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Goodwill and Other Intangible Assets (Tables) | 3 Months Ended
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Mar. 31, 2019
Goodwill and Intangible Assets Disclosure [Abstract] |
Schedule of Goodwill | The changes in the carrying amount of goodwill from December 31, 2018 to March 31, 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 | — |  |  | (273 | ) |  | (1,361 | ) |  | — |  |  | (1,634 | )
March 31, 2019 | $ | 51,693 |  |  | $ | 142,316 |  |  | $ | 67,018 |  |  | $ | 2,224 |  |  | $ | 263,251 |
Intangible Assets | Other Intangible Assets The gross carrying amount, accumulated amortization and net carrying amount of other intangible assets as of March 31, 2019 and December 31, 2018 by classification type, were as follows:
| March 31, 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 | $ | 149,404 |  |  | $ | 32,196 |  |  | $ | 117,208 |  |  | $ | 149,753 |  |  | $ | 30,078 |  |  | $ | 119,675 |
Technology | 80,979 |  |  | 39,925 |  |  | 41,054 |  |  | 81,535 |  |  | 38,624 |  |  | 42,911 |
Trademarks and trade names | 12,007 |  |  | 3,496 |  |  | 8,511 |  |  | 12,019 |  |  | 3,213 |  |  | 8,806 |
Covenants not to compete | 1,340 |  |  | 313 |  |  | 1,027 |  |  | 1,340 |  |  | 249 |  |  | 1,091 |
Total definite-lived other intangible assets | 243,730 |  |  | 75,930 |  |  | 167,800 |  |  | 244,647 |  |  | 72,164 |  |  | 172,483 |
Indefinite-lived other intangible asset | 4,434 |  |  | — |  |  | 4,434 |  |  | 4,525 |  |  | — |  |  | 4,525 |
Total other intangible assets | $ | 248,164 |  |  | $ | 75,930 |  |  | $ | 172,234 |  |  | $ | 249,172 |  |  | $ | 72,164 |  |  | $ | 177,008 |
Weighted Average Amortization Period, by Intangible Asset Class | The weighted average amortization period as of March 31, 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 |  | 7.5 years
Technology |  | 4.3 years
Trademarks and trade names |  | 5.0 years
Covenants not to compete |  | 2.0 years
Total definite-lived other intangible assets |  | 6.5 years

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