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Goodwill and Intangible Assets (Tables) | 3 Months Ended
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Mar. 31, 2018
Goodwill and Intangible Assets Disclosure [Abstract] |
Schedule of Goodwill | The changes in the carrying amount of goodwill for the period ending March 31, 2018, by operating segment, were as follows:
(Dollars in thousands) | Advanced Connectivity Solutions |  | Elastomeric Material Solutions |  | Power Electronics Solutions |  | Other |  | Total
December 31, 2017 | $ | 51,693 |  |  | $ | 111,575 |  |  | $ | 71,615 |  |  | $ | 2,224 |  |  | $ | 237,107 |
Foreign currency translation adjustment | — |  |  | 23 |  |  | 1,922 |  |  | — |  |  | 1,945 |
March 31, 2018 | $ | 51,693 |  |  | $ | 111,598 |  |  | $ | 73,537 |  |  | $ | 2,224 |  |  | $ | 239,052 |
Intangible Assets | Other Intangible Assets
| March 31, 2018 |  | December 31, 2017
(Dollars in thousands) | Gross Carrying Amount |  | Accumulated Amortization |  | Net Carrying Amount |  | Gross Carrying Amount |  | Accumulated Amortization |  | Net Carrying Amount
Customer relationships | $ | 129,330 |  |  | $ | 24,675 |  |  | $ | 104,655 |  |  | $ | 128,907 |  |  | $ | 22,514 |  |  | $ | 106,393 |
Technology | 74,671 |  |  | 35,645 |  |  | 39,026 |  |  | 73,891 |  |  | 33,491 |  |  | 40,400 |
Trademarks and patents | 10,214 |  |  | 2,413 |  |  | 7,801 |  |  | 10,213 |  |  | 2,157 |  |  | 8,056 |
Covenants not to compete | 1,800 |  |  | 1,150 |  |  | 650 |  |  | 1,799 |  |  | 1,108 |  |  | 691 |
Total definite-lived other intangible assets | 216,015 |  |  | 63,883 |  |  | 152,132 |  |  | 214,810 |  |  | 59,270 |  |  | 155,540 |
Indefinite-lived other intangible asset | 4,866 |  |  | — |  |  | 4,866 |  |  | 4,738 |  |  | — |  |  | 4,738 |
Total other intangible assets | $ | 220,881 |  |  | $ | 63,883 |  |  | $ | 156,998 |  |  | $ | 219,548 |  |  | $ | 59,270 |  |  | $ | 160,278 |
Weighted Average Amortization Period, by Intangible Asset Class | The weighted average remaining amortization period as of March 31, 2018, 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 |  | 9.0
Technology |  | 4.8
Trademarks and patents |  | 6.0
Covenants not to compete |  | 1.9
Total definite-lived other intangible assets |  | 7.7

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- Definition Tabular disclosure of assets, excluding financial assets and goodwill, lacking physical substance with a finite life, by either major class or business segment. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16265-109275 + Details
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