Pension

6 Months Ended

Jun. 30, 2020

Compensation And Retirement Disclosure [Abstract]

Pension

7. PENSION

Defined Benefit Plan

Prior to January 2020, we provided a noncontributory defined benefit pension plan covering substantially all of our Dutch employees ("Dutch Plan") who were hired prior to 2000. During 2019, there was a curtailment of the Dutch Plan for our Dutch employees whose pension benefit was based on years of service and final pay or career average pay, depending on when the employee began participating. These employees have been moved into the Dutch defined contribution plan. However, the unconditional indexation for this group of participants continues for so long as they remain in active service with the Company. There is no further contribution to fund the Dutch Plan since end of 2019.

The following table summarizes the components of net periodic pension cost under the Dutch Plan (in thousands):

	Three Months Ended						Six Months Ended
	June 30,						June 30,
	2020			2019			2020			2019
Service cost	$	—		$	189		$	—		$	381
Interest cost		168			259			336			519
Expected return on plan assets		(154	)		(229	)		(308	)		(461	)
Amortization of prior service cost		—			(25	)		—			(50	)
Amortization of actuarial loss		—			14			—			29
Net periodic pension cost	$	14		$	208		$	28		$	418