Net Income per Common Share (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended
	Sep. 30, 2012	Sep. 30, 2011
Earnings Per Share [Abstract]
Net income	$ 899	$ 8,492
Less: Undistributed earnings allocated to participating securities	(6)	(97)
Net income attributable to common shares - basic	893	8,395
Weighted-average number of common shares used to compute basic net income per common share	41,667	40,356
Basic net inome per common share	$ 0.02	$ 0.21
Earnings Per Share, Diluted [Abstract]
Less: Undistributed earnings allocated to participating securities	(6)	(91)
Net income attributable to common shares - diluted	$ 893	$ 8,401
Dilutive effect of options to purchase common stock	2,507	3,039
Weighted-average number of common shares used to compute diluted net income per common share	44,174	43,395
Diluted net income per common share	$ 0.02	$ 0.19
Anti-dilutive outstanding stock options, shares	5,338	2,877