Employee Benefit Plans (Tables)

12 Months Ended

Dec. 31, 2023

Retirement Benefits [Abstract]

Schedule of Components of Period Benefit Costs

The components of periodic benefit costs for the years ended December 31, 2023, 2022 and 2021 are summarized as follows:

	U.S. Pension Plan									Non-U.S. Pension Plans									Postretirement Medical and Other
	2023			2022			2021			2023			2022			2021			2023			2022			2021
Service cost - benefits earned    during the year	$	—		$	—		$	—		$	1.2		$	1.6		$	2.3		$	0.1		$	0.1		$	0.1
Interest cost of projected    benefit obligation		5.5			3.2			2.8			3.0			1.7			1.5			0.4			0.2			0.2
Expected return on assets		(3.9	)		(5.2	)		(4.9	)		(1.6	)		(1.2	)		(1.0	)		—			—			—
Amortization of prior service    cost		—			—			—			0.1			0.1			0.1			—			(1.4	)		(2.7	)
Amortization of actuarial net    loss (gain)		2.2			1.9			3.2			1.6			1.5			1.8			(1.2	)		(0.5	)		(0.3	)
Pension settlement gain		—			—			—			(0.1	)		(0.1	)		(0.9	)		—			—			—
Net periodic benefit cost	$	3.8		$	(0.1	)	$	1.1		$	4.2		$	3.6		$	3.8		$	(0.7	)	$	(1.6	)	$	(2.7	)
Weighted average    assumptions:
Effective discount rate for    benefit obligations		5.4	%		2.8	%		2.4	%		4.7	%		1.4	%		1.2	%		5.4	%		2.5	%		2.0	%
Expected return on    plan assets		5.0	%		4.7	%		4.3	%		5.4	%		2.9	%		1.6	%	N/A			N/A			N/A
Rate of compensation    increase	N/A			N/A			N/A				3.7	%		4.1	%		4.1	%	N/A			N/A			N/A

Reconciliation of the Changes in Benefit Obligation, the Changes in Plan Assets, and the Funded Status

The following is a reconciliation of the changes in benefit obligation, plan assets, and funded status as of December 31, 2023 and 2022:

	U.S. Pension Plan						Non-U.S. Pension Plans						Postretirement Medical and Other
	2023			2022			2023			2022			2023			2022
Change in Benefit Obligation
Benefit obligation, beginning of year	$	106.4		$	141.2		$	59.0		$	94.5		$	9.5		$	13.7
Service cost		—			—			1.2			1.6			0.1			0.1
Interest cost		5.5			3.2			3.0			1.7			0.4			0.2
Participant contributions		—			—			—			—			0.1			0.1
Actuarial (gain) loss		2.5			(30.1	)		(0.3	)		(27.1	)		(2.4	)		(3.4	)
Currency translation adjustment		—			—			2.6			(8.0	)		—			—
Pension settlement		—			—			(0.1	)		(0.3	)		—			—
Benefits paid		(8.0	)		(7.9	)		(3.5	)		(3.4	)		(1.1	)		(1.2	)
Benefit obligation, end of year	$	106.4		$	106.4		$	61.9		$	59.0		$	6.6		$	9.5
Change in Plan Assets
Fair value of plan assets, beginning of year	$	82.3		$	114.6		$	29.7		$	50.2		$	—		$	—
Actual return on plan assets		7.4			(24.9	)		—			(15.0	)		—			—
Employer contributions		0.5			0.5			3.6			3.4			1.0			1.1
Participant contributions		—			—			—			—			0.1			0.1
Currency translation adjustment		—			—			1.6			(5.2	)		—			—
Pension settlement		—			—			(0.1	)		(0.3	)		—			—
Benefits paid		(8.0	)		(7.9	)		(3.5	)		(3.4	)		(1.1	)		(1.2	)
Fair value of plan assets, end of year		82.2			82.3			31.3			29.7			—			—
Funded status	$	(24.2	)	$	(24.1	)	$	(30.6	)	$	(29.3	)	$	(6.6	)	$	(9.5	)
Amounts recognized in the Consolidated    Balance Sheets as of December 31
Pension asset	$	—		$	—		$	2.7		$	—		$	—		$	—
Short-term pension obligation		(0.5	)		(0.5	)		(1.2	)		(1.2	)		—			—
Long-term pension obligation		(23.7	)		(23.6	)		(32.1	)		(28.1	)		—			—
Short-term postretirement medical and other    benefit obligations		—			—			—			—			(1.0	)		(1.3	)
Long-term postretirement medical and other    benefit obligations		—			—			—			—			(5.6	)		(8.2	)
Net amount recognized	$	(24.2	)	$	(24.1	)	$	(30.6	)	$	(29.3	)	$	(6.6	)	$	(9.5	)
Weighted-Average Assumptions
Discount rate		5.1	%		2.8	%		4.2	%		4.2	%		5.0	%		5.4	%
Rate of compensation increase	N/A			N/A				3.8	%		2.7	%	N/A			N/A

Amounts Recognized in Accumulated Other Comprehensive Loss

Amounts recognized in accumulated other comprehensive loss as of December 31, 2023 and 2022, are summarized as follows:

	Pensions						Postretirement Medical and Other
	2023			2022			2023		2022
Net actuarial gain (loss)	$	(32.0	)	$	(35.0	)	$	8.3	$	7.0
Prior service cost		(0.2	)		(0.3	)		—		—
Total amount recognized	$	(32.2	)	$	(35.3	)	$	8.3	$	7.0

