Accumulated Other Comprehensive Loss (Tables)

3 Months Ended

Mar. 31, 2022

Accumulated Other Comprehensive Loss [Abstract]

Schedule of Accumulated Other Comprehensive Loss, Net of Tax

Accumulated other comprehensive loss, net of tax, consisted of the following as of March 31, 2022 and December 31, 2021 (dollars in thousands):

	March 31, 2022		December 31, 2021
Unfunded benefit obligation for pensions and other postretirement benefit plans -    net of taxes of $2,861 and $2,934, respectively	$	10,763	$	11,039

Reclassification out of Accumulated Other Comprehensive Income

The following table details the reclassifications out of accumulated other comprehensive loss to net income by component for the three months ended March 31 (dollars in thousands):

	Amounts Reclassified from Accumulated Other Comprehensive Loss
Details about Accumulated Other Comprehensive Loss Components (Affected Line Item in Statement of Income)	2022			2021
Amortization of defined benefit pension and postretirement benefit items
Amortization of net prior service cost (a)	$	(200	)	$	(200	)
Amortization of net loss (a)		2,038			3,191
Adjustment due to effects of regulation (a)		(1,489	)		(2,592	)
Total before tax (b)		349			399
Tax expense (b)		(73	)		(84	)
Net of tax (b)	$	276		$	315

(a)These accumulated other comprehensive loss components are included in the computation of net periodic pension cost (see Note 6 for additional details).

(b)Description is also the affected line item on the Condensed Consolidated Statement of Income.