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Segment Reporting (Schedule Of Identifiable Assets By Segment) (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended |  |
--- | --- | --- | --- | ---
Sep. 30, 2017 | Sep. 30, 2016 | Sep. 30, 2017 | Sep. 30, 2016 | Dec. 31, 2016 | Dec. 31, 2015
Stock option-based compensation costs | $ 111 | $ 31 | $ 153 | $ 24 |  |
Subtotal | 717,663 |  | 717,663 |  | $ 583,033 |
General corporate | 62,435 |  | 62,435 |  | 38,618 |
Cash and cash equivalents | 31,850 | $ 28,356 | 31,850 | $ 28,356 | 29,511 | $ 44,156
Total assets | 811,948 |  | 811,948 |  | 651,162 |
PE Films |  |  |  |  |  |
Total assets | 295,181 |  | 295,181 |  | 278,558 |
Flexible Packaging Films [Member] [Domain] |  |  |  |  |  |
Total assets | 153,488 |  | 153,488 |  | 156,836 |
Aluminum Extrusions |  |  |  |  |  |
Total assets | $ 268,994 |  | $ 268,994 |  | $ 147,639 |

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- Definition Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(a)(12)) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(11)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 + Details
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