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Segment Reporting (Schedule Of Segment Reporting Information 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
Segment Reporting Information [Line Items] |  |  |  |  |
Assets | $ 811,948 |  | $ 811,948 |  | $ 651,162
Total net sales | 238,500 | $ 200,549 | 690,654 | $ 602,348 |
Add back freight | 8,621 | 7,153 | 24,840 | 21,221 |
Sales as shown in the Consolidated Statements of Income | 247,121 | 207,702 | 715,494 | 623,569 |
Total Segment Income (Loss) | 21,482 | 18,749 | 66,593 | 49,696 |
Interest income | 42 | 70 | 171 | 158 |
Interest expense | 1,757 | 886 | 4,579 | 2,918 |
Gain (loss) on investment accounted for under fair value method |  |  | 24,800 | (200) |
Gain (Loss) on Disposition of Assets |  |  | 412 | 0 |
Stock option-based compensation costs | 111 | 31 | 153 | 24 |
Corporate expenses, net | 6,960 | 7,223 | 20,985 | 22,110 |
Income from continuing operations before income taxes | 12,696 | 9,379 | 65,847 | 24,602 |
Income taxes from continuing operations | 4,422 | (2,669) | 9,667 | 1,864 |
Net income | 8,274 | 12,048 | 56,180 | 22,738 |
kaleo |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Assets | 154,736 |  | 154,736 |  | 131,234
Gain (loss) on investment accounted for under fair value method | 0 | (1,300) | 24,800 | (200) |
Income taxes from continuing operations | 244 | 0 | 734 | 8 |
Net income | 494 | (7,795) | (7,515) | (21,040) |
PE Films |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Assets | 295,181 |  | 295,181 |  | 278,558
Total net sales | 89,723 | 82,179 | 265,773 | 251,473 |
Operating profit from ongoing operations | 11,251 | 9,011 | 30,965 | 23,564 |
Plant shutdowns, asset impairments, restructurings and other | (919) | (1,187) | (3,890) | (3,678) |
Flexible Packaging Films [Member] [Domain] |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Assets | 153,488 |  | 153,488 |  | 156,836
Total net sales | 26,628 | 27,303 | 79,925 | 80,888 |
Operating profit from ongoing operations | (1,074) | 93 | (3,392) | 1,184 |
Plant shutdowns, asset impairments, restructurings and other | 0 | 0 | 11,856 | 0 |
Aluminum Extrusions |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Assets | 268,994 |  | 268,994 |  | $ 147,639
Total net sales | 122,149 | 91,067 | 344,956 | 269,987 |
Operating profit from ongoing operations | 12,601 | 9,427 | 34,201 | 27,786 |
Plant shutdowns, asset impairments, restructurings and other | $ (377) | $ 1,405 | $ (3,147) | $ 840 |

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