Net Income (Loss) Per Share (Schedule of Earnings Per Share, Basic and Diluted) (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Mar. 31, 2021	Mar. 31, 2020	Mar. 31, 2021	Mar. 31, 2020
Earnings Per Share Basic And Diluted [Line Items]
Net income (loss)	$ 3,472	$ (44,352)	$ (8,390)	$ (105,628)
Weighted-average shares used in per share calculation - basic	124,788	119,162	123,252	119,648
Weighted-average shares used in per share calculation - diluted	129,988	119,162	123,252	119,648
Net income (loss) per share - basic and diluted
Net income (loss) per share - basic	$ 0.03	$ (0.37)	$ (0.07)	$ (0.88)
Net income (loss) per share - diluted	$ 0.03	$ (0.37)	$ (0.07)	$ (0.88)
Options to purchase common stock
Earnings Per Share Basic And Diluted [Line Items]
Options to purchase common stock	549
Restricted stock units
Earnings Per Share Basic And Diluted [Line Items]
Options to purchase common stock	4,651