Share-Based Compensation (Details) (USD $)	3 Months Ended		6 Months Ended		12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2012	Dec. 31, 2011	Jun. 30, 2012
Share-based compensation charges
Share-based compensation expense	$ 2,296,000	$ 1,947,000	$ 4,051,000	$ 4,556,000
Capitalized share-based compensation costs			500,000		400,000
Cost of revenue
Share-based compensation charges
Share-based compensation expense	319,000	437,000	566,000	995,000
Selling and marketing
Share-based compensation charges
Share-based compensation expense	327,000	151,000	547,000	380,000
Research and development
Share-based compensation charges
Share-based compensation expense	477,000	567,000	993,000	1,169,000
General and administrative
Share-based compensation charges
Share-based compensation expense	$ 1,173,000	$ 792,000	$ 1,945,000	$ 2,012,000