Retirement Benefit Plans (Tables)

6 Months Ended

Jun. 30, 2023

Pension Plan

Defined Benefit Plan Disclosure [Line Items]

Schedule of Defined Benefit Plans Disclosures

The following table sets forth the net periodic benefit cost for the Company’s defined benefit pension plans. The amounts for the three and six months ended June 30, 2023 are based on calculations prepared by the Company's actuaries and represent the Company’s best estimate of that period’s proportionate share of the amounts to be recorded for the year ending December 31, 2023.

	U.S. Plans				International Plans				Total
	Three Months Ended June 30,				Three Months Ended June 30,				Three Months Ended June 30,
	2023		2022		2023		2022		2023		2022
Components of net periodic benefit cost (credit):
Service cost	$	0.2	$	1.8	$	0.5	$	0.4	$	0.7	$	2.2
Interest cost	4.5		4.1		2.9		1.4		7.4		5.5
Expected return on plan assets	(2.1)		(5.0)		(2.8)		(2.4)		(4.9)		(7.4)
Amortization of prior service cost	0.1		0.3		—		0.1		0.1		0.4
Recognition of net actuarial    (gains) losses	(1.0)		11.6		—		—		(1.0)		11.6
Net periodic benefit cost (credit)	$	1.7	$	12.8	$	0.6	$	(0.5)	$	2.3	$	12.3

	U.S. Plans				International Plans				Total
	Six Months Ended June 30,				Six Months Ended June 30,				Six Months Ended June 30,
	2023		2022		2023		2022		2023		2022
Components of net periodic benefit cost (credit):
Service cost	$	0.4	$	3.7	$	0.8	$	0.8	$	1.2	$	4.5
Interest cost	9.0		8.2		5.3		2.9		14.3		11.1
Expected return on plan assets	(4.2)		(10.2)		(5.3)		(4.9)		(9.5)		(15.1)
Amortization of prior service cost	0.1		0.6		0.1		0.1		0.2		0.7
Recognition of net actuarial    (gains) losses	(1.9)		14.2		—		—		(1.9)		14.2
Net periodic benefit cost (credit)	$	3.4	$	16.5	$	0.9	$	(1.1)	$	4.3	$	15.4