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Goodwill and Other Intangible Assets (Tables) | 12 Months Ended
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Dec. 31, 2020
Goodwill and Intangible Assets Disclosure [Abstract] |
Changes in the carrying amount of goodwill, by segment | The changes in the carrying amount of goodwill for the period ending December 31, 2020, by operating segment, were as follows:
(Dollars in thousands) | Advanced Connectivity Solutions |  | Elastomeric Material Solutions |  | Power Electronics Solutions |  | Other |  | Total
December 31, 2019 | $ | 51,694 |  |  | $ | 142,030 |  |  | $ | 66,982 |  |  | $ | 2,224 |  |  | $ | 262,930 |
Foreign currency translation adjustment | — |  |  | 991 |  |  | 6,251 |  |  | — |  |  | 7,242 |
December 31, 2020 | $ | 51,694 |  |  | $ | 143,021 |  |  | $ | 73,233 |  |  | $ | 2,224 |  |  | $ | 270,172 |
Intangible assets | The changes in the carrying amount of other intangible assets for the two-year period ending December 31, 2020, were as follows:
| December 31, 2020 |  | December 31, 2019
(Dollars in thousands) | Gross Carrying Amount |  | Accumulated Amortization |  | Net Carrying Amount |  | Gross Carrying Amount |  | Accumulated Amortization |  | Net Carrying Amount
Customer relationships | $ | 150,863 |  |  | $ | 72,014 |  |  | $ | 78,849 |  |  | $ | 149,317 |  |  | $ | 39,018 |  |  | $ | 110,299 |
Technology | 83,469 |  |  | 53,540 |  |  | 29,929 |  |  | 80,938 |  |  | 45,190 |  |  | 35,748 |
Trademarks and trade names | 12,039 |  |  | 8,149 |  |  | 3,890 |  |  | 11,994 |  |  | 4,361 |  |  | 7,633 |
Covenants not to compete | 1,340 |  |  | 827 |  |  | 513 |  |  | 1,340 |  |  | 505 |  |  | 835 |
Total definite-lived other intangible assets | 247,711 |  |  | 134,530 |  |  | 113,181 |  |  | 243,589 |  |  | 89,074 |  |  | 154,515 |
Indefinite-lived other intangible asset | 4,845 |  |  | — |  |  | 4,845 |  |  | 4,432 |  |  | — |  |  | 4,432 |
Total other intangible assets | $ | 252,556 |  |  | $ | 134,530 |  |  | $ | 118,026 |  |  | $ | 248,021 |  |  | $ | 89,074 |  |  | $ | 158,947 |
Weighted average amortization period, by intangible asset class | The weighted average amortization period as of December 31, 2020, by definite-lived other intangible asset class, is presented in the table below:
Definite-Lived Other Intangible Asset Class | Weighted Average Remaining Amortization Period
Customer relationships | 6.10
Technology | 3.90
Trademarks and trade names | 4.85
Covenants not to compete | 1.27
Total definite-lived other intangible assets | 5.45

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