Accumulated Other Comprehensive Loss (Tables)

12 Months Ended

Dec. 31, 2023

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

Schedule of Components of Accumulated Other Comprehensive Loss

The components of AOCL on the Consolidated Balance Sheets for the periods presented and the changes during the respective periods are shown net of taxes in the following table.

(Thousands of dollars)	Foreign Currency Translation Gains (Losses)		Retirement and Postretirement Benefit Plan Adjustments			Total
Balance at December 31, 2021	$	(311,895)	$	(215,816)		$	(527,711)
2022 components of other comprehensive income (loss):
Before reclassifications to income	(106,335)		87,362			(18,973)
Reclassifications to income	–		11,998		¹	11,998
Net other comprehensive income	(106,335)		99,360			(6,975)
Balance at December 31, 2022	(418,230)		(116,456)			(534,686)
2023 components of other comprehensive income (loss):
Before reclassifications to income	36,598		(27,580)			9,018
Reclassifications to income	–		4,551		¹	4,551
Net other comprehensive income (loss)	36,598		(23,029)			13,569
Balance at December 31, 2023	$	(381,632)	$	(139,485)		$	(521,117)

1 Reclassifications before taxes of $5.6 million and $15.3 million are included in the computation of net periodic benefit expense in 2023 and 2022, respectively. See Note J for additional information. Related income taxes of $1.1 million and $3.3 million are included in income tax expense in 2023 and 2022, respectively.