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Inventories
3 Months Ended
Mar. 31, 2012
Inventories [Abstract]  
Inventories

6. Inventories

Inventories are comprised of the following (in thousands):

 

     March 31,
2012
    December 31,
2011
 

Inventories-gross

   $ 117,042      $ 110,087   

Impaired inventory

     (31,406     (31,360
  

 

 

   

 

 

 
     85,636        78,727   

Inventories included in other assets

     (1,426     (1,426
  

 

 

   

 

 

 
   $ 84,210      $ 77,301