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Supplementary Balance Sheet Detail (Tables) | 12 Months Ended
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Dec. 31, 2013
Balance Sheet Related Disclosures [Abstract] |
Schedule Of Amounts Recognized In Balance Sheet |
| At December 31,
2012 |  | 2013
| (Dollars in thousands)
Inventories: |  |  |
Raw materials and supplies | $ | 230,057 |  |  | $ | 184,420 |
Work in process | 213,948 |  |  | 245,160 |
Finished goods | 73,293 |  |  | 78,446 |
| 517,298 |  |  | 508,026 |
Reserves | (4,233 | ) |  | (17,612 | )
| $ | 513,065 |  |  | $ | 490,414 |
Property, plant and equipment: |  |  |
Land and improvements | $ | 36,744 |  |  | $ | 37,416 |
Buildings | 182,838 |  |  | 196,802 |
Machinery and equipment and other | 1,172,045 |  |  | 1,278,655 |
Construction in progress | 140,732 |  |  | 76,007 |
| $ | 1,532,359 |  |  | $ | 1,588,880 |
Other accrued liabilities: |  |  |
Payrolls (including incentive programs) | $ | 7,461 |  |  | $ | 9,330 |
Customer prepayments | 7,594 |  |  | 9,599 |
Employee compensation and benefits | 10,335 |  |  | 10,136 |
Other | 25,563 |  |  | 11,874 |
| $ | 50,953 |  |  | $ | 40,939 |
Other long term obligations: |  |  |
Postretirement benefits | $ | 30,465 |  |  | $ | 24,852 |
Pension and related benefits | 73,202 |  |  | 54,173 |
Other | 21,338 |  |  | 18,922 |
| $ | 125,005 |  |  | $ | 97,947 |
Schedule Of Analysis Of The Allowance For Doubtful Accounts |
| At December 31,
2011 |  | 2012 |  | 2013
| (Dollars in thousands)
Balance at beginning of year | $ | 3,892 |  |  | $ | 4,153 |  |  | $ | 7,573 |
Additions | 1,438 |  |  | 5,161 |  |  | 2,914 |
Deductions | (1,177 | ) |  | (1,741 | ) |  | (3,769 | )
Balance at end of year | $ | 4,153 |  |  | $ | 7,573 |  |  | $ | 6,718 |
Schedule Of Inventory Reserves |
| At December 31,
2011 |  | 2012 |  | 2013
| (Dollars in thousands)
Balance at beginning of year | $ | 2,716 |  |  | $ | 4,709 |  |  | $ | 4,233 |
Additions | 4,154 |  |  | 4,052 |  |  | 19,878 |
Deductions | (2,161 | ) |  | (4,528 | ) |  | (6,499 | )
Balance at end of year | $ | 4,709 |  |  | $ | 4,233 |  |  | $ | 17,612 |
Additions to the reserve included $9.1 million related to the rationalizations discussed in Note 2. The remaining increase in inventory reserves resulted from decreased pricing for certain products in certain markets.

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- Definition Tabular disclosure of the amounts that are recognized in the balance sheet (or statement of financial position) for pension plans and/or other employee benefit plans, showing separately the assets and current and noncurrent liabilities (if applicable) recognized. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=21915506&loc=d3e1928-114920 + Details
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