Segment Information

3 Months Ended

Mar. 31, 2018

Segment Reporting [Abstract]

Segment Information

SEGMENT INFORMATION

We have one operating segment, which primarily focuses on the discovery, development and commercialization of innovative medicines in areas of unmet medical need. Therefore, our results of operations are reported on a consolidated basis consistent with internal management reporting reviewed by our chief operating decision maker, who is our chief executive officer.

See Note 2, Revenues, for a summary of disaggregated revenues by product and geographic region.

The following table summarizes revenues from each of our customers who individually accounted for 10% or more of our total revenues (as a percentage of total revenues):

	Three Months Ended
	March 31,
	2018		2017
AmerisourceBergen Corp.	21	%	20	%
Cardinal Health, Inc.	21	%	18	%
McKesson Corp.	20	%	20	%