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DEBT (Table)
12 Months Ended
Dec. 31, 2012
DebtInstrumentsAbstract  
ScheduleOfDebtTableTextBlock
(In thousands)   2012  2012  2011  2011
  Carrying Value Estimated Fair Value Carrying Value Estimated Fair Value
Industrial revenue bond, due 2023 $ 8,400 $ 8,400 $ 9,004 $ 9,004
Revolving credit agreement, due 2017   286,800   286,800   -   -
5.74% Senior notes due 2013   125,011   128,198   125,024   134,982
5.51% Senior notes due 2017   150,000   168,491   150,000   172,871
3.84% Senior notes due 2021   100,677   100,677   100,000   101,886
4.24% Senior notes due 2026   198,581   198,581   200,000   204,965
Other debt   10,746   10,746   2,402   2,402
Total debt   880,215   901,893   586,430   626,110
Less: current portion of long-term debt and short-term debt   128,225   128,225   2,502   2,502
Total long-term debt $ 751,990 $ 773,668 $ 583,928 $ 623,608
ScheduleOfMaturitiesOfLongTermDebtTableTextBlock
(In thousands)   
2013 $ 128,225
2014   7,483
2015   34
2016   14
2017   436,800
Thereafter   308,400
Total $ 880,956