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Segment Reporting Net Sales by Product Group Table (Tables) | 3 Months Ended
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Mar. 31, 2018
Disaggregation of Revenue [Line Items] |
Disaggregation of Revenue [Table Text Block] |
Net Sales by Product Group
|  | Three Months Ended March 31,
(In thousands) | 2018 |  | 2017(c)
PE Films: |  |  |
Personal care materials | $ | 61,644 |  |  | $ | 61,299 |
Surface protection films | 29,815 |  |  | 23,441 |
LED lighting products & other films | 1,790 |  |  | 1,672 |
Subtotal | 93,249 |  |  | 86,412 |
Flexible Packaging Films | 28,437 |  |  | 26,710 |
Aluminum Extrusions: |  |  |
Nonresidential building & construction | 65,280 |  |  | 52,210 |
Consumer durables | 15,189 |  |  | 12,097 |
Distribution | 10,971 |  |  | 6,334 |
Automotive | 9,673 |  |  | 10,174 |
Residential building & construction | 9,601 |  |  | 7,272 |
Machinery & equipment | 9,094 |  |  | 7,205 |
Electrical | 8,427 |  |  | 4,306 |
Subtotal | 128,235 |  |  | 99,598 |
Total | $ | 249,921 |  |  | $ | 212,720 |

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- Definition Tabular disclosure of disaggregation of revenue into categories depicting how nature, amount, timing, and uncertainty of revenue and cash flows are affected by economic factor. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=82913847&loc=SL49130545-203045 + Details
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