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Property and Equipment | 12 Months Ended
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Dec. 31, 2022
Property, Plant and Equipment [Abstract] |
Property and Equipment | Property and Equipment Property and equipment consist of the following:
|  | December 31,
(in thousands) |  | 2022 |  | 2021
Leasehold improvements |  | $ | 24,162 |  |  | $ | 24,168 |
Research equipment |  | 16,345 |  |  | 16,663 |
Computer equipment |  | 4,486 |  |  | 5,720 |
Construction in progress |  | 4,160 |  |  | 8,229 |
Furniture and fixtures |  | 2,734 |  |  | 3,163 |
Computer software |  | 1,106 |  |  | 1,174 |
Vehicles |  | 66 |  |  | 71 |
Land |  | — |  |  | 3,190 |
Gross property and equipment |  | 53,059 |  |  | 62,378 |
Less accumulated depreciation |  | (22,281) |  |  | (19,882) |
Net property and equipment |  | $ | 30,778 |  |  | $ | 42,496 |
Depreciation expense was $4.8 million and $5.7 million for the years ended December 31, 2022 and 2021, respectively. Additionally, during the year ended December 31, 2022, in connection with the strategic prioritization of its gene therapy portfolio, the Company performed an assessment of its fixed assets. As a result, the Company recognized an impairment charge of $6.6 million.

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- Definition The entire disclosure for long-lived, physical asset used in normal conduct of business and not intended for resale. Includes, but is not limited to, work of art, historical treasure, and similar asset classified as collections. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 958 -SubTopic 360 -Section 50 -Paragraph 6 -URI https://asc.fasb.org/extlink&oid=126982197&loc=d3e99893-112916 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -URI https://asc.fasb.org/topic&trid=2155823 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 958 -SubTopic 360 -Section 50 -Paragraph 7 -URI https://asc.fasb.org/extlink&oid=126982197&loc=SL120174063-112916 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 958 -SubTopic 360 -Section 50 -Paragraph 1 -Subparagraph (d) -URI https://asc.fasb.org/extlink&oid=126982197&loc=d3e99779-112916 + Details
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