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Goodwill and Intangible Assets (Tables) | 12 Months Ended
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Dec. 31, 2015
Goodwill and Intangible Assets Disclosure [Abstract] |
Intangible assets | The changes in the carrying amount of other intangible assets for the period ending December 31, 2015, were as follows:
| December 31, 2015 |  | December 31, 2014
(Dollars in thousands) | Gross Carrying Amount |  | Accumulated Amortization |  | Net Carrying Amount |  | Gross Carrying Amount |  | Accumulated Amortization |  | Net Carrying Amount
Trademarks and patents | $ | 2,543 |  |  | $ | 718 |  |  | $ | 1,825 |  |  | $ | 1,046 |  |  | $ | 364 |  |  | $ | 682 |
Technology | 47,724 |  |  | 19,681 |  |  | 28,043 |  |  | 33,942 |  |  | 15,958 |  |  | 17,984 |
Covenant-not-to-compete | 943 |  |  | 943 |  |  | — |  |  | 1,016 |  |  | 823 |  |  | 193 |
Customer relationships | 49,948 |  |  | 9,100 |  |  | 40,848 |  |  | 19,123 |  |  | 4,406 |  |  | 14,717 |
Total definite lived intangible assets | 101,158 |  |  | 30,442 |  |  | 70,716 |  |  | 55,127 |  |  | 21,551 |  |  | 33,576 |
Indefinite lived intangible assets | 4,303 |  |  | — |  |  | 4,303 |  |  | 4,764 |  |  | — |  |  | 4,764 |
Total intangible assets | $ | 105,461 |  |  | $ | 30,442 |  |  | $ | 75,019 |  |  | $ | 59,891 |  |  | $ | 21,551 |  |  | $ | 38,340 |
Weighted average amortization period, by intangible asset class | The weighted average amortization period as of December 31, 2015, by intangible asset class, is presented in the table below:
Intangible Asset Class |  | Weighted Average Amortization Period
Trademarks and patents |  | 3.7
Technology |  | 4.1
Customer relationships |  | 5.5
Total other intangible assets |  | 4.9
Changes in the carrying amount of goodwill, by segment | The changes in the carrying amount of goodwill for the period ending December 31, 2015, by reportable segment, were as follows:
(Dollars in thousands) | Elastomeric Material Solutions |  | Advanced Connectivity Solutions |  | Power Electronics Solutions |  | Other |  | Total
December 31, 2014 | $ | 23,565 |  |  | $ | — |  |  | $ | 72,438 |  |  | $ | 2,224 |  |  | $ | 98,227 |
Arlon acquisition | 33,872 |  |  | 51,931 |  |  | — |  |  | — |  |  | 85,803 |
Foreign currency translation adjustment | (1,168 | ) |  | — |  |  | (7,409 | ) |  | — |  |  | (8,577 | )
December 31, 2015 | $ | 56,269 |  |  | $ | 51,931 |  |  | $ | 65,029 |  |  | $ | 2,224 |  |  | $ | 175,453 |

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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=26713463&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=26713463&loc=d3e16265-109275 + Details
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