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Property and Equipment (Tables) | 12 Months Ended
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Dec. 31, 2020
Property, Plant and Equipment [Abstract] |
Schedule of Property and Equipment, Net | 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 |  |  |

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- 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
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