Defined Benefit Pension Obligation - Additional Information (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2018
Defined Benefit Pension Obligation
Actuarial gain	$ 600
Defined benefit pension plan
Defined Benefit Pension Obligation
Actuarial gain	615	$ (742)
Employer contributions	1,327	$ 1,373	$ 1,300
Expected total contributions to defined benefit pension plan for fiscal year 2021	$ 1,100
Defined benefit pension plan | BVG
Plan Assets
Guaranteed interest rate for mandatory retirement savings (as a percent)	1.00%
Long-term other liabilities
Defined Benefit Pension Obligation
Unfunded liability	$ 4,500