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Segment and Geographic Information | 12 Months Ended
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Dec. 31, 2017
Segment Reporting [Abstract] |
Segment and Geographic Information |
14. | Segment and Geographic Information
The Company has determined that the chief executive officer is the chief operating decision maker (“CODM”). The CODM reviews financial information presented for the Company’s various clinical trial programs as well as results on a consolidated basis. License, milestone and collaboration services revenues received are not allocated to various programs for purposes of determining a profit measure and resource allocation decisions are made by the CODM based primarily on consolidated results. As such, the Company has concluded that it operates as one segment. Supplemental enterprise-wide information has been presented below. Geographic Revenues Geographic revenues, which are based on the bill to region, are as follows (in thousands):
|  | Years Ended December 31, |
|  | 2017 |  |  | 2016 |  |  | 2015 |
Europe |  | $ | 108,759 |  |  | $ | 153,669 |  |  | $ | 159,123 |
Japan (related party) |  |  | 16,885 |  |  |  | 25,778 |  |  |  | 21,596 |
All other |  |  | 24 |  |  |  | 130 |  |  |  | 109 |
Total revenue |  | $ | 125,668 |  |  | $ | 179,577 |  |  | $ | 180,828 |
Geographic Long-Lived Assets Property and equipment, net by geographic location are as follows (in thousands):
|  | December 31, |
|  | 2017 |  |  | 2016 |
United States |  | $ | 107,228 |  |  | $ | 109,886 |
China |  |  | 22,248 |  |  |  | 13,771 |
Total property and equipment |  | $ | 129,476 |  |  | $ | 123,657 |
Customer Concentration Substantially all of the Company’s revenues to date have been generated from the following collaboration partners that respectively accounted for more than 10% of the Company’s total revenue and accounts receivable:
|  | Percentage of Revenue |  |  | Percentage of Accounts Receivable |
|  | Years Ended December 31, |  |  | December 31, |
|  | 2017 |  |  | 2016 |  |  | 2015 |  |  | 2017 |  |  | 2016 |
Astellas—Related party |  |  | 13 | % |  |  | 14 | % |  |  | 12 | % |  |  | 47 | % |  |  | 39 | %
AstraZeneca |  |  | 87 | % |  |  | 86 | % |  |  | 88 | % |  |  | 53 | % |  |  | 61 | %

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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://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -URI http://asc.fasb.org/topic&trid=2134510 + Details
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