Postretirement and Other Employee Benefits - Components of Net Periodic Pension Costs for the Swiss Pension Plan (Details) - Foreign Plan - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2021	Dec. 31, 2020
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	0	62	0	123
Expected return on plan assets	(359)	(301)	(718)	(586)
Net periodic cost	$ 276	$ 508	$ 554	$ 1,003