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
	Sep. 30, 2017	Sep. 30, 2016
Earnings Per Share Diluted [Line Items]
Net income (loss)	$ 4,376	$ (5,742)
Weighted-average shares used in per share - basic calculation	112,241	105,955
Weighted-average shares used in per share - diluted calculation	118,431	105,955
Net income (loss) per share:
Basic	$ 0.04	$ (0.05)
Diluted	$ 0.04	$ (0.05)
Options to purchase common stock
Earnings Per Share Diluted [Line Items]
Effect of potentially dilutive shares	1,760
Restricted Stock Units
Earnings Per Share Diluted [Line Items]
Effect of potentially dilutive shares	4,007
Employee Stock Purchase Plan shares
Earnings Per Share Diluted [Line Items]
Effect of potentially dilutive shares	423