Schedule of the Weighted-Average Asset Allocation of the Pension Plans

The weighted-average asset allocation of the U.S. Pension Plan as of December 31, 2023 and 2022, by asset category are summarized as follows:

	2023			2022
Equity		53.3	%		52.8	%
Fixed income		39.7	%		36.9	%
Other		7.0	%		10.3	%
Total		100.0	%		100.0	%

The weighted-average asset allocation of the Non-U.S. Pension Plans as of December 31, 2023 and 2022, by asset category are summarized as follows:

	2023			2022
Equity		—	%		—	%
Fixed income		39.4	%		45.2	%
Other(1)		60.6	%		54.8	%
Total		100.0	%		100.0	%

(1)Includes diversified investments that have equity and fixed income holdings.

Schedule of the Actual Allocations for the Pension Assets and Target Allocations by Asset Class

The actual and target allocations for the pension assets as of December 31, 2023, by asset class, are summarized as follows:

	Target Allocations						Weighted Average Asset Allocations
	U.S. Plan			Non-U.S. Plans			U.S. Plans			Non-U.S. Plans
Equity Securities		50.0	%		0.0	%		53.3	%		—	%
Debt Securities		40.0	%		48.0	%		39.7	%		39.4	%
Other		10.0	%		52.0	%		7.0	%		60.6	%

Schedule of Plan Assets Using the Fair Value Hierarchy

The following tables present the Company’s plan assets using the fair value hierarchy as of December 31, 2023 and 2022. The fair value hierarchy has three levels based on the reliability of the inputs used to determine fair value. Refer to Note 5, “Fair Value of Financial Instruments,” for definitions of each fair value level.

	December 31, 2023
Assets	Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Unobservable Inputs (Level 3)		Net Asset Value ("NAV")*		Total
Equity:
U.S. equity	$	—	$	—	$	—	$	21.7	$	21.7
International equity		—		—		—		22.1		22.1
Fixed income:
Corporate bonds and notes		—		—		—		16.6		16.6
Government and agency bonds		—		—		—		25.5		25.5
Commingled funds		—		—		—		11.1		11.1
International fixed income		—		—		—		4.7		4.7
Other:
Cash and cash equivalents		1.0		—		—		—		1.0
Money market funds		0.7		—		—		—		0.7
Annuity contracts		—		—		7.4		—		7.4
Other		—		—		—		2.7		2.7
Total	$	1.7	$	—	$	7.4	$	104.4	$	113.5

*Certain assets that are measured at fair value using the NAV per share practical expedient have not been classified in the fair value hierarchy.

	December 31, 2022
Assets	Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Unobservable Inputs (Level 3)		Net Asset Value ("NAV")*		Total
Equity:
U.S. equity	$	—	$	—	$	—	$	16.9	$	16.9
International equity		—		—		—		27.8		27.8
Fixed income:
Corporate bonds and notes		—		—		—		18.5		18.5
Government and agency bonds		—		—		—		25.4		25.4
Commingled funds		—		—		—		8.6		8.6
International fixed income		—		—		—		1.9		1.9
Other:
Cash and cash equivalents		0.9		—		—		—		0.9
Money market funds		—		0.7		—		—		0.7
Annuity contracts		—		—		8.5		—		8.5
Other		—		—		—		2.8		2.8
Total	$	0.9	$	0.7	$	8.5	$	101.9	$	112.0

*Certain assets that are measured at fair value using the NAV per share practical expedient have not been classified in the fair value hierarchy.

Reconciliation of the Fair Values Measurements of Plan Assets Using Significant Unobservable Inputs (Level 3) from the Beginning of the Year to the End of the Year

A reconciliation of the fair value measurements of plan assets using significant unobservable inputs (Level 3) from the beginning of the year to the end of the year is as follows:

	Annuity Contracts Year Ended December 31,
	2023			2022
Beginning Balance	$	8.5		$	12.6
Additions		0.5			—
Actual return on assets		(1.2	)		(1.9	)
Benefit payments		(0.9	)		(0.8	)
Foreign currency impact		0.5			(1.4	)
Ending Balance	$	7.4		$	8.5

Schedule of Projected Future Benefit Payments from the Plans

Projected future benefit payments from the plans as of December 31, 2023 are estimated as follows:

	U.S. Pension Plan		Non-U.S. Pension Plans		Postretirement Medical and Other
2024	$	8.7	$	3.0	$	1.0
2025		8.8		3.0		0.9
2026		8.7		3.4		0.8
2027		8.7		3.6		0.8
2028		8.7		4.2		0.7
Thereafter		41.2		20.7		2.6
Total	$	84.8	$	37.9	$	6.8

Schedule of Fair Value of Plan Assets for which the Accumulated Benefit Obligation is in Excess of Plan Assets

The fair value of plan assets for which the accumulated benefit obligation is in excess of the plan assets as of December 31, 2023 and 2022 is summarized as follows:

	U.S. Pension Plan				Non U.S. Pension Plans
	2023		2022		2023		2022
Projected benefit obligation	$	106.4	$	106.4	$	33.8	$	59.0
Accumulated benefit obligation		106.4		106.4		30.6		56.1
Fair value of plan assets		82.2		82.3		0.5		29.7