v2.4.0.6

Subsequent Events (Details) (USD $)	12 Months Ended			1 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2011 License, Development and Commercialization Agreement With Astellas	Feb. 29, 2012 Shares issued	Dec. 31, 2011 Contract termination License, Development and Commercialization Agreement With Astellas
Information related to subsequent events
Percentage of royalties payable to Astellas			2.00%
Remaining non-cash deferred upfront license fees and milestone payments					$ 125,000,000
Future inventory cost			11,000,000
Agreement to issue stock in private placement, number of shares				88,468
Agreement to issue stock in private placement, price per share (in dollars per share)				$ 18.12
Issuance of common stock for cash in private placement to a related party	$ 13,618,000	$ 129,190,000		$ 1,600,000

X

- Definition

Represents the rate of royalty payable to the counterparty pursuant to terms of termination agreement of a collaboration agreement.

+ References

No definition available.

+ Details

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X

- Definition

Represents the total remaining non-cash, deferred upfront license fees and milestone payments, net of estimated termination obligations which the entity is eligible to receive under the collaboration arrangement.

+ References

No definition available.

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- Definition

Represents the amount of inventory payments due in first year after the balance sheet date.

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- Definition

Represents the price per share at which stock is issued to a related party in a private placement.

+ References

No definition available.

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- Definition

Number of shares issued during the period as a result of private placement to a related party.

+ References

No definition available.

+ Details

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- Definition

Value stock issued during the period as a result of private placement to a related party, net of issuance cost.

+ References

No definition available.

+ Details

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