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Segment Reporting (Tables) | 12 Months Ended
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Dec. 31, 2013
Segment Reporting Information, Revenue for Reportable Segment [Abstract] |
Schedule Of Financial Information Concerning Reportable Segments | The following tables summarize financial information concerning our reportable segments:
| For the year Ended December 31,
2011 |  | 2012 |  | 2013
| (Dollars in thousands)
Net sales to external customers: |  |  |  |  |
Industrial Materials | $ | 1,132,194 |  |  | $ | 1,025,571 |  |  | $ | 909,448 |
Engineered Solutions | 187,990 |  |  | 222,693 |  |  | 257,226 |
Total net sales | $ | 1,320,184 |  |  | $ | 1,248,264 |  |  | $ | 1,166,674 |
Segment operating income: |  |  |  |  |
Industrial Materials | $ | 158,547 |  |  | $ | 143,268 |  |  | $ | (22,452 | )
Engineered Solutions | 7,462 |  |  | 13,200 |  |  | 19,882 |
Total segment operating income | $ | 166,009 |  |  | $ | 156,468 |  |  | $ | (2,570 | )
Reconciliation of segment operating income to income from continuing operations before provision for income taxes |  |  |  |  |
Other expense (income), net | 4,835 |  |  | (1,005 | ) |  | 1,698 |
Interest expense | 18,307 |  |  | 23,247 |  |  | 36,037 |
Interest income | (424 | ) |  | (261 | ) |  | (203 | )
Income (loss) before provision for income taxes | $ | 143,291 |  |  | $ | 134,487 |  |  | $ | (40,102 | )
Schedule Of Long-Lived Assets By Reportable Segment [Table Text Block] |
| At December 31,
| 2012 |  | 2013
| (Dollars in thousands)
Long-lived assets (a): |  |  |
Industrial Materials. | $ | 633,205 |  |  | $ | 601,322 |
Engineered Solutions | 200,702 |  |  | 219,663 |
Total long-lived assets | $ | 833,907 |  |  | $ | 820,985 |
Schedule of Revenue from External Customers Attributed to Foreign Countries by Geographic Area [Table Text Block] | The following tables summarize information as to our operations in different geographic areas.
| For the year Ended December 31,
2011 |  | 2012 |  | 2013
| (Dollars in thousands)
Net sales: |  |  |  |  |
U.S. | $ | 353,416 |  |  | $ | 372,014 |  |  | $ | 289,866 |
Americas | 252,316 |  |  | 195,748 |  |  | 177,602 |
Asia Pacific | 240,220 |  |  | 235,658 |  |  | 220,945 |
Europe, Middle East, Africa | 474,232 |  |  | 444,844 |  |  | 478,261 |
Total | $ | 1,320,184 |  |  | $ | 1,248,264 |  |  | $ | 1,166,674 |
Schedule of Disclosure on Geographic Areas, Long-Lived Assets in Individual Foreign Countries by Country [Table Text Block] |
| At December 31,
2012 |  | 2013
(Dollars in thousands)
Long-lived assets (a): |  |  |
U.S. and Canada | $ | 523,818 |  |  | $ | 540,274 |
Mexico | 79,279 |  |  | 83,428 |
Brazil | 47,593 |  |  | 26,008 |
France | 55,792 |  |  | 61,264 |
Spain | 78,392 |  |  | 82,051 |
South Africa | 36,937 |  |  | 16,408 |
Switzerland | 4,829 |  |  | 4,618 |
Other countries | 7,267 |  |  | 6,934 |
Total | $ | 833,907 |  |  | $ | 820,985 |
(a) | Long-lived assets represent fixed assets, net of accumulated depreciation.

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- Definition Tabular disclosure of the names of foreign countries in which material long-lived assets other than financial instruments, long-term customer relationships of a financial institution, mortgage and other servicing rights, deferred policy acquisition costs, and deferred tax assets are located, and amount of such long-lived assets located in that country or foreign geographic area. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 41 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e9038-108599 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 131 -Paragraph 38 -Subparagraph b -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
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- Definition Tabular disclosure of the profit or loss and total assets for each reportable segment. An entity discloses certain information on each reportable segment if the amounts (a) are included in the measure of segment profit or loss reviewed by the chief operating decision maker or (b) are otherwise regularly provided to the chief operating decision maker, even if not included in that measure of segment profit or loss. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=14024403&loc=d3e13816-109267 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 30 -URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e8906-108599 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 21 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e8721-108599 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 22 -URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e8736-108599 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 25 -URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e8813-108599 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 131 -Paragraph 27, 28 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
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