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Business Combinations - Additional Information (Details) $ in Thousands |  |  | 12 Months Ended |  |
--- | --- | --- | --- | --- | ---
Oct. 31, 2019 USD ($) | Jun. 30, 2018 USD ($) Installment shares | Dec. 31, 2020 USD ($) | Dec. 31, 2019 USD ($) | Dec. 31, 2018 USD ($)
Business Acquisition [Line Items] |  |  |  |  |
Goodwill |  |  | $ 15,031 | $ 15,031 | $ 14,204
Oncimmune Limited |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |
Total consideration amount | $ 1,206 |  |  |  |
Business acquisition description |  |  | quarterly installments commencing 30 days following the closing of the transaction. |  |
Cash | 1,206 |  | $ 1,200 |  |
Goodwill | 827 |  |  |  |
Integrated Diagnostics, Inc |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |
Total consideration amount |  | $ 27,600 |  |  |
Business acquisition description |  |  | requires additional consideration to be paid by the Company to Indi upon attainment of a three-consecutive month |  |
Cash |  | 8,000 |  |  |
Goodwill |  | 14,200 |  |  |
Contingent consideration estimated fair value |  | 19,600 |  |  |
Business acquisition contingent consideration gross margin target |  | $ 2,000 |  |  |
Business acquisition contingent consideration gross margin target period |  | 7 years |  |  |
Integrated Diagnostics, Inc | Common Stock |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |
Business acquisition description |  |  | If Indi elects to not exercise its option, the Company has 12 months to repurchase the common stock in two equal and consecutive quarterly cash installments totaling $37.0 million. |  |
Contingent consideration shares | shares |  | 2,520,108 |  |  |
Contingent consideration number of installments | Installment |  | 8 |  |  |
Contingent consideration arrangements, common shares, redemption amount |  | $ 37,000 |  |  |
Integrated Diagnostics, Inc | Common Stock | Repurchase |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |
Contingent consideration number of installments | Installment |  | 2 |  |  |
Contingent consideration cash payment |  | $ 37,000 |  |  |
License Rights | Oncimmune Limited | United States |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |
Payments to acquire license rights | $ 9,000 |  |  |  |

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