 31, 2020	$	(25,796)

Cleco Power
(THOUSANDS)	POSTRETIREMENT BENEFIT NET (LOSS) GAIN		NET (LOSS) GAIN ON CASH FLOW HEDGES		TOTAL AOCI
Balances, Dec. 31, 2017	$	(8,377)	$	(5,306)	$	(13,683)
Other comprehensive loss before reclassifications
Postretirement benefit adjustments incurred during the year	954		—		954
Amounts reclassified from accumulated other comprehensive loss
Amortization of postretirement benefit net loss	1,789		—		1,789
Reclassification of net loss to interest charges	—		254		254
Reclassification of effect of tax rate change	(1,426)		(1,070)		(2,496)
Balances, Dec. 31, 2018	$	(7,060)	$	(6,122)	$	(13,182)
Other comprehensive loss before reclassifications
Postretirement benefit adjustments incurred during the year	(10,344)		—		(10,344)
Amounts reclassified from accumulated other comprehensive loss
Amortization of postretirement benefit net loss	687		—		687
Reclassification of net loss to interest charges	—		254		254
Balances, Dec. 31, 2019	$	(16,717)	$	(5,868)	$	(22,585)
Other comprehensive loss before reclassifications
Postretirement benefit adjustments incurred during the year	(4,050)		—		(4,050)
Amounts reclassified from accumulated other comprehensive loss
Amortization of postretirement benefit net loss	1,628		—		1,628
Reclassification of net gain to interest charges	—		254		254
Balances, Dec. 31, 2020	$	(19,139)	$	(5,614)	$	(24,753)

CLECO POWER

Accumulated Other Comprehensive Loss [Line Items]

Schedule of Components of Accumulated Other Comprehensive Loss

Cleco Power
(THOUSANDS)	POSTRETIREMENT BENEFIT NET (LOSS) GAIN		NET (LOSS) GAIN ON CASH FLOW HEDGES		TOTAL AOCI
Balances, Dec. 31, 2017	$	(8,377)	$	(5,306)	$	(13,683)
Other comprehensive loss before reclassifications
Postretirement benefit adjustments incurred during the year	954		—		954
Amounts reclassified from accumulated other comprehensive loss
Amortization of postretirement benefit net loss	1,789		—		1,789
Reclassification of net loss to interest charges	—		254		254
Reclassification of effect of tax rate change	(1,426)		(1,070)		(2,496)
Balances, Dec. 31, 2018	$	(7,060)	$	(6,122)	$	(13,182)
Other comprehensive loss before reclassifications
Postretirement benefit adjustments incurred during the year	(10,344)		—		(10,344)
Amounts reclassified from accumulated other comprehensive loss
Amortization of postretirement benefit net loss	687		—		687
Reclassification of net loss to interest charges	—		254		254
Balances, Dec. 31, 2019	$	(16,717)	$	(5,868)	$	(22,585)
Other comprehensive loss before reclassifications
Postretirement benefit adjustments incurred during the year	(4,050)		—		(4,050)
Amounts reclassified from accumulated other comprehensive loss
Amortization of postretirement benefit net loss	1,628		—		1,628
Reclassification of net gain to interest charges	—		254		254
Balances, Dec. 31, 2020	$	(19,139)	$	(5,614)	$	(24,753)