Postretirement and Other Employee Benefits (Tables)

3 Months Ended

Sep. 30, 2019

Retirement Benefits [Abstract]

Components of Net Periodic Pension Costs for the Swiss Pension Plan

Net periodic pension costs for the Swiss pension plan included the following components:

	Three Months Ended September 30,
	2019			2018
	(in thousands)
Components of net periodic cost
Service cost	$	724		$	645
Interest cost	56			116
Prior service credit	(77		)	(78		)
Net actuarial loss	118			56
Expected return on plan assets	(307		)	(353		)
Net periodic cost	$	514		$	386