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Goodwill and other intangible assets
9 Months Ended
Sep. 30, 2011
Goodwill and other intangible assets [Abstract] 
Goodwill and other intangible assets
Note 5 — Goodwill and other intangible assets
          The following is a summary of our goodwill and other intangible assets for our two reportable segments Pharmacy Benefit Management (“PBM”) and EM:
                                                 
    September 30, 2011     December 31, 2010  
    Gross             Net     Gross             Net  
    Carrying     Accumulated     Carrying     Carrying     Accumulated     Carrying  
(in millions)   Amount     Amortization     Amount     Amount     Amortization     Amount  
 
Goodwill
                                               
PBM(1)
  $ 5,512.3     $ (107.4 )   $ 5,404.9     $ 5,513.1     $ (107.4 )   $ 5,405.7  
EM(1)
    80.5             80.5       80.5             80.5  
         
 
  $ 5,592.8     $ (107.4 )   $ 5,485.4     $ 5,593.6     $ (107.4 )   $ 5,486.2  
         
 
                                               
Other intangible assets
                                               
PBM
                                               
Customer contracts
  $ 2,018.4     $ (457.5 )   $ 1,560.9     $ 2,018.7     $ (346.4 )   $ 1,672.3  
Other (2)
    96.7       (23.9 )     72.8       20.8       (5.0 )     15.8  
         
 
    2,115.1       (481.4 )     1,633.7       2,039.5       (351.4 )     1,688.1  
         
 
                                               
EM
                                               
Customer relationships
    68.4       (37.0 )     31.4       68.4       (32.2 )     36.2  
Other
    0.7             0.7       0.7             0.7  
         
 
    69.1       (37.0 )     32.1       69.1       (32.2 )     36.9  
         
Total other intangible assets
  $ 2,184.2     $ (518.4 )   $ 1,665.8     $ 2,108.6     $ (383.6 )   $ 1,725.0  
         
 
(1)   As discussed in Note 11 — Segment Information, during the third quarter of 2011 we reorganized our FreedomFP line of business from our EM segment into our PBM segment. All amounts at December 31, 2010 have been restated for comparability.
 
(2)   Changes in other intangible assets are a result of the capitalization of $65.0 million of deferred financing fees related to the bridge facility during the third quarter of 2011 and the capitalization of $10.9 million of deferred financing fees related to the issuance of the 2016 Senior Notes during the second quarter of 2011 (see Note 7 — Financing).
          The aggregate amount of amortization expense of other intangible assets for our continuing operations was $55.3 million and $40.1 million for the three months ended September 30, 2011 and 2010, respectively and $135.0 million and $120.1 million for the nine months ended September 30, 2011 and 2010, respectively. In accordance with applicable accounting guidance, amortization for customer contracts related to our agreement to provide PBM services to members of the affiliated health plans of WellPoint has been included as an offset to revenues in the amount of $28.5 million for the three months ended September 30, 2011 and 2010 and $85.5 million for the nine months ended September 30, 2011 and 2010. The future aggregate amount of amortization expense of other intangible assets for our continuing operations is expected to be approximately $197.8 million for 2011, $187.8 million for 2012, $159.1 million for 2013, $153.5 million for 2014 and $135.3 million for 2015. The weighted average amortization period of intangible assets subject to amortization is 14 years in total, and by major intangible class is 5 to 20 years for customer-related intangibles and nine months to 10 years for other intangible assets.
          A summary of the change in the net carrying value of goodwill by business segment is shown in the following table:
                         
(in millions)   PBM     EM     Total  
 
Balance at December 31, 2010
  $ 5,405.7     $ 80.5     $ 5,486.2  
Foreign currency translation
    (0.8 )           (0.8 )
 
                 
Balance at September 30, 2011
  $ 5,404.9     $ 80.5     $ 5,485.4