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Summary of Significant Accounting Policies (Tables) | 12 Months Ended
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Dec. 31, 2023
Accounting Policies [Abstract] |
Estimated Useful Lives of Property, Plant and Equipment | Estimated useful lives are as follows:
Buildings | 25-33 years
Tooling and equipment | 2-7 years
Computer equipment | 3-5 years
Software | 3-7 years
Furniture and fixtures | 5-8 years
Leasehold and building improvements | Lesser of lease term or useful life (approximately 2 to 10 years)
Property, plant, and equipment, net were as follows:
| December 31,
(In thousands) | 2023 |  | 2022
Buildings | $ | 17,806 |  |  | $ | 18,291 |
Computer equipment | 9,679 |  |  | 9,344 |
Furniture and fixtures | 3,598 |  |  | 3,529 |
Leasehold and building improvements | 33,049 |  |  | 39,761 |
Machinery and equipment | 82,302 |  |  | 96,947 |
Software | 28,074 |  |  | 23,607 |
Tooling | 30,724 |  |  | 31,898 |
| 205,232 |  |  | 223,377 |
Accumulated depreciation | (163,301) |  |  | (170,474) |
| 41,931 |  |  | 52,903 |
Construction in progress | 2,688 |  |  | 9,888 |
Total property, plant, and equipment, net | $ | 44,619 |  |  | $ | 62,791 |
Construction in progress was as follows:
| December 31,
(In thousands) | 2023 |  | 2022
Leasehold and building improvements | $ | 623 |  |  | $ | 475 |
Machinery and equipment | 738 |  |  | 2,282 |
Software | 11 |  |  | 4,862 |
Tooling | 1,197 |  |  | 1,827 |
Other | 119 |  |  | 442 |
Total construction in progress | $ | 2,688 |  |  | $ | 9,888 |
Schedule of Finite-Lived Intangible Assets | Estimated useful lives are as follows:
Capitalized software development | 2 years
Customer relationships | 10-15 years
Developed and core technology | 5-15 years
Distribution rights | 10 years
Patents | 10 years
Trademarks and trade names | 10 years
The components of intangible assets, net were as follows:
| December 31,
| 2023 |  | 2022
(In thousands) | Gross (1) |  | Accumulated Amortization (1) |  | Net (1) |  | Gross (1) |  | Accumulated Amortization (1) |  | Net (1)
Capitalized software development costs | $ | 2,161 |  |  | $ | (421) |  |  | $ | 1,740 |  |  | $ | 1,647 |  |  | $ | (44) |  |  | $ | 1,603 |
Customer relationships | 6,340 |  |  | (3,803) |  |  | 2,537 |  |  | 6,340 |  |  | (3,080) |  |  | 3,260 |
Developed and core technology | 4,220 |  |  | (3,754) |  |  | 466 |  |  | 4,520 |  |  | (3,693) |  |  | 827 |
Distribution rights | — |  |  | — |  |  | — |  |  | 308 |  |  | (281) |  |  | 27 |
Patents | 33,195 |  |  | (12,686) |  |  | 20,509 |  |  | 29,388 |  |  | (10,790) |  |  | 18,598 |
Trademarks and trade names | 450 |  |  | (353) |  |  | 97 |  |  | 450 |  |  | (295) |  |  | 155 |
Total intangible assets, net | $ | 46,366 |  |  | $ | (21,017) |  |  | $ | 25,349 |  |  | $ | 42,653 |  |  | $ | (18,183) |  |  | $ | 24,470 |
(1)This table excludes the gross value of fully amortized intangible assets totaling $45.0 million and $43.7 million on December 31, 2023 and 2022, respectively.

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