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Other Assets And Deferred Charges (Tables)
12 Months Ended
Dec. 31, 2011
Other Assets And Deferred Charges [Abstract]  
Schedule Of Other Assets And Deferred Charges
     December 31  
     2011      2010  

Interest rate swap deposits

   $ 36,041       $ 23,175   

Innospec Inc. settlement receivable

     10,030         0   

Deferred financing costs, net of amortization

     6,795         6,165   

Asbestos insurance receivables

     6,345         8,489   

Foundry Park I deferred leasing costs

     4,597         4,997   

Other

     9,811         6,067   
  

 

 

    

 

 

 
   $ 73,619       $ 48,893