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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, 2020 | Mar. 31, 2020 | Sep. 30, 2019 | Sep. 30, 2020 | Sep. 30, 2019
Segment Reporting Information [Line Items] |  |  |  |  |
Total net sales | $ 177,917 |  | $ 198,880 | $ 543,544 | $ 606,573
Gross Sales | 184,370 |  | 205,968 | 562,766 | 628,011
Goodwill, Impairment Loss | 0 | $ (13,700) | 0 | (13,696) | 0
Amortization of identifiable intangibles | 753 |  | 3,400 | 2,264 | 5,182
Goodwill, Impairment Loss, Net of Tax |  | $ 10,500 |  |  |
Total Segment Income (Loss) | 24,869 |  | 21,766 | 62,640 | 70,466
Interest income | 11 |  | 11 | 43 | 25
Interest expense | 494 |  | 859 | 1,598 | 3,354
Gain (loss) on investment in kaléo accounted for under fair value method |  |  |  | (61,000) | 10,900
Gain (Loss) on Disposition of Assets |  |  |  | 0 | (6,328)
Stock option-based compensation costs | 518 |  | 791 | 1,786 | 2,060
Corporate expenses, net | 10,586 |  | 9,198 | 29,915 | 25,538
Income from continuing operations before income taxes | (22,918) |  | 15,229 | (31,616) | 68,021
Income taxes from continuing operations | (5,942) |  | 177 | (8,308) | 10,550
Income from continuing operations | (16,976) |  | 15,052 | (23,308) | 57,471
Net loss | (65,213) |  | 17,133 | (76,339) | 51,395
Discontinued Operation, Income (Loss) from Discontinued Operation During Phase-out Period, Net of Tax | (48,237) |  | 2,081 | (53,031) | (6,076)
kaleo |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Gain (loss) on investment in kaléo accounted for under fair value method | 36,200 |  | (4,300) | (61,000) | 28,482
PE Films |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Total net sales | 26,440 |  | 34,487 | 103,444 | 99,313
EBITDA | (56) |  | (60) | (225) | (555)
Earnings before interest, taxes, depreciation and amortization (EBITDA) | 6,041 |  | 10,257 | 33,928 | 30,452
Depreciation, Depletion and Amortization | (1,785) |  | (1,458) | (4,868) | (4,380)
Earnings before interest and taxes (EBIT) | 4,256 |  | 8,799 | 29,060 | 26,072
Flexible Packaging Films [Member] [Domain] |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Total net sales | 35,856 |  | 34,888 | 100,534 | 101,950
EBITDA | (3) |  | 0 | (14) | 0
Aluminum Extrusions [Member] |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Total net sales | 115,621 |  | 129,505 | 339,566 | 405,310
EBITDA | (720) |  | (610) | (2,637) | (667)
Goodwill, Impairment Loss | 0 |  | 0 | 13,696 | 0
Amortization of identifiable intangibles | 0 |  | (2,510) | 0 | (2,510)
Earnings before interest, taxes, depreciation and amortization (EBITDA) | 16,540 |  | 16,464 | 41,496 | 51,231
Depreciation, Depletion and Amortization | (4,251) |  | (4,317) | (12,632) | (12,481)
Earnings before interest and taxes (EBIT) | 12,289 |  | 12,147 | 28,864 | 38,750
Flexible Packaging Films [Member] |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Earnings before interest, taxes, depreciation and amortization (EBITDA) | 9,546 |  | 4,394 | 22,594 | 10,477
Depreciation, Depletion and Amortization | (443) |  | (394) | (1,306) | (1,101)
Earnings before interest and taxes (EBIT) | 9,103 |  | 4,000 | 21,288 | 9,376
Shipping and Handling [Member] |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Cost of goods sold | 6,453 |  | 7,088 | 19,222 | 21,438
Personal Care Materials [Member] | PE Films |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Total net sales | 5,042 |  | 5,607 | 17,262 | 17,305
Surface Protection Films [Member] | PE Films |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Total net sales | 19,868 |  | 27,053 | 79,919 | 76,194
Films For Other Markets [Member] | PE Films |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Total net sales | 1,530 |  | 1,827 | 6,263 | 5,814
Film Products Subtotal [Member] | PE Films |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Total net sales | 26,440 |  | 34,487 | 103,444 | 99,313
Nonresidential Building And Construction [Member] | Aluminum Extrusions [Member] |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Total net sales | 62,611 |  | 64,340 | 190,476 | 202,998
Consumer Durables [Member] | Aluminum Extrusions [Member] |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Total net sales | 11,160 |  | 12,939 | 31,491 | 44,865
Distribution [Member] | Aluminum Extrusions [Member] |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Total net sales | 7,796 |  | 9,366 | 22,055 | 26,678
Automotive [Member] | Aluminum Extrusions [Member] |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Total net sales | 10,332 |  | 11,091 | 25,375 | 36,214
Residential Building And Construction [Member] | Aluminum Extrusions [Member] |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Total net sales | 10,149 |  | 11,110 | 29,016 | 33,060
Machinery and Equipment BNL [Domain] | Aluminum Extrusions [Member] |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Total net sales | 7,581 |  | 10,191 | 23,147 | 29,585
Electrical [Member] | Aluminum Extrusions [Member] |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Total net sales | 5,992 |  | 10,468 | 18,006 | 31,910
Aluminum Extrusions Subtotal [Member] | Aluminum Extrusions [Member] |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Total net sales | 115,621 |  | 129,505 | 339,566 | 405,310
Product [Member] |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Cost of goods sold | $ 136,008 |  | $ 159,989 | $ 415,212 | $ 488,320

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