Accumulated Other Comprehensive Loss

12 Months Ended

Dec. 31, 2020

Accumulated Other Comprehensive Loss [Abstract]

Accumulated Other Comprehensive Loss

NOTE 20. ACCUMULATED OTHER COMPREHENSIVE LOSS

Accumulated Other Comprehensive Loss

Accumulated other comprehensive loss, net of tax, consisted of the following as of December 31 (dollars in thousands):

	2020		2019
Unfunded benefit obligation for pensions and other postretirement benefit    plans - net of taxes of $3,822 and $2,727, respectively	$	14,378	$	10,259

The following table details the reclassifications out of accumulated other comprehensive loss by component for the years ended December 31 (dollars in thousands):

	Amounts Reclassified from Accumulated Other Comprehensive Loss
Details about Accumulated Other Comprehensive Loss Components (Affected Line Item in Statements of Income)	2020			2019			2018
Amortization of defined benefit pension items
Amortization of net prior service cost (a)	$	(794	)	$	(794	)	$	(904	)
Amortization of net loss (a)		5,586			17,074			(15,554	)
Adjustment due to effects of regulation (a)		(10,006	)		(19,309	)		18,947
Total before tax (b)		(5,214	)		(3,029	)		2,489
Tax expense (b)		1,095			636			(523	)
Net of tax (b)	$	(4,119	)	$	(2,393	)	$	1,966

(a) These accumulated other comprehensive loss components are included in the computation of net periodic pension cost (see Note 11 for additional details).

(b) Description is also the affected line item on the Consolidated Statements of Income