Accumulated Other Comprehensive Loss (Tables)

3 Months Ended

Mar. 31, 2021

Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]

Components of Accumulated Other Comprehensive Loss

The components of Accumulated other comprehensive loss on the Consolidated Balance Sheets at December 31, 2020 and March 31, 2021 and the changes during the three-month period ended March 31, 2021, are presented net of taxes in the following table.

(Thousands of dollars)	Foreign Currency Translation Gains (Losses)		Retirement and Postretirement Benefit Plan Adjustments		Deferred Loss on Interest Rate Derivative Hedges		Total
Balance at December 31, 2020	$	(324,011)	(275,632)		(1,690)		(601,333)
Components of other comprehensive income (loss):
Before reclassifications to income and retained earnings	19,897		—		—		19,897
Reclassifications to income	—		4,136	¹	1,690	²	5,826
Net other comprehensive income (loss)	19,897		4,136		1,690		25,723
Balance at March 31, 2021	$	(304,114)	(271,496)		—		(575,610)

1 Reclassifications before taxes of $5,252 are included in the computation of net periodic benefit expense for the three-month period ended March 31, 2021.  See Note H for additional information.  Related income taxes of $1,116 are included in Income tax expense (benefit) for the three-month period ended March 31, 2021.

2 Reclassifications before taxes of $2,140 are included in Interest expense, net, for the three-month period ended March 31, 2021.  Related income taxes of $450 are included in Income tax expense (benefit) for the three-month period ended March 31, 2021.  See Note L for additional information.