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Significant Accounting Policies (Tables) | 9 Months Ended
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Sep. 30, 2021
Accounting Policies [Abstract] |
Schedule of Concentrations of Risk Percentage | For each significant customer, revenue as a percentage of total revenue for the periods presented and accounts receivable, net as a percentage of total accounts receivable, net as of the dates presented were as follows:
|  | Revenue |  | Accounts Receivable, Net |
|  | Three Months Ended September 30, |  | Nine Months Ended September 30, |  | September 30, |  |  | December 31, |
|  | 2021 |  | 2020 |  | 2021 |  | 2020 |  | 2021 |  |  | 2020 |
Customer A |  | *% |  | *% |  | *% |  | *% |  |  | 16.1 | % |  |  | 19.1 | %
Customer B |  | * |  | * |  | * |  | * |  | * |  |  | 12.2 |
Customer C |  | * |  | 10.3 |  | * |  | * |  | * |  |  | * |
Customer D |  | * |  | * |  | * |  | * |  | 14.8 |  |  | * |
Genentech, Inc. and Roche Group |  | 39.8 |  | 48.1 |  | 42.6 |  | 55.1 |  | * |  |  | * |
* less than 10% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |

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