Accrued Expenses (Details) - USD ($) $ in Thousands	Jun. 30, 2020	Jun. 30, 2019
Components of accrued expenses
Accrued payroll and personnel costs	$ 53,284	$ 39,095
Operating lease liabilities	$ 8,083	$ 1,482
Operating Lease, Liability, Current, Statement of Financial Position [Extensible List]	Total accrued expenses	Total accrued expenses
Deferred revenue	$ 8,777	$ 5,572
Other	9,737	11,476
Total accrued expenses	$ 79,881	$ 57,625