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Goodwill and Other Intangible Assets (Tables) | 12 Months Ended
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Dec. 31, 2017
Goodwill and Other Intangible Assets |
Schedule of changes in the carrying amount of goodwill by segment |
|  | Interconnect |  | Cable |  |  |  |
|  | Products and |  | Products and |  |  |  |
|  | Assemblies |  | Solutions |  | Total |
Goodwill at December 31, 2015 |  | $ | 2,569.2 |  | $ | 123.7 |  | $ | 2,692.9 |
Acquisition-related |  |  | 1,008.7 |  |  | 22.6 |  |  | 1,031.3 |
Foreign currency translation |  |  | (45.4) |  |  | — |  |  | (45.4) |
Goodwill at December 31, 2016 |  |  | 3,532.5 |  |  | 146.3 |  |  | 3,678.8 |
Acquisition-related |  |  | 233.6 |  |  | 0.2 |  |  | 233.8 |
Foreign currency translation |  |  | 130.0 |  |  | — |  |  | 130.0 |
Goodwill at December 31, 2017 |  | $ | 3,896.1 |  | $ | 146.5 |  | $ | 4,042.6 |
Summary of the Company's intangible assets |
|  |  | December 31, 2017 |  | December 31, 2016
| Weighted |  | Gross |  |  |  | Net |  | Gross |  |  |  | Net
| Average |  | Carrying |  | Accumulated |  | Carrying |  | Carrying |  | Accumulated |  | Carrying
| Life (years) |  | Amount |  | Amortization |  | Amount |  | Amount |  | Amortization |  | Amount
Customer relationships | 10 |  | $ | 398.1 |  | $ | 199.8 |  | $ | 198.3 |  | $ | 381.1 |  | $ | 159.1 |  | $ | 222.0
Proprietary technology | 11 |  |  | 107.5 |  |  | 50.7 |  |  | 56.8 |  |  | 106.7 |  |  | 40.9 |  |  | 65.8
Backlog and other | 2 |  |  | 34.0 |  |  | 33.6 |  |  | 0.4 |  |  | 34.0 |  |  | 33.5 |  |  | 0.5
Total intangible assets (definite-lived) | 10 |  |  | 539.6 |  |  | 284.1 |  |  | 255.5 |  |  | 521.8 |  |  | 233.5 |  |  | 288.3
Trade names (indefinite-lived) | - |  |  | 186.1 |  |  | — |  |  | 186.1 |  |  | 186.1 |  |  | — |  |  | 186.1
|  |  | $ | 725.7 |  | $ | 284.1 |  | $ | 441.6 |  | $ | 707.9 |  | $ | 233.5 |  | $ | 474.4

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- Definition Tabular disclosure of amortizable finite-lived intangible assets, in total and by major class, including the gross carrying amount and accumulated amortization, and indefinite-lived intangible assets not subject to amortization, excluding goodwill, in total and by major class. A major class is composed of intangible assets that can be grouped together because they are similar, either by their nature or by their use in the operations of a company. + References No definition available. + Details
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- Definition Tabular disclosure of goodwill by reportable segment and in total which includes a rollforward schedule. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13854-109267 + Details
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