Collaborative Arrangements and Acquisitions - Janssen Pharmaceuticals, Inc. (Details) $ in Millions	12 Months Ended
Dec. 31, 2014 USD ($)
Janssen Pharmaceuticals, Inc.
Collaborative Arrangements and Non-collaborative Arrangement Transactions [Line Items]
Collaborative arrangement, up-front payment	$ 60.0

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Balance Type:	na
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