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PROPERTY AND EQUIPMENT | 12 Months Ended
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Dec. 31, 2023
Property, Plant and Equipment [Abstract] |
PROPERTY AND EQUIPMENT | 6. PROPERTY AND EQUIPMENT: Property and equipment, net consist of the following (in thousands):
|  | December 31, |
|  | 2023 |  |  | 2022 |
Land |  | $ | 12,230 |  |  | $ | 2,642 |
Building and improvements |  |  | 116,903 |  |  |  | 99,586 |
Office and lab equipment |  |  | 148,465 |  |  |  | 129,697 |
Furniture, fixtures and computer related assets |  |  | 18,970 |  |  |  | 18,071 |
Construction-in-progress |  |  | 22,490 |  |  |  | 10,567 |
|  |  | 319,058 |  |  |  | 260,563 |
Less: Accumulated depreciation |  |  | (143,908 | ) |  |  | (117,118 | )
Property and equipment, net |  | $ | 175,150 |  |  | $ | 143,445 |
Depreciation expense was $27.4 million, $24.8 million and $20.0 million for the years ended December 31, 2023, 2022 and 2021, respectively. The increase in property and equipment, net for the year ended December 31, 2023 is primarily due to the purchases of two previously leased facilities for an aggregate cost of $23.4 million and ongoing renovation activities at our research and development center in Ewing, New Jersey.

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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://fasb.org/us-gaap/role/ref/legacyRef -Topic 360 -Name Accounting Standards Codification -Publisher FASB -URI https://asc.fasb.org//360/tableOfContent Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name Accounting Standards Codification -Section 50 -Paragraph 6 -SubTopic 360 -Topic 958 -Publisher FASB -URI https://asc.fasb.org//1943274/2147480321/958-360-50-6 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (d) -SubTopic 360 -Topic 958 -Publisher FASB -URI https://asc.fasb.org//1943274/2147480321/958-360-50-1 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Name Accounting Standards Codification -Section 50 -Paragraph 7 -SubTopic 360 -Topic 958 -Publisher FASB -URI https://asc.fasb.org//1943274/2147480321/958-360-50-7 + Details
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