Balance Sheet Accounts (Summary of Long-term Liabilities) (Details) - USD ($) $ in Thousands	Dec. 31, 2018	Jun. 30, 2018
Organization Consolidation And Presentation Of Financial Statements [Abstract]
Acquisition related deferred payments, less current portion	$ 11,442	$ 13,251
Contingent consideration obligations, less current portion	4,095	4,898
Other contractual obligations, less current portion	29,647	31,200
Other	15,527	9,751
Total other long-term liabilities	$ 60,711	$ 59,100