Leases (Summary of Activity and Other Information Relating to Operating Leases) (Details) $ in Thousands	3 Months Ended
	Sep. 30, 2019 USD ($)
Leases [Abstract]
Operating lease costs	$ 5,143
Cash paid for amounts included in the measurement of operating liabilities	5,507
ROU assets obtained for new lease obligations	64
ROU assets obtained from Aerohive business combination	$ 6,336
Weighted average remaining lease term (in years)	4 years 9 months 18 days
Weighted Average Discount Rate	4.50%