Accrued Expenses and Other Liabilities - Accrued Expenses and Other Current Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2018	Jun. 30, 2018
Accrued expenses and other current liabilities
Payroll and payroll-related	$ 17,710	$ 21,796
Royalties and outside commissions	3,837	3,333
Professional fees	2,021	1,695
Deferred acquisition payments	500	1,700
Other	12,620	10,991
Total accrued expenses and other current liabilities	$ 36,688	$ 39,515