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Other Current Liabilities
 12 Months Ended
Dec. 31, 2011
Other Current Liabilities [Abstract]  
Other Current Liabilities

(10)    Other Current Liabilities

Other current liabilities at December 31, 2011 and 2010 consist of:

 

     2011      2010  
     (In thousands)  

Deferred revenue

    $ 41,395       $ 39,256   

Other current liabilities

      12,921         12,245   
  

 

 

     

 

 

  
   $ 54,316       $ 51,501