Retirement Plans (Tables)

3 Months Ended

Apr. 02, 2023

Defined Benefit Pension Plans

Net Periodic Pension and Postretirement Benefit Costs

For the three months ended April 2, 2023 and April 3, 2022, Teradyne’s net periodic pension cost was comprised of the following:

	For the Three Months Ended
	April 2, 2023						April 3, 2022
	United States			Foreign			United States			Foreign
	(in thousands)
Service cost	$	272		$	109		$	397		$	206
Interest cost		1,711			262			1,222			118
Expected return on plan assets		(1,285	)		(9	)		(732	)		(20	)
Total net periodic pension cost	$	698		$	362		$	887		$	304

Postretirement Benefit Plans

Net Periodic Pension and Postretirement Benefit Costs

For the three months ended April 2, 2023 and April 3, 2022, Teradyne’s net periodic postretirement benefit cost was comprised of the following:

	For the Three Months Ended
	April 2,			April 3,
	2023			2022
	(in thousands)
Service cost	$	9		$	17
Interest cost		61			44
Amortization of prior service credit		(2	)		(2	)
Total net periodic postretirement benefit cost	$	68		$	59