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Segment Reporting (Schedule Of Segment Reporting Information By Segment) (Details) (USD $) In Thousands, unless otherwise specified | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2014 | Sep. 30, 2013 | Sep. 30, 2014 | Sep. 30, 2013
Segment Reporting Information [Line Items] |  |  |  |
Total net sales | $ 232,703 | $ 235,686 | $ 691,710 | $ 706,131
Add back freight | 7,726 | 7,508 | 20,897 | 22,119
Sales as shown in the Consolidated Statements of Income | 240,429 | 243,194 | 712,607 | 728,250
Total | 18,422 | 22,728 | 50,576 | 66,380
Interest income | 117 | 138 | 419 | 307
Interest expense | 590 | 727 | 1,751 | 2,132
Gain (loss) on investment accounted for under fair value method |  |  | 2,900 | 100
Gain (Loss) on Disposition of Assets |  |  | 919 | 0
Cost-method Investments, Other than Temporary Impairment | 0 | 0 | 0 |
Stock option-based compensation costs | 358 | 260 | 944 | 859
Corporate expenses, net | 5,477 | 8,414 | 17,291 | 24,058
Income from continuing operations before income taxes | 16,114 | 10,365 | 35,117 | 38,720
Income taxes from continuing operations | 5,369 | 2,937 | 12,141 | 12,185
Income from continuing operations | 10,745 | 7,428 | 22,976 | 26,535
Income (loss) from discontinued operations, net of tax | 850 | (450) | 850 | (13,990)
Net income | 11,595 | 6,978 | 23,826 | 12,545
kaleo |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Gain (loss) on investment accounted for under fair value method | 4,000 | (3,100) | 2,900 | 100
Income taxes from continuing operations | (1,074) | 912 | (7,205) | (322)
Net income | (1,774) | 1,388 | (11,649) | 227
Film Products |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Total net sales | 143,098 | 157,187 | 438,274 | 469,838
Ongoing operations | 13,206 | 19,617 | 44,891 | 55,351
Plant shutdowns, asset impairments, restructurings and other | (410) | (155) | (12,578) | (364)
Aluminum Extrusions |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Total net sales | 89,605 | 78,499 | 253,436 | 236,293
Ongoing operations | 5,752 | 3,426 | 18,563 | 12,351
Plant shutdowns, asset impairments, restructurings and other | (126) | (160) | (300) | (958)
Alleghany and Bath County, Virginia [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Gain (Loss) on Disposition of Assets | 0 |  | 1,208 |
Cost-method Investments, Other than Temporary Impairment |  |  |  | $ (1,018)

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