Goodwill	3 Months Ended
Mar. 31, 2015
Goodwill
Goodwill	Note 5. Goodwill In connection with the acquisition of Callidus as discussed in “—Note 4. Acquisition of Callidus Biopharma, Inc.”, the Company recognized goodwill of $11.6 million. Goodwill is assessed annually for impairment on October 1 and whenever events or circumstances indicate that the carrying amount of an asset may not be recoverable. If it is determined that the full carrying amount of an asset is not recoverable, an impairment loss is recorded in the amount by which the carrying amount of the asset exceeds its fair value. During the 2014 impairment assessment, it was determined that the goodwill had not been impaired and there were no changes to the goodwill balance in 2014. For the three months ended March 31, 2015, there were no indicators of impairment and the goodwill balance remained at $11.6 million.

Note 5. Goodwill

In connection with the acquisition of Callidus as discussed in “—Note 4. Acquisition of Callidus Biopharma, Inc.”, the Company recognized goodwill of $11.6 million. Goodwill is assessed annually for impairment on October 1 and whenever events or circumstances indicate that the carrying amount of an asset may not be recoverable. If it is determined that the full carrying amount of an asset is not recoverable, an impairment loss is recorded in the amount by which the carrying amount of the asset exceeds its fair value. During the 2014 impairment assessment, it was determined that the goodwill had not been impaired and there were no changes to the goodwill balance in 2014. For the three months ended March 31, 2015, there were no indicators of impairment and the goodwill balance remained at $11.6 million.