Stockholders' Equity (Tables)

12 Months Ended

Dec. 31, 2023

Change in Accumulated Other Comprehensive Loss

The following tables summarize the changes in each component of Accumulated other comprehensive loss, net of tax:


(in millions of dollars) (a)	Actuarial Losses		Prior Service Costs		Foreign Currency Translation		Interest Rate Swaps		Total
Balance at January 1, 2023	$	(68.6)	$	(2.0)	$	(16.0)	$	2.6	$	(84.0)
Other comprehensive (loss) income before reclassifications	(2.8)		(0.1)		5.9		0.3		3.3
Amounts reclassified from accumulated other comprehensive loss	1.7		0.1		—		(2.4)		(0.6)
Net current-period other comprehensive (loss) income	(1.1)		—		5.9		(2.1)		2.7
Balance at December 31, 2023	$	(69.7)	$	(2.0)	$	(10.1)	$	0.5	$	(81.3)

(a) Amounts in parentheses indicate losses.


(in millions of dollars) (a)	Actuarial Losses		Prior Service Costs		Foreign Currency Translation		Interest Rate Swaps		Total
Balance at January 1, 2022	$	(67.9)	$	(2.4)	$	(3.4)	$	(0.5)	$	(74.2)
Other comprehensive (loss) income before reclassifications	(2.9)		0.3		(12.6)		2.9		(12.3)
Amounts reclassified from accumulated other comprehensive loss	2.2		0.1		—		0.2		2.5
Net current-period other comprehensive (loss) income	(0.7)		0.4		(12.6)		3.1		(9.8)
Balance at December 31, 2022	$	(68.6)	$	(2.0)	$	(16.0)	$	2.6	$	(84.0)

(a) Amounts in parentheses indicate losses.

Reclassifications from Accumulated Other Comprehensive Loss

The following table summarizes the amounts reclassified from Accumulated other comprehensive loss, net of tax, and the affected line item in the Consolidated Statements of Operations:


Details about Accumulated Other Comprehensive Loss Components	Amount Reclassified from Accumulated Other Comprehensive Loss				Affected Line Item in Consolidated Statements of Operations
	For the Years Ended December 31,
	2023		2022
	(in millions of dollars) (a)
Amortization of actuarial losses of defined benefit pension plans	$	(2.3)	$	(2.9)	Other expense (income), net
Amortization of prior service costs of defined benefit pension plans	(0.1)		(0.1)		Other expense (income), net
Interest rate swaps	3.2		(0.2)		Interest expense, net
Total before tax	0.8		(3.2)
Income tax (expense) benefit	(0.2)		0.7		Income tax expense
Total reclassifications for the period, net of tax	$	0.6	$	(2.5)

(a) Amount in parentheses indicate expenses on the Consolidated Statements of Operations.