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PROPERTY, PLANT AND EQUIPMENT
12 Months Ended
Dec. 31, 2011
PROPERTY, PLANT AND EQUIPMENT [Abstract]  
PROPERTY, PLANT AND EQUIPMENT
(8) 
PROPERTY, PLANT AND EQUIPMENT
 
At December 31, 2011 and 2010, property, plant, and equipment consisted of the following:
 
   
Depreciable Lives
  
2011
  
2010
 
           
Land
  -  $19,446  $20,200 
Improvements to land and buildings
 
10-25 years
   73,432   53,655 
Transportation equipment
 
3-7 years
   1,848   1,816 
Storage equipment
 
5-20 years
   68,297   62,372 
Marine vessels
 
4-25 years
   228,043   226,376 
Operating equipment
 
3-20 years
   265,314   253,271 
Furniture, fixtures and other equipment
 
3-20 years
   2,327   1,656 
Construction in progress
      52,345   13,110 
       $711,052  $632,456 

Depreciation expense for the year ended December 31, 2011, 2010, and 2009 was $41,437, $38,085, and $37,027, respectively, which includes amortization of fixed assets acquired under capital lease obligations of $280, $280, and $116 for 2011, 2010, and 2009, respectively.  Gross assets under capital leases were $7,764 at December 31, 2011 and 2010.  Accumulated amortization associated with capital leases was $675 and $396 at December 31, 2011 and 2010, respectively.