Net (Loss) Income Per Share (Schedule of Net (Loss) Income Per Share, Basic and Diluted) (Details) (USD $) In Thousands, except Share data, unless otherwise specified	12 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2012
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Net (loss) income	$ (57,310)	$ 9,673	$ 15,872
Weighted-average shares used in per share calculation - basic (in shares)	95,515,000	93,954,000	93,451,000
Incremental shares using the treasury stock method:
Weighted-average shares used in per share calculation - diluted (in shares)	95,515,000	95,044,000	94,490,000
Net (loss) income per share - basic (in dollars per share)	$ (0.60)	$ 0.10	$ 0.17
Net (loss) income per share - diluted (in dollars per share)	$ (0.60)	$ 0.10	$ 0.17
Weighted stock options outstanding excluded from computation of earnings per share (in shares)	4,100,000	6,700,000	8,300,000
Stock Options
Incremental shares using the treasury stock method:
Incremental shares	0	385,000	372,000
Unvested Restricted Awards
Incremental shares using the treasury stock method:
Incremental shares	0	600,000	554,000
Employee Stock Purchase Plan
Incremental shares using the treasury stock method:
Incremental shares	0	105,000	113,000