Restructuring (Tables)

12 Months Ended

Dec. 31, 2023

2022 Plan

Restructuring Cost and Reserve [Line Items]

Summary of Activity Relating to Restructuring Plan Liabilities

The following table summarizes activity relating to the 2022 Restructuring Plan liabilities (in millions of dollars):

BALANCE, December 31, 2021	$	—
Restructuring costs		2.2
Costs paid or otherwise settled1		(0.5	)
BALANCE, December 31, 2022		1.7
Restructuring costs		5.0
Costs paid or otherwise settled1		(5.5	)
BALANCE, December 31, 2023	$	1.2

1.Cash paid during the years ended December 31, 2023 and December 31, 2022 was $5.0 million and $0.4 million, respectively.

2020 Plan

Restructuring Cost and Reserve [Line Items]

Summary of Activity Relating to Restructuring Plan Liabilities

The following table summarizes activity relating to the 2020 Restructuring Plan liabilities (in millions of dollars):

BALANCE, December 31, 2020	$	1.4
Restructuring costs		—
Costs paid or otherwise settled		(0.6	)
Other adjustments1		(0.8	)
BALANCE, December 31, 2021	$	—

1.In 2021, we revised our production forecasts, thereby reducing the estimated number of headcount reductions necessary under the 2020 Restructuring Plan as compared with our initial requirements. These reductions to accommodate the revised headcount requirements are included in Other adjustments with an offset to Restructuring costs in our Statements of Consolidated Income (Loss).