Net Income (Loss) Per Share (Schedule of Earnings Per Share, Basic and Diluted) (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	12 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2019
Earnings Per Share Diluted [Line Items]
Net income (loss)	$ 1,936	$ (126,845)	$ (25,853)
Weighted-average shares used in per share calculation - basic	124,019	119,814	117,954
Weighted-average shares used in per share calculation - diluted	127,669	119,814	117,954
Net income (loss) per share - basic and diluted
Net income (loss) per share - basic	$ 0.02	$ (1.06)	$ (0.22)
Net income (loss) per share - diluted	$ 0.02	$ (1.06)	$ (0.22)
Options to purchase common stock
Earnings Per Share Diluted [Line Items]
Options to purchase common stock	542
Restricted stock units
Earnings Per Share Diluted [Line Items]
Options to purchase common stock	3,047
Employee Stock Purchase Plan shares
Earnings Per Share Diluted [Line Items]
Options to purchase common stock	61