Net Income (Loss) per Common Share (Details) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2011	Dec. 31, 2010	Jun. 30, 2011	Jun. 30, 2010
Net Income (Loss) per Common Share [Abstract]
Net income (loss)	$ 3,836	$ (10,269)	$ (7,900)	$ (25,737)
Weighted average shares outstanding (in shares)	93,902,000	93,252,000	93,983,000	92,968,000
Dilutive impact from:
Share-based payment awards (in shares)	2,365,000	0	0	0
Warrants (in shares)	0	0	0	0
Dilutive weighted average shares outstanding (in shares)	96,267,000	93,252,000	93,983,000	92,968,000
Income (loss) per share
Basic (in dollars per share)	$ 0.04	$ (0.11)	$ (0.08)	$ (0.28)
Dilutive (in dollars per share)	$ 0.04	$ (0.11)	$ (0.08)	$ (0.28)
Warrants [Abstract]
Number of securities called by warrants (in shares)						7,267,286
Number of warrants exercised prior to fiscal 2011 (in shares)						6,636,646
Common stock issued upon exercise of warrants prior to fiscal 2011 (in shares)						4,869,539
Number of warrants exercised (in shares)				630,640
Common stock issued upon exercise of warrants (in shares)				424,753
Warrants outstanding (in shares)	0		0		0
Employee Equity Awards [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from computation of earnings per share (in shares)	791,000	8,020,000	7,010,000	8,221,000