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Revenue Recognition (Details) - USD ($) $ in Thousands | 1 Months Ended | 3 Months Ended | 9 Months Ended | 12 Months Ended |  |  |
--- | --- | --- | --- | --- | --- | --- | ---
Jul. 31, 2021 | Feb. 28, 2019 | Sep. 30, 2021 | Mar. 31, 2021 | Sep. 30, 2020 | Jun. 30, 2019 | Sep. 30, 2021 | Sep. 30, 2020 | Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2020 | Sep. 30, 2019 | Aug. 31, 2019
Refunds of revenues previously deferred |  |  |  |  |  |  | $ 10,000 |  |  |  |  |  |
Deferred revenue, Long-term |  |  | $ 22,706 |  |  |  | 22,706 |  |  |  | $ 22,805 |  |
Other assets |  |  | 13,202 |  |  |  | 13,202 |  |  |  | 14,743 |  |
Deferred revenue |  |  | 32,373 |  |  |  | 32,373 |  |  |  | 72,930 |  |
Deferred revenue, current portion |  |  | 9,667 |  |  |  | 9,667 |  |  |  | 50,125 |  |
Total revenues |  |  | 158,116 |  | $ 98,143 |  | 452,458 | $ 278,627 |  |  |  |  |
Deferred revenue, long-term portion |  |  | 22,706 |  |  |  | 22,706 |  |  |  | $ 22,805 |  |
Revenue recognized during the period that was included in deferred revenues at the beginning of the period |  |  |  |  |  |  | 32,864 |  |  |  |  |  |
Product |  |  |  |  |  |  |  |  |  |  |  |  |
Revenue recognized |  |  | 1,600 |  | 1,100 |  | 4,600 | 2,700 |  |  |  |  |
Cost of revenues |  |  | 76,838 |  | 46,873 |  | 211,387 | 131,124 |  |  |  |  |
Total revenues |  |  | 150,651 |  | 93,286 |  | $ 406,265 | 260,746 |  |  |  |  |
Product | Minimum |  |  |  |  |  |  |  |  |  |  |  |  |
Billing collection period (in months) |  |  |  |  |  |  | 9 months |  |  |  |  |  |
Product | Maximum |  |  |  |  |  |  |  |  |  |  |  |  |
Billing collection period (in months) |  |  |  |  |  |  | 12 months |  |  |  |  |  |
Licensing and other |  |  |  |  |  |  |  |  |  |  |  |  |
Cost of revenues |  |  | 4,533 |  | 4,948 |  | $ 12,909 | 12,614 |  |  |  |  |
Total revenues |  |  | 7,465 |  | $ 4,857 |  | 46,193 | $ 17,881 |  |  |  |  |
Genetic testing services |  |  |  |  |  |  |  |  |  |  |  |  |
Revenue recognized during the period that was included in deferred revenues at the beginning of the period |  |  |  |  |  |  | $ 300 |  |  |  |  |  |
Qiagen |  |  |  |  |  |  |  |  |  |  |  |  |
Proceeds from license agreement |  |  |  |  |  |  |  |  |  | $ 5,000 |  |  |
Agreement term |  |  |  |  |  |  | 10 years |  |  |  |  |  |
Revenue, remaining performance obligation |  |  |  |  |  |  |  |  |  | 40,000 |  |  |
Revenue recognized during the period that was included in deferred revenues at the beginning of the period |  |  |  |  |  |  | $ 28,600 |  |  |  |  |  |
Qiagen | Volume, regulatory and commercial milestones |  |  |  |  |  |  |  |  |  |  |  |  |
Revenue, remaining performance obligation |  |  |  |  |  |  |  |  |  | $ 10,000 |  |  |
Qiagen | Other licensing and other revenue |  |  |  |  |  |  |  |  |  |  |  |  |
Refunds of revenues previously deferred |  |  |  | $ 10,000 |  |  |  |  |  |  |  |  |
Deferred revenue |  |  |  | $ 28,600 |  |  |  |  |  |  |  |  |
Laboratory distribution partners | Product | Minimum |  |  |  |  |  |  |  |  |  |  |  |  |
Billing collection period (in months) |  |  |  |  |  |  | 2 months |  |  |  |  |  |
Laboratory distribution partners | Product | Maximum |  |  |  |  |  |  |  |  |  |  |  |  |
Billing collection period (in months) |  |  |  |  |  |  | 3 months |  |  |  |  |  |
BGI Genomics |  |  |  |  |  |  |  |  |  |  |  |  |
Proceeds from license agreement |  | $ 50,000 |  |  |  | $ 35,600 |  |  |  |  |  |  |
Receivable |  |  |  |  |  | $ 2,500 |  |  |  |  |  |  |
Agreement term |  | 10 years |  |  |  |  |  |  |  |  |  |  |
Deferred revenue, current portion |  |  | 3,500 |  |  |  | $ 3,500 |  |  |  |  |  |
BGI Genomics | Sequencing services |  |  |  |  |  |  |  |  |  |  |  |  |
Other assets |  |  |  |  |  |  |  |  |  |  |  | $ 6,000 |
BGI Genomics | Sequencing products |  |  |  |  |  |  |  |  |  |  |  |  |
Other assets |  |  |  |  |  |  |  |  |  |  |  | 4,000 |
BGI Genomics | Sequencing products and services |  |  |  |  |  |  |  |  |  |  |  |  |
Other assets |  |  |  |  |  |  |  |  |  |  |  | $ 10,000 |
Foundation Medicine ("FMI") |  |  |  |  |  |  |  |  |  |  |  |  |
Proceeds from license agreement |  |  |  |  |  |  |  |  | $ 16,300 |  |  |  |
Deferred revenue, current portion |  |  | 3,700 |  |  |  | 3,700 |  |  |  |  |  |
Foundation Medicine ("FMI") | Milestone payments |  |  |  |  |  |  |  |  |  |  |  |  |
Proceeds from license agreement | $ 1,000 |  |  |  |  |  |  |  |  |  |  |  |
Deferred revenue, current portion |  |  | $ 1,000 |  |  |  | 1,000 |  |  |  |  |  |
Foundation Medicine ("FMI") | Upfront licensing fees and prepaid revenues |  |  |  |  |  |  |  |  |  |  |  |  |
Initial transaction price |  |  |  |  |  |  |  |  |  |  |  |  | $ 13,300
Foundation Medicine ("FMI") | Developmental, regulatory, and commercial milestones |  |  |  |  |  |  |  |  |  |  |  |  |
Initial transaction price |  |  |  |  |  |  |  |  |  |  |  |  | $ 32,000
Foundation Medicine ("FMI") | Developmental performance milestones |  |  |  |  |  |  |  |  |  |  |  |  |
Proceeds from license agreement |  |  |  |  |  |  |  |  | 3,000 |  |  |  |
Foundation Medicine ("FMI") | Licensing fees and prepaid revenue |  |  |  |  |  |  |  |  |  |  |  |  |
Proceeds from license agreement |  |  |  |  |  |  |  |  | $ 13,300 |  |  |  |
BGI and FMI | Genetic testing services |  |  |  |  |  |  |  |  |  |  |  |  |
Revenue recognized during the period that was included in deferred revenues at the beginning of the period |  |  |  |  |  |  | $ 4,000 |  |  |  |  |  |

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