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Acquisitions (Tables)
 12 Months Ended
Dec. 31, 2012
Acquisitions [Abstract]  
Summary of allocation of the purchase price for all acquisitions

                         
    2012     2011     2010  
    (In thousands)  

Goodwill

   $ 3,043     $ 6,390     $ 40,703  

Intangible assets with definite lives (1)

     —         1,642       8,148  

Net assets (liabilities) (2)

     7       (16 )     (3,580 )
   

 

 

    

 

 

    

 

 

  

Total (3)

   $ 3,050     $ 8,016     $ 45,271  
   

 

 

    

 

 

    

 

 

  

  

 

(1) The weighted average life of acquired intangible assets during 2011 and 2010 was 2.8 years, and 6.2 years, respectively.
(2) Includes cash acquired of $0 million, $0.1 million and $2 million during 2012, 2011 and 2010, respectively.
(3) All outstanding purchase contingencies have been paid.