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Commitments and Contingencies
9 Months Ended
Sep. 30, 2012
Commitments and Contingencies [Abstract]  
Commitments and Contingencies
9. Commitments and Contingencies

The Company accrues estimated liabilities for loss contingencies when it is probable that a liability has been incurred and the amount of the claim assessment or damages can be reasonably estimated. Synageva expenses legal fees and IP-related and patent costs as they are incurred.