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Segment and Geographic Information (Tables) | 12 Months Ended
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Dec. 31, 2020
Segment Reporting [Abstract] |
Schedule of Revenue by Geographic Area | Geographic revenues, which are based on the bill-to region, are as follows (in thousands):
|  | Years Ended December 31, |
|  | 2020 |  |  | 2019 |  |  | 2018 |
Europe |  | $ | 67,161 |  |  | $ | 132,400 |  |  | $ | 112,916 |
Japan |  |  | 36,660 |  |  |  | 122,475 |  |  |  | 100,002 |
China |  |  | 72,498 |  |  |  | 1,700 |  |  |  | — |
All other |  |  | — |  |  |  | 2 |  |  |  | 40 |
Total revenue |  | $ | 176,319 |  |  | $ | 256,577 |  |  | $ | 212,958 |
Schedule of Inventory by Geographic Area | Inventory by geographic location are as follows (in thousands):
|  | December 31, |
|  | 2020 |  |  | 2019 |
United States |  | $ | 4,715 |  |  | $ | — |
China |  |  | 11,815 |  |  |  | 6,887 |
Total inventory |  | $ | 16,530 |  |  | $ | 6,887 |
Schedule of Long Lived Assets by Geographic Area | Property and equipment, net by geographic location are as follows (in thousands):
|  | December 31, |
|  | 2020 |  |  | 2019 |
United States |  | $ | 20,673 |  |  | $ | 27,325 |
China |  |  | 12,974 |  |  |  | 15,418 |
Total property and equipment |  | $ | 33,647 |  |  | $ | 42,743 |
Summary of Finance and Operating Lease Right of Use Assets by Geographical Location | Finance lease right-of-use assets and operating lease right-of-use assets, net by geographic location are as follows (in thousands):
|  | December 31, |
|  | 2020 |  |  | 2019 |
United States |  | $ | 29,551 |  |  | $ | 39,237 |
China |  |  | 55 |  |  |  | 365 |
Total finance lease right-of-use assets |  | $ | 29,606 |  |  | $ | 39,602 |
United States |  | $ | 47 |  |  | $ | 75 |
China |  |  | 1,996 |  |  |  | 1,856 |
Total operating lease right-of-use assets |  | $ | 2,043 |  |  | $ | 1,931 |
Schedule of Customer Concentration by Collaboration Partners | The Company’s revenues to date have been generated from the following collaboration partners that respectively accounted for 10% or more of the Company’s total revenue and accounts receivable:
|  | Percentage of Revenue |  |  | Percentage of Accounts Receivable |
|  | Years Ended December 31, |  |  | December 31, |
|  | 2020 |  |  | 2019 |  |  | 2018 |  |  | 2020 |  |  | 2019 |
Astellas—Related party |  |  | 21 | % |  |  | 48 | % |  |  | 47 | % |  |  | 10 | % |  |  | 17 | %
AstraZeneca |  |  | 37 | % |  |  | 52 | % |  |  | 53 | % |  |  | 26 | % |  |  | 81 | %

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- Definition Tabular disclosure of long-lived assets, excluding financial instruments, long-term customer relationships of a financial institution, mortgage rights, deferred policy acquisition costs, and deferred tax assets, by geographic areas located in the entity's country of domicile and foreign countries in which the entity holds assets. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 41 -Subparagraph b -URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e9038-108599 + Details
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- Definition Tabular disclosure of the extent of the entity's reliance on its major customers, if revenues from transactions with a single external customer amount to 10 percent or more of entity revenues, including the disclosure of that fact, the total amount of revenues from each such customer, and the identity of the reportable segment or segments reporting the revenues. The entity need not disclose the identity of a major customer or the amount of revenues that each segment reports from that customer. For these purposes, a group of companies known to the entity to be under common control is considered a single customer, and the federal government, a state government, a local government such as a county or municipality, or a foreign government is each considered a single customer. + References No definition available. + Details
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