Postretirement and Other Employee Benefits (Tables)

6 Months Ended

Dec. 31, 2021

Retirement Benefits [Abstract]

Summary of Components of Net Periodic Pension Costs for the Swiss Pension Plan

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

	Three Months Ended December 31,				Six Months Ended December 31,
	2021		2020		2021		2020
	(in thousands)
Components of net periodic cost
Service cost	$	704	$	793	$	1,411	$	1,558
Interest cost	49		38		98		75
Prior service credit	(118)		(84)		(237)		(167)
Net actuarial loss	—		62		—		123
Expected return on plan assets	(359)		(301)		(718)		(586)
Net periodic cost	$	276	$	508	$	554	$	1,003