Balance Sheet Components (Allowance for Credit Losses) (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2019
Organization Consolidation And Presentation Of Financial Statements [Abstract]
Balance at beginning of period	$ 1,212	$ 1,054	$ 1,478
Provision for expected credit losses	409	1,289	1,407
Deductions	(635)	(1,131)	(1,831)
Balance at end of period	$ 986	$ 1,212	$ 1,054