XML 124 R30.htm IDEA: XBRL DOCUMENT
v3.20.4

Summary of Significant Accounting Policies (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2020
Accounting Policies [Abstract] |
Reconciliation of Cash and Cash Equivalents | The following table provides a reconciliation of cash, cash equivalents and restricted cash in the consolidated balance sheets that sum to the total of the same such amounts shown in the consolidated statements of cash flows (in thousands):
|  | December 31,
|  | 2020 |  | 2019
Cash and cash equivalents |  | $ | 2,623,850 |  |  | $ | 235,876 |
Restricted cash |  | 1,032 |  |  | 1,032 |
Restricted cash, non-current |  | 11,053 |  |  | 10,791 |
Total cash, cash equivalents and restricted cash shown in the consolidated statements of cash flows |  | $ | 2,635,935 |  |  | $ | 247,699 |
Reconciliation of Restricted Cash | The following table provides a reconciliation of cash, cash equivalents and restricted cash in the consolidated balance sheets that sum to the total of the same such amounts shown in the consolidated statements of cash flows (in thousands):
|  | December 31,
|  | 2020 |  | 2019
Cash and cash equivalents |  | $ | 2,623,850 |  |  | $ | 235,876 |
Restricted cash |  | 1,032 |  |  | 1,032 |
Restricted cash, non-current |  | 11,053 |  |  | 10,791 |
Total cash, cash equivalents and restricted cash shown in the consolidated statements of cash flows |  | $ | 2,635,935 |  |  | $ | 247,699 |
Entities that Accounted for More than 10% of Total Revenue and Accounts Receivable | A significant portion of our revenue to date has been generated from the following entities that accounted for more than 10% of total revenue and accounts receivable for the periods presented:
| Percentage of Revenue Years Ended December 31, |  | Percentage of Accounts Receivable December 31,
| 2020 |  | 2019 |  | 2018 |  | 2020 |  | 2019
Merck | * |  | 61 | % |  | 49 | % |  | * |  | 13 | %
BARDA | 65 | % |  | 13 | % |  | * |  | 22 | % |  | 54 | %
Vertex | * |  | 10 | % |  | * |  | * |  | 17 | %
AstraZeneca | * |  | * |  | 34 | % |  | * |  | *
U.S. Government (excluding BARDA) | 24 | % |  | * |  | * |  | * |  | *
European Commission | * |  | * |  | * |  | 28 | % |  | *
United Kingdom Government | * |  | * |  | * |  | 11 | % |  | *
South Korea Government | * |  | * |  | * |  | 24 | % |  | *
________ * - Represents an amount of less than 10%
Estimated Useful Lives of Property and Equipment | The estimated useful lives of property and equipment are described below:
|  | Estimated Useful Life
Laboratory equipment |  | 5 years
Leasehold improvements |  | Lesser of estimated useful life of improvement or remaining life of related lease
Computer equipment and software |  | 3 years
Internally developed software |  | 3 years
Furniture, fixtures and other |  | 5 years
Right of use asset, financing |  | Lease term
Property and equipment, net as of December 31, 2020 and 2019 consists of the following (in thousands):
|  | December 31,
|  | 2020 |  | 2019 |  |
Laboratory equipment |  | $ | 120,714 |  |  | $ | 108,257 |  |  |
Leasehold improvements |  | 179,901 |  |  | 152,426 |  |  |
Furniture, fixtures and other |  | 4,662 |  |  | 3,316 |  |  |
Computer equipment and software |  | 13,398 |  |  | 11,985 |  |  |
Internally developed software |  | 7,020 |  |  | 7,020 |  |  |
Right-of-use asset, financing |  | 56,348 |  |  | 9,853 |  |  |
Construction in progress |  | 34,507 |  |  | 3,222 |  |  |
|  | 416,550 |  |  | 296,079 |  |  |
Less: Accumulated depreciation |  | (119,661) |  |  | (94,584) |  |  |
Property and equipment, net |  | $ | 296,889 |  |  | $ | 201,495 |  |  |
Components of Accumulated Other Comprehensive Loss | The components of accumulated other comprehensive gain (loss) for the years ended December 31, 2020 and 2019 are as follows (in thousands):
| Unrealized Gain on Available-for-Sale Debt Securities
Accumulated other comprehensive loss, balance at December 31, 2018 | $ | (1,320) |
Other comprehensive income | 3,124 |
Accumulated other comprehensive gain, balance at December 31, 2019 | 1,804 |
Other comprehensive income | 1,200 |
Accumulated other comprehensive gain, balance at December 31, 2020 | $ | 3,004 |

X
- References No definition available. + Details
Name: | us-gaap_AccountingPoliciesAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of physical assets used in the normal conduct of business and not intended for resale. Includes, but is not limited to, balances by class of assets, depreciation and depletion expense and method used, including composite depreciation, and accumulated deprecation. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(13)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229 + Details
Name: | us-gaap_PropertyPlantAndEquipmentTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the components of accumulated other comprehensive income (loss). + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 830 -SubTopic 30 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6450520&loc=d3e32583-110901 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 14A -URI http://asc.fasb.org/extlink&oid=121641772&loc=SL7669686-108580 Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 830 -SubTopic 30 -Section 45 -Paragraph 20 -URI http://asc.fasb.org/extlink&oid=118261656&loc=d3e32211-110900 + Details
Name: | us-gaap_ScheduleOfAccumulatedOtherComprehensiveIncomeLossTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the components of cash and cash equivalents. + References No definition available. + Details
Name: | us-gaap_ScheduleOfCashAndCashEquivalentsTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of cash and cash equivalents restricted as to withdrawal or usage. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(1)(a)) -URI http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=121583591&loc=SL98516268-108586 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(a)(2)) -URI http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(1)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
Name: | us-gaap_ScheduleOfRestrictedCashAndCashEquivalentsTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the nature of a concentration, a benchmark to which it is compared, and the percentage that the risk is to the benchmark. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 21 -URI http://asc.fasb.org/extlink&oid=121572278&loc=d3e13537-108611 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 20 -URI http://asc.fasb.org/extlink&oid=121572278&loc=d3e13531-108611 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 275 -SubTopic 10 -Section 50 -Paragraph 20 -URI http://asc.fasb.org/extlink&oid=99393423&loc=d3e6404-108592 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 275 -SubTopic 10 -Section 50 -Paragraph 16 -URI http://asc.fasb.org/extlink&oid=99393423&loc=d3e6327-108592 Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 275 -SubTopic 10 -Section 50 -Paragraph 18 -URI http://asc.fasb.org/extlink&oid=99393423&loc=d3e6351-108592 Reference 6: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 275 -SubTopic 10 -Section 50 -Paragraph 21 -URI http://asc.fasb.org/extlink&oid=99393423&loc=d3e6442-108592 + Details
Name: | us-gaap_SchedulesOfConcentrationOfRiskByRiskFactorTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration