Postretirement and Other Employee Benefits - Additional Information (Detail) $ in Thousands	12 Months Ended
	Jun. 30, 2021 USD ($)	Jun. 30, 2020 USD ($) employee	Jun. 30, 2019 USD ($)	Jun. 30, 2018 USD ($)	Jun. 30, 2014
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Pension plan contribution		$ 1,899	$ 1,870
Actuarial (gain) loss		(2,374)	4,124
Net actuarial loss		1,500
Net prior service credit		$ 300
Projected benefit obligation percentage		10.00%
Fair value of plan assets		$ 34,316	37,306	$ 36,929
Forecast
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Net actuarial loss	$ 200
Net prior service credit	$ 300
Israel Severance Pay | Other liabilities
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Severance liability		$ 1,300
Maximum
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Decrease in pension benefit conversion rate				6.80%	7.20%
Decrease in pension benefit conversion rate amendment				6.20%	6.80%
401 (k)
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Percentage of eligible compensation by employees		60.00%
Percentage of employee's annual compensation contribution		50.00%
Percentage of participant's contribution to the plan		5.00%
Expenses charged		$ 2,700	2,400	$ 2,200
Group Personal Pension Plan
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Percentage of employee's annual compensation contribution		4.00%
Employee's annual compensation minimum percentage		1.00%
Expenses charged		$ 1,500	2,000	1,800
Pension plan contribution		$ 1,900	1,700	1,500
Israel Pension
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Percentage of employee's annual compensation contribution		6.50%
Expenses charged		$ 600	500	400
Swiss Pension Fund Foundation
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Expenses charged		$ 3,100	2,100	$ 1,800
Number of employees covered under pension plan | employee		126
Employees covered under pension plan, percent		6.00%
Actuarial (gain) loss		$ 1,000	$ 600
Fair value of plan assets		34,300
Employers' contribution to pension plan		1,800
Sterci Pension Plan
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Accumulated benefit obligation		$ 50,800