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Intangible Assets (Tables) | 12 Months Ended
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Dec. 31, 2022
Goodwill and Intangible Assets Disclosure [Abstract] |
Intangible Assets Other Than Goodwill | Intangible assets at December 31, 2022 and 2021 are summarized as follows:
| 2022 |  | 2021
(in thousands) | Gross |  | Accumulated Amortization |  | Net |  | Gross |  | Accumulated Amortization |  | Net |  | Weighted Average Useful Life Remaining (in years)
Intangible assets with finite lives: |  |  |  |  |  |  |  |  |  |  |  |  |
Customer relationships | $ | 51,137 |  |  | $ | (48,695) |  |  | $ | 2,442 |  |  | $ | 53,062 |  |  | $ | (45,613) |  |  | $ | 7,449 |  |  | 3.7
Acquired technology | 55,480 |  |  | (10,707) |  |  | 44,773 |  |  | 17,518 |  |  | (5,430) |  |  | 12,088 |  |  | 8.3
Trade names | 35,930 |  |  | (12,455) |  |  | 23,475 |  |  | 20,448 |  |  | (10,438) |  |  | 10,010 |  |  | 9.3
Patent costs | 18,673 |  |  | (10,909) |  |  | 7,764 |  |  | 21,852 |  |  | (11,812) |  |  | 10,040 |  |  | 9.5
Trade secrets | 19,828 |  |  | (19,828) |  |  | — |  |  | 19,924 |  |  | (18,971) |  |  | 953 |  |  | —
Acquired patents | 17,499 |  |  | (15,661) |  |  | 1,838 |  |  | 16,257 |  |  | (15,945) |  |  | 312 |  |  | 12.7
Other | 13,255 |  |  | (8,765) |  |  | 4,490 |  |  | 12,982 |  |  | (7,999) |  |  | 4,983 |  |  | 8.6
Total intangible assets | $ | 211,802 |  |  | $ | (127,020) |  |  | $ | 84,782 |  |  | $ | 162,043 |  |  | $ | (116,208) |  |  | $ | 45,835 |  |  | 8.7

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