Collaborative and Other Relationships	6 Months Ended
Jun. 30, 2015
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Collaborative and Other Relationships	Collaborative and Other Relationships Samsung Bioepis Joint Venture Agreement In February 2012, we entered into a joint venture agreement with Samsung BioLogics Co. Ltd. (Samsung Biologics), establishing an entity, Samsung Bioepis, to develop, manufacture and market biosimilar pharmaceuticals. Samsung Biologics contributed 280.5 billion South Korean won (approximately $250.0 million) for an 85% stake in Samsung Bioepis and we contributed approximately 49.5 billion South Korean won (approximately $45.0 million) for the remaining 15% ownership interest. Under the joint venture agreement, we have no obligation to provide any additional funding and our ownership interest may be diluted due to financings in which we do not participate. As of June 30, 2015, our ownership interest is approximately 10%, which reflects our additional contribution of 6.3 billion South Korean won (approximately $5.7 million) in the first quarter of 2015 and the effect of additional equity financings in which we did not participate. We maintain an option to purchase additional stock in Samsung Bioepis that would allow us to increase our ownership percentage up to 49.9%. The exercise of this option is within our control and is based on paying for 49.9% of the total investment made by Samsung Biologics into Samsung Bioepis in excess of what we have already contributed under the agreement plus interest. As of June 30, 2015 and December 31, 2014, the carrying value of our investment in Samsung Bioepis totaled 7.5 billion and 9.1 billion South Korean won (approximately $6.8 million and $8.6 million), respectively, which is classified as a component of investments and other assets within our condensed consolidated balance sheets. Based on our level of influence over Samsung Bioepis, we account for this investment under the equity method of accounting and we recognize our share of the results of operations related to our investment in Samsung Bioepis one quarter in arrears when the results of the entity become available, which is reflected as equity in loss of investee, net of tax within our condensed consolidated statements of income. During the three and six months ended June 30, 2015, we recognized a loss on our investment of $4.9 million and $5.7 million, respectively, as compared to $1.9 million and $9.5 million, respectively, in the prior year comparative periods. Commercial Agreement On December 17, 2013, pursuant to our rights under the joint venture agreement with Samsung Biologics, we entered into an agreement with Samsung Bioepis to commercialize anti-tumor necrosis factor (TNF) biosimilar product candidates in Europe and, in the case of one anti-TNF biosimilar candidate, Japan. Under the terms of this agreement, we have paid $46.0 million, which has been recorded as a research and development expense within our condensed consolidated statements of income as the programs they relate to have not achieved regulatory approval. Samsung Bioepis is eligible to receive an additional $75.0 million in additional milestones related to clinical development and regulatory approval of the product candidates. Upon commercialization, there will be a 50% profit share with Samsung Bioepis. Other Services Simultaneous with the formation of Samsung Bioepis, we also entered into a license agreement, a technical development services agreement and a manufacturing agreement with Samsung Bioepis. For the three and six months ended June 30, 2015, we recognized $17.2 million and $36.1 million, respectively, in other revenues in relation to these services, as compared to $12.3 million and $36.5 million, respectively, in the prior year comparative periods. For additional information related to our other significant collaboration arrangements, please read Note 20, Collaborative and Other Relationships to our consolidated financial statements included within our 2014 Form 10-K.

Collaborative and Other Relationships

Samsung Bioepis

Joint Venture Agreement

In February 2012, we entered into a joint venture agreement with Samsung BioLogics Co. Ltd. (Samsung Biologics), establishing an entity, Samsung Bioepis, to develop, manufacture and market biosimilar pharmaceuticals. Samsung Biologics contributed 280.5 billion South Korean won (approximately $250.0 million) for an 85% stake in Samsung Bioepis and we contributed approximately 49.5 billion South Korean won (approximately $45.0 million) for the remaining 15% ownership interest. Under the joint venture agreement, we have no obligation to provide any additional funding and our ownership interest may be diluted due to financings in which we do not participate. As of June 30, 2015, our ownership interest is approximately 10%, which reflects our additional contribution of 6.3 billion South Korean won (approximately $5.7 million) in the first quarter of 2015 and the effect of additional equity financings in which we did not participate. We maintain an option to purchase additional stock in Samsung Bioepis that would allow us to increase our ownership percentage up to 49.9%. The exercise of this option is within our control and is based on paying for 49.9% of the total investment made by Samsung Biologics into Samsung Bioepis in excess of what we have already contributed under the agreement plus interest.

As of June 30, 2015 and December 31, 2014, the carrying value of our investment in Samsung Bioepis totaled 7.5 billion and 9.1 billion South Korean won (approximately $6.8 million and $8.6 million), respectively, which is classified as a component of investments and other assets within our condensed consolidated balance sheets. Based on our level of influence over Samsung Bioepis, we account for this investment under the equity method of accounting and we recognize our share of the results of operations related to our investment in Samsung Bioepis one quarter in arrears when the results of the entity become available, which is reflected as equity in loss of investee, net of tax within our condensed consolidated statements of income. During the three and six months ended June 30, 2015, we recognized a loss on our investment of $4.9 million and $5.7 million, respectively, as compared to $1.9 million and $9.5 million, respectively, in the prior year comparative periods.

Commercial Agreement

On December 17, 2013, pursuant to our rights under the joint venture agreement with Samsung Biologics, we entered into an agreement with Samsung Bioepis to commercialize anti-tumor necrosis factor (TNF) biosimilar product candidates in Europe and, in the case of one anti-TNF biosimilar candidate, Japan. Under the terms of this agreement, we have paid $46.0 million, which has been recorded as a research and development expense within our condensed consolidated statements of income as the programs they relate to have not achieved regulatory approval. Samsung Bioepis is eligible to receive an additional $75.0 million in additional milestones related to clinical development and regulatory approval of the product candidates. Upon commercialization, there will be a 50% profit share with Samsung Bioepis.

Other Services

Simultaneous with the formation of Samsung Bioepis, we also entered into a license agreement, a technical development services agreement and a manufacturing agreement with Samsung Bioepis. For the three and six months ended June 30, 2015, we recognized $17.2 million and $36.1 million, respectively, in other revenues in relation to these services, as compared to $12.3 million and $36.5 million, respectively, in the prior year comparative periods.

For additional information related to our other significant collaboration arrangements, please read Note 20, Collaborative and Other Relationships to our consolidated financial statements included within our 2014 Form 10-K.