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Debt (Tables)
 12 Months Ended
Dec. 31, 2011
Debt [Abstract]  
Summary Of Debt
                 
     December 31,  
     2011      2010  
     (In thousands)  

Receivables credit facility, effective interest rate of 1.15% and 1.56% as of December 31, 2011 and 2010, respectively, due October 11, 2014

    $ 109,000       $ 109,000   

Senior credit facility —

Term loan, effective interest rate of 2.08% as of December 31, 2011, due October 11, 2016

      150,000         —   

Senior notes, net of discount of $514 and $857 as of December 31, 2011 and 2010, respectively, interest at 5.75% payable semi-annually, due August 1, 2013

      399,486         399,143   

Senior notes, net of discount of $38 and $44 as of December 31, 2011 and 2010, respectively, interest at 6.50% payable semi-annually, due March 15, 2018

      149,962         149,956   
    

 

 

     

 

 

  

Total

      808,448         658,099   

Less current portion

      15,000         109,000   
    

 

 

     

 

 

  

Total long-term debt

    $ 793,448       $ 549,099   
    

 

 

     

 

 

  
Additional Information On Variable Rate Debt
                                 
     Reference Interest Rate     Applicable Margin  
     December 31,     December 31,  
     2011     2010     2011     2010  

Receivables credit facility

      0.30 %      0.26 %      0.85 %      1.30 % 

Senior credit facility

      0.58 %      —        1.50 %      —   
Summary Of Drawings Under Revolving Credit Facilities
                         
     Commitments      Utilized      Available  
     (In thousands)  

Receivables credit facility

    $ 200,000       $ 109,000       $ 91,000   

Senior revolving credit facility

      250,000         14,312         235,688   
    

 

 

     

 

 

     

 

 

  
     $ 450,000       $ 123,312       $ 326,688