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Related Party Transactions (Narrative) (Detail) (Pfizer, USD $) In Millions, unless otherwise specified	12 Months Ended
	Jun. 30, 2011	Jun. 30, 2010	Jun. 30, 2012
Pfizer
Related Party Transaction [Line Items]
Company's owned outstanding shares			9.00%
Received research and development program payments	$ 2.0	$ 2.0
Upfront license fee	$ 2.3

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Received Research And Development Program Payments

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The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

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Cash received from licensees for license fees during the current period.

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-Name Accounting Standards Codification

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