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Financial Instruments (Tables)
9 Months Ended
Sep. 30, 2011
Financial Instruments 
Carrying And Estimated Fair Values Of Financial Instruments
     September 30, 2011     December 31, 2010  
     Carrying
Amount		     Fair Value     Carrying
Amount		     Fair Value  
(In thousands)                (Audited)  

Cash and cash equivalents

    $ 40,117      $ 40,117      $ 196,556      $ 196,556   

Long-term debt —

         

5.75% senior notes

      (399,400 )      (424,304 )      (399,143 )      (430,464 ) 

6.50% senior notes

      (149,960 )      (165,717 )      (149,956 )      (158,800 ) 

Receivables credit facility

      (109,000 )      (109,000 )      (109,000 )      (109,000 ) 

Capital lease obligations

      (22,004 )      (22,004 )      (22,502 )      (22,502 )