Retirement and Other Employee Benefits

9 Months Ended

Oct. 01, 2021

Retirement Benefits [Abstract]

Retirement and Other Employee Benefits

Retirement and Other Employee Benefits

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				Nine months ended
	October 1, 2021		September 25, 2020		October 1, 2021		September 25, 2020
Service cost	$	1.5	$	1.6	$	4.5	$	4.8
Interest cost	1.3		1.5		4.0		4.4
Expected return on assets	(0.5)		(0.6)		(1.6)		(1.8)
Amortization of net actuarial loss	0.1		0.3		0.4		0.9
Net periodic benefit costs	$	2.4	$	2.8	$	7.3	$	8.3

We provide certain other retirement benefits to certain employees who are not U.S.-based and are not included above. Generally, benefits under these programs are based on an employee’s length of service and level of compensation. These programs are immaterial to our consolidated financial statements. The net periodic benefit costs related to other non-U.S.-based plans is $0.9 million for the quarter ended October 1, 2021 and $0.8 million for the quarter ended September 25, 2020. The net periodic benefit costs related to other non-U.S.-based plans is $2.7 million for the nine months ended October 1, 2021 and $2.4 million for the nine months ended September 25, 2020.