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Segment Reporting (Schedule Of Financial Information Concerning Reportable Segments) (Details) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2015 USD ($) | Jun. 30, 2014 USD ($) | Jun. 30, 2015 USD ($) segment | Jun. 30, 2014 USD ($)
Segment Reporting Information [Line Items] |  |  |  |
Number of reportable segments | segment |  |  | 2 |
Total net sales | $ 165,122 | $ 284,184 | $ 372,333 | $ 564,975
Total operating loss | (12,997) | (139,488) | (58,830) | (146,557)
Other expense (income), net | 699 | (41) | 1,092 | 753
Interest expense | 9,195 | 9,155 | 18,116 | 18,154
Interest income | (273) | (55) | (346) | (113)
Loss before provision for income taxes | $ (22,618) | $ (148,547) | (77,692) | (165,351)
Industrial Materials |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Total net sales |  |  | 290,049 | 425,431
Total operating loss |  |  | (22,804) | 2,660
Engineered Solutions |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Total net sales |  |  | 82,284 | 139,544
Total operating loss |  |  | $ (7,848) | $ (119,259)

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