Segment Reporting (Schedule Of Financial Information Concerning Reportable Segments) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
Mar. 31, 2015 segment	Mar. 31, 2014
Segment Reporting Information [Line Items]
Number of reportable segments	2us-gaap_NumberOfReportableSegments
Total net sales	$ 207,211us-gaap_SalesRevenueNet	$ 280,791us-gaap_SalesRevenueNet
Total operating loss	(45,833)us-gaap_OperatingIncomeLoss	(7,069)us-gaap_OperatingIncomeLoss
Other expense (income), net	393us-gaap_OtherNonoperatingIncomeExpense	794us-gaap_OtherNonoperatingIncomeExpense
Interest expense	8,921us-gaap_InterestExpense	8,999us-gaap_InterestExpense
Interest income	(73)us-gaap_InvestmentIncomeInterest	(58)us-gaap_InvestmentIncomeInterest
Loss before provision for income taxes	(55,074)	(16,804)
Industrial Materials
Segment Reporting Information [Line Items]
Total net sales	165,037	218,776
Total operating loss	(25,898)	1,600
Engineered Solutions
Segment Reporting Information [Line Items]
Total net sales	42,174	62,015
Total operating loss	$ (4,393)	$ 5,406

This element represents the income or loss from continuing operations attributable to the economic entity which may also be defined as revenue less expenses from ongoing operations, after income or loss from equity method investments, but before income taxes, extraordinary items, and noncontrolling interest.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 940

-SubTopic 20

-Section 25

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Reference 2: http://www.xbrl.org/2003/role/presentationRef

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-Name Accounting Standards Codification

-Topic 235

-SubTopic 10

-Section S99

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Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 03

-Paragraph 10

-Article 5

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- Definition

Amount of the cost of borrowed funds accounted for as interest expense.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 835

-SubTopic 20

-Section 50

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Reference 2: http://www.xbrl.org/2003/role/presentationRef

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-Name Accounting Standards Codification

-Topic 942

-SubTopic 225

-Section S99

-Paragraph 1

-Subparagraph (SX 210.9-04.9)

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- Definition

Amount before accretion (amortization) of purchase discount (premium) of interest income on nonoperating securities.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

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-Section S99

-Paragraph 2

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- Definition

Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements.

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- Definition

The net result for the period of deducting operating expenses from operating revenues.

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- Definition

The net amount of other income and expense amounts, the components of which are not separately disclosed on the income statement, resulting from ancillary business-related activities (that is, excluding major activities considered part of the normal operations of the business) also known as other nonoperating income (expense) recognized for the period. Such amounts may include: (a) dividends, (b) interest on securities, (c) net gains or losses on securities, (d) unusual costs, (e) gains or losses on foreign exchange transactions, and (f) miscellaneous other income and expense items.

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-Name Accounting Standards Codification

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- Definition

Total revenue from sale of goods and services rendered during the reporting period, in the normal course of business, reduced by sales returns and allowances, and sales discounts.

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