Pension (Tables)

6 Months Ended

Jun. 30, 2021

Compensation And Retirement Disclosure [Abstract]

Schedule of Net Benefit Costs

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,
	2021			2020			2021			2020
Interest cost	$	82		$	168		$	164		$	336
Expected return on plan assets		(78	)		(154	)		(156	)		(308	)
Net periodic pension cost	$	4		$	14		$	8		$	28