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Restructuring and Impairment Charges (Restructuring and Impairment Charges) (Detail) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016
Restructuring and Impairment |  |  |
Total Restructuring and Impairment Charges | $ 4,038 | $ 3,567 | $ 734
Advanced Connectivity Solutions | Severance and other related costs |  |  |
Restructuring and Impairment |  |  |
Total Restructuring and Impairment Charges | 244 | 1,305 | 375
Advanced Connectivity Solutions | Allocated impairment charges |  |  |
Restructuring and Impairment |  |  |
Total Restructuring and Impairment Charges | 1,506 | 161 | 0
Elastomeric Material Solutions | Severance and other related costs |  |  |
Restructuring and Impairment |  |  |
Total Restructuring and Impairment Charges | 2,152 | 834 | 176
Elastomeric Material Solutions | Allocated impairment charges |  |  |
Restructuring and Impairment |  |  |
Total Restructuring and Impairment Charges | 0 | 103 | 0
Power Electronics Solutions | Severance and other related costs |  |  |
Restructuring and Impairment |  |  |
Total Restructuring and Impairment Charges | 136 | 621 | 183
Power Electronics Solutions | Allocated impairment charges |  |  |
Restructuring and Impairment |  |  |
Total Restructuring and Impairment Charges | $ 0 | $ 543 | $ 0

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- Definition Amount, after cash payment, of expenses associated with exit or disposal activities pursuant to an authorized plan and expenses resulting from the write-down of assets. Excludes expenses related to a business combination, a discontinued operation or an asset retirement obligation. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3602-108585 + Details
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