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Retirement Plans (Tables)

3 Months Ended

Mar. 31, 2019

Defined Benefit Pension Plans

Net Periodic Pension and Postretirement Benefit Costs

For the three months ended March 31, 2019 and April 1, 2018, Teradyne’s net periodic pension cost was comprised of the following:

		For the Three Months Ended
		March 31, 2019								April 1, 2018
		United States				Foreign				United States				Foreign
		(in thousands)
Service cost		$	405			$	188			$	571			$	213
Interest cost			1,795				173				2,997				186
Expected return on plan assets			(1,511	)			(7	)			(3,369	)			(5	)
Amortization of prior service cost			—				—				14				—
Total net periodic pension cost		$	689			$	354			$	213			$	394

Postretirement Benefit Plans

Net Periodic Pension and Postretirement Benefit Costs

For the three months ended March 31, 2019 and April 1, 2018, Teradyne’s net periodic postretirement benefit cost was comprised of the following:

		For the Three Months Ended
		March 31, 2019				April 1, 2018
		(in thousands)
Service cost		$	9			$	9
Interest cost			85				50
Amortization of prior service credit			(48	)			(93	)
Special termination benefits			—				1,626
Total net periodic postretirement benefit cost		$	46			$	1,592

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- Definition

Tabular disclosure of the components of net benefit costs for pension plans and/or other employee benefit plans including service cost, interest cost, expected return on plan assets, gain (loss), prior service cost or credit, transition asset or obligation, and gain (loss) recognized due to settlements or curtailments.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (h)
-URI http://asc.fasb.org/extlink&oid=108410482&loc=d3e1928-114920

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