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Segment Information | 6 Months Ended
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Jun. 30, 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 |  | Six Months Ended
|  | June 30, |  | June 30,
|  | 2018 |  | 2017 |  | 2018 |  | 2017
AmerisourceBergen Corp. |  | 20 | % |  | 20 | % |  | 20 | % |  | 20 | %
Cardinal Health, Inc. |  | 20 | % |  | 17 | % |  | 20 | % |  | 18 | %
McKesson Corp. |  | 21 | % |  | 23 | % |  | 21 | % |  | 22 | %

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- Definition The entire disclosure for reporting segments including data and tables. Reportable segments include those that meet any of the following quantitative thresholds a) it's reported revenue, including sales to external customers and intersegment sales or transfers is 10 percent or more of the combined revenue, internal and external, of all operating segments b) the absolute amount of its reported profit or loss is 10 percent or more of the greater, in absolute amount of 1) the combined reported profit of all operating segments that did not report a loss or 2) the combined reported loss of all operating segments that did report a loss c) its assets are 10 percent or more of the combined assets of all operating segments. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -URI http://asc.fasb.org/topic&trid=2134510 + Details
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