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Goodwill and Other Intangible Assets (Tables) | 9 Months Ended
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Sep. 30, 2019
Goodwill and Intangible Assets Disclosure [Abstract] |
Schedule of Goodwill | The changes in the carrying amount of goodwill from December 31, 2018 to September 30, 2019 by operating segment, were as follows:
(Dollars in thousands) | Advanced Connectivity Solutions |  | Elastomeric Material Solutions |  | Power Electronics Solutions |  | Other |  | Total
December 31, 2018 | $ | 51,693 |  |  | $ | 142,589 |  |  | $ | 68,379 |  |  | $ | 2,224 |  |  | $ | 264,885 |
Foreign currency translation adjustment | — |  |  | (1,073 | ) |  | (3,260 | ) |  | — |  |  | (4,333 | )
September 30, 2019 | $ | 51,693 |  |  | $ | 141,516 |  |  | $ | 65,119 |  |  | $ | 2,224 |  |  | $ | 260,552 |
Schedule of Intangible Assets | The gross carrying amount, accumulated amortization and net carrying amount of other intangible assets as of September 30, 2019 and December 31, 2018 by classification type, were as follows:
| September 30, 2019 |  | December 31, 2018
(Dollars in thousands) | Gross Carrying Amount |  | Accumulated Amortization |  | Net Carrying Amount |  | Gross Carrying Amount |  | Accumulated Amortization |  | Net Carrying Amount
Customer relationships | $ | 148,800 |  |  | $ | 36,413 |  |  | $ | 112,387 |  |  | $ | 149,753 |  |  | $ | 30,078 |  |  | $ | 119,675 |
Technology | 80,163 |  |  | 42,736 |  |  | 37,427 |  |  | 81,535 |  |  | 38,624 |  |  | 42,911 |
Trademarks and trade names | 11,970 |  |  | 4,053 |  |  | 7,917 |  |  | 12,019 |  |  | 3,213 |  |  | 8,806 |
Covenants not to compete | 1,340 |  |  | 441 |  |  | 899 |  |  | 1,340 |  |  | 249 |  |  | 1,091 |
Total definite-lived other intangible assets | 242,273 |  |  | 83,643 |  |  | 158,630 |  |  | 244,647 |  |  | 72,164 |  |  | 172,483 |
Indefinite-lived other intangible asset | 4,309 |  |  | — |  |  | 4,309 |  |  | 4,525 |  |  | — |  |  | 4,525 |
Total other intangible assets | $ | 246,582 |  |  | $ | 83,643 |  |  | $ | 162,939 |  |  | $ | 249,172 |  |  | $ | 72,164 |  |  | $ | 177,008 |
Schedule of Weighted Average Amortization Period, by Intangible Asset Class | The weighted average amortization period as of September 30, 2019, 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 |  | 7.4 years
Technology |  | 4.2 years
Trademarks and trade names |  | 4.9 years
Covenants not to compete |  | 1.7 years
Total definite-lived other intangible assets |  | 6.4 years

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