Collaboration and Other Agreements (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2010
License and milestone revenue	$ 81,990	$ 8,233	$ 9,307
Janssen
License and milestone revenue	74,622
Servier
License and milestone revenue	7,157	8,228	9,307
Other Entities
License and milestone revenue	$ 211	$ 5