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SPONSORED RESEARCH AND LICENSE AGREEMENTS (Details) (USD $)
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12 Months Ended | 1 Months Ended | 3 Months Ended | 12 Months Ended | 1 Months Ended | 6 Months Ended | 1 Months Ended | 1 Months Ended | 1 Months Ended | 3 Months Ended | 1 Months Ended | 3 Months Ended | |||||||||||||
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Sep. 29, 2010
Regulatory event
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Sep. 29, 2010
Product launch event
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Sep. 29, 2010
Development event
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Dec. 31, 2012
Other Agreements
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Dec. 31, 2012
Other Agreements
Regulatory event
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Dec. 31, 2012
Other Agreements
Product launch event
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Dec. 31, 2012
Other Agreements
Development event
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Dec. 31, 2012
Collaborations
item
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Jul. 31, 2012
Collaborations
AstraZeneca
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Jun. 30, 2012
Collaborations
AstraZeneca
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Dec. 31, 2012
Collaborations
AstraZeneca
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Apr. 30, 2010
Collaborations
AstraZeneca
Single unit of accounting
item
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Sep. 30, 2010
Collaborations
AstraZeneca
Single unit of accounting
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Sep. 30, 2010
Collaborations
AstraZeneca
Milestone achieved
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Sep. 29, 2010
Collaborations
AstraZeneca
Specified events
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Sep. 29, 2010
Collaborations
AstraZeneca
Specified sales levels
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Aug. 31, 2002
Collaborations
Daiichi
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Dec. 31, 2012
Collaborations
Daiichi
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Jan. 31, 2012
Collaborations
Daiichi
Milestone achieved
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Jul. 30, 2011
Collaborations
Merck Serono
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Sep. 30, 2011
Collaborations
Merck Serono
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Jul. 31, 2012
Collaborations
BerGenBio
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Aug. 31, 2011
Collaborations
BerGenBio
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Jun. 30, 2012
Collaborations
BerGenBio
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Sep. 30, 2011
Collaborations
BerGenBio
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| Collaborations | |||||||||||||||||||||||||
| Number of significant active collaborations | 1 | ||||||||||||||||||||||||
| Upfront fee received | $ 1,000,000 | $ 100,000,000 | $ 500,000 | ||||||||||||||||||||||
| Number of units of accounting | 1 | ||||||||||||||||||||||||
| Revenue recognized | 1,000,000 | 100,000,000 | 25,000,000 | 4,300,000 | 500,000 | 500,000 | |||||||||||||||||||
| Maximum amount of contingent payments receivable | 100,000,000 | 195,000,000 | 25,000,000 | 160,000,000 | 53,600,000 | 37,500,000 | 68,900,000 | 320,000,000 | 800,000,000 | ||||||||||||||||
| Collaborative payment earned | 750,000 | 500,000 | |||||||||||||||||||||||
| Cumulative amount of payments earned under collaborative arrangement | 6,500,000 | ||||||||||||||||||||||||
| Uncured breach period | 60 days | ||||||||||||||||||||||||
| Notice period for termination of agreement without cause | 180 days | ||||||||||||||||||||||||
| Notice period for termination of agreement due to change of control | 30 days | ||||||||||||||||||||||||
| Period of collaboration in research phase | 3 years | ||||||||||||||||||||||||
| Final payment received | $ 4,300,000 | ||||||||||||||||||||||||