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Goodwill and Intangible Assets
6 Months Ended
Jun. 30, 2011
Goodwill and Intangible Assets [Abstract]  
Goodwill and Intangible Assets
6. Goodwill and Intangible Assets
Goodwill
          Goodwill totaled $460.0 million at June 30, 2011, December 31, 2010, and June 30, 2010. Goodwill of $272.1 million, which reflects prior period purchase accounting adjustments, was acquired in the second quarter of 2010 in the FDIC assisted acquisition of Midwest.
          The Corporation expects $43.5 million of the $48.3 million of goodwill acquired in the First Bank branches acquisition and all of the goodwill acquired in the Midwest acquisition to be deductible for tax purposes.
          Goodwill was not recognized in the 2010 acquisition of George Washington. These acquisitions are more fully described in Note 2 (Business Combinations).
Other Intangible Assets
          The following tables show the gross carrying amount and the amount of accumulated amortization of intangible assets subject to amortization.
                         
    June 30, 2011  
    Gross Carrying     Accumulated     Net Carrying  
    Amount     Amortization     Amount  
Core deposit intangibles
  $ 16,760     $ (7,850 )   $ 8,910  
Non-compete covenant
    102       (38 )     64  
Lease intangible
    617       (266 )     351  
 
                 
 
  $ 17,479     $ (8,154 )   $ 9,325  
 
                 
                         
    December 31, 2010  
    Gross Carrying     Accumulated     Net Carrying  
    Amount     Amortization     Amount  
Core deposit intangibles
  $ 16,760     $ (6,871 )   $ 9,889  
Non-compete covenant
    102       (25 )     77  
Lease covenant
    617       (172 )     445  
 
                 
 
  $ 17,479     $ (7,068 )   $ 10,411  
 
                 
                         
    June 30, 2010  
    Gross Carrying     Accumulated     Net Carrying  
    Amount     Amortization     Amount  
Core deposit intangibles
  $ 16,760     $ (4,966 )   $ 11,794  
Non-compete covenant
    102       (13 )     89  
Lease covenant
    617       (78 )     539  
 
                 
 
  $ 17,479     $ (5,057 )   $ 12,422  
 
                 
          In the quarter ended June 30, 2010, a core deposit intangible asset of $7.4 million was recognized as a result of the Midwest acquisition. Core deposit intangible assets are amortized on an accelerated basis over their useful lives of ten years.
          This acquisition is more fully described in Note 2 (Business Combinations).
          Intangible asset amortization expense was $0.5 million and $0.7 million for the three months ended June 30, 2011 and 2010, respectively. Estimated amortization expense for each of the next five years is as follows: 2011 — $1.1 million; 2012 — $1.9 million; 2013 — $1.2 million; 2014 — $1.1 million; and 2015 — $1.0 million.