Postretirement and Other Employee Benefits (Tables)

9 Months Ended

Mar. 31, 2018

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 March 31,						Nine Months Ended March 31,
	2018			2017			2018			2017
	(in thousands)
Components of net periodic cost
Service cost	$	650		$	729		$	1,914		$	2,211
Interest cost		91			31			267			94
Prior service credit		(23	)		(22	)		(68	)		(67	)
Net actuarial loss		56			160			165			486
Expected return on plan assets		(306	)		(218	)		(901	)		(661	)
Net periodic cost	$	468		$	680		$	1,377		$	2,063