Related Party Transactions	12 Months Ended
Related Party Transactions	Dec. 31, 2013
Related Party Transactions [Abstract]
Related Party Transactions	Note 18 - Related Party Transactions Dr. Rajiv Modi, a director of Novavax, is also the managing director of Cadila. The Company and Cadila have formed a joint venture called CPL Biologicals Private Limited, of which the Company owns 20% and Cadila owns 80%. The Company and Cadila also have entered into a master services agreement, pursuant to which Cadila may perform certain research, development and manufacturing services for the Company up to $7.5 million. A subsidiary of Cadila owns 12.5 million shares of the Company's outstanding common stock. Since entering into the master services agreement and through December 31, 2013, the Company has incurred $3.0 million under the agreement. The amount due for services performed under the master services agreement at December 31, 2013 and 2012 was $0.4 million and $0.1 million, respectively.

The entire disclosure for related party transactions. Examples of related party transactions include transactions between (a) a parent company and its subsidiary; (b) subsidiaries of a common parent; (c) and entity and its principal owners; and (d) affiliates.

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Note 18 - Related Party Transactions