Annual report pursuant to Section 13 and 15(d)

EMPLOYEE BENEFIT AND STOCK COMPENSATION PLANS (Details 3)

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EMPLOYEE BENEFIT AND STOCK COMPENSATION PLANS (Details 3) (USD $)
In Thousands, unless otherwise specified
 12 Months Ended
Dec. 31, 2011
Dec. 31, 2010
Dec. 31, 2009
Fair value of plan assets and future benefit payments      
Total $ 165,044 $ 171,457 $ 144,644
Net Realized and Unrealized Gains/(Losses) (2,520) 25,039  
Balance at the end of the period 165,044 171,457 144,644
Estimated future benefit payments      
2012 9,088    
2013 9,637    
2014 10,218    
2015 10,819    
2016 11,375    
Thereafter 62,715    
Total 113,852    
Level 3
      
Fair value of plan assets and future benefit payments      
Total 7,092 7,671 27,041
Net Realized and Unrealized Gains/(Losses) 833 2,308  
Net Purchases, Issuances and Settlements (1,412) (12,799)  
Net Transfers in to/(Out of) Level 3   (8,879)  
Balance at the end of the period 7,092 7,671 27,041
Real Estate
      
Fair value of plan assets and future benefit payments      
Total 7,092 6,248 5,209
Balance at the end of the period 7,092 6,248 5,209
Real Estate | Level 3
      
Fair value of plan assets and future benefit payments      
Total 7,092 6,248  
Net Realized and Unrealized Gains/(Losses) 844 1,039  
Balance at the end of the period 7,092 6,248  
Alternative Investments
      
Fair value of plan assets and future benefit payments      
Total   1,423 21,832
Balance at the end of the period   1,423 21,832
Alternative Investments | Level 3
      
Fair value of plan assets and future benefit payments      
Total   1,423  
Net Realized and Unrealized Gains/(Losses) (11) 1,269  
Net Purchases, Issuances and Settlements (1,412) (12,799)  
Net Transfers in to/(Out of) Level 3   (8,879)  
Balance at the end of the period   $ 1,423