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Other noncurrent assets, net (Tables)
3 Months Ended
Mar. 31, 2013
Deferred Costs Capitalized Prepaid And Other Assets Disclosure [Abstract]  
Summary of Intangible and Other Noncurrent Assets
     December 31,
2012
     March 31,
2013
 
     (In thousands)  

Assets held for sale

   $ 1,965       $ 430   

Restricted cash

     1,694         1,688   

Other

     195         137   
  

 

 

    

 

 

 

Total

   $ 3,854       $ 2,255