Retirement and Other Employee Benefits (Tables)

6 Months Ended

Jun. 30, 2023

Retirement Benefits [Abstract]

Net periodic benefit costs of pension plans and post-retirement plans

The following table sets forth the net periodic benefit costs of our defined benefit pension plans and post-retirement benefit plans (U.S. dollars in millions):

	Quarter ended				Six months ended
	June 30, 2023		July 1, 2022		June 30, 2023		July 1, 2022
Service cost	$	1.4	$	1.4	$	2.8	$	2.9
Interest cost	1.8		1.4		3.6		2.7
Expected return on assets	(0.8)		(0.7)		(1.6)		(1.4)
Amortization of net actuarial loss	0.1		0.1		0.3		0.3
Net periodic benefit costs	$	2.5	$	2.2	$	5.1	$	4.5