Net (Loss) Income Per Share (Schedule of Net (Loss) Income Per Share, Basic and Diluted) (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	12 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2013
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Net (loss) income	$ (71,643)	$ (57,310)	$ 9,673
Weighted-average shares used in per share calculation - basic (in shares)	99,000	95,515	93,954
Incremental shares using the treasury stock method:
Weighted-average shares used in per share calculation - diluted (in shares)	99,000	95,515	95,044
Net (loss) income per share - basic (in dollars per share)	$ (0.72)	$ (0.60)	$ 0.10
Net (loss) income per share - diluted (in dollars per share)	$ (0.72)	$ (0.60)	$ 0.10
Weighted stock options outstanding excluded from computation of earnings per share (in shares)	7,600	4,100	6,700
Stock Options
Incremental shares using the treasury stock method:
Incremental shares	0	0	385
Unvested Restricted Awards
Incremental shares using the treasury stock method:
Incremental shares	0	0	600
Employee Stock Purchase Plan
Incremental shares using the treasury stock method:
Incremental shares	0	0	105