Commitments and Contingencies (Narrative) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended		12 Months Ended
	Mar. 31, 2019	Mar. 31, 2018	Mar. 31, 2019	Mar. 31, 2018	Jun. 30, 2019	Jun. 30, 2018
Other Commitments [Line Items]
Actual cash expenditures	$ 5,197	$ 2,011	$ 10,977	$ 5,307
Network1 [Member]
Other Commitments [Line Items]
Cash held in escrow	$ 6,400		$ 6,400			$ 24,100
Scenario, Forecast [Member] | Minimum [Member]
Other Commitments [Line Items]
Actual cash expenditures					$ 10,000
Scenario, Forecast [Member] | Maximum [Member]
Other Commitments [Line Items]
Actual cash expenditures					$ 12,000