Balance Sheet Accounts (Components of Debt) (Details) - USD ($) $ in Thousands	Sep. 30, 2017	Jun. 30, 2017
Line Of Credit Facility [Line Items]
Current portion of long-term debt	$ 17,863	$ 12,280
Less: unamortized debt issuance costs	(555)	(164)
Long-term debt, less current portion	149,729	80,422
Less: unamortized debt issuance costs	(1,473)	(846)
Total debt	167,592	92,702
Term Loan
Line Of Credit Facility [Line Items]
Current portion of long-term debt	18,418	12,444
Long-term debt, less current portion	141,202	71,268
Revolver
Line Of Credit Facility [Line Items]
Long-term debt, less current portion	$ 10,000	$ 10,000