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Goodwill And Other Intangible Assets (Tables)
9 Months Ended
Sep. 30, 2011
Goodwill And Other Intangible Assets 
Schedule Of Changes In The Carrying Amount Of Goodwill
    Community        
(dollars in thousands)   Banking   Other   Total
Balance, January 1, 2011 $ 128,011 $ 39,873 $ 167,884
Goodwill acquired during the period   97,209   892   98,101
Balance, September 30, 2011 $ 225,220 $ 40,765 $ 265,985
 
Balance, January 1, 2010 $ 128,011 $ 39,873 $ 167,884
Goodwill acquired during the period   0   0   0
Balance, September 30, 2010 $ 128,011 $ 39,873 $ 167,884
Schedule Of Gross Carrying Amount And Accumulated Amortization Of Other Intangible Assets
        Accumulated      
    Gross Carrying   Amortization     Net Carrying
(dollars in thousands)   Amount   and Impairment     Amount
September 30, 2011              
Amortized intangible assets:              
Core deposit $ 39,265 $ (18,539 ) $ 20,726
Customer business relationships   25,611   (15,867 )   9,744
Customer trust relationships   3,621   (334 )   3,287
Customer loan relationships   4,413   (1,872 )   2,541
Total intangible assets $ 72,910 $ (36,612 ) $ 36,298
December 31, 2010              
Amortized intangible assets:              
Core deposit $ 26,810 $ (14,646 ) $ 12,164
Customer business relationships   25,753   (14,581 )   11,172
Customer loan relationships   4,413   (1,571 )   2,842
Total intangible assets $ 56,976 $ (30,798 ) $ 26,178
Schedule Of Estimated Amortization Expense For Future Years
(dollars in thousands)    
2011 remaining $ 2,224
2012   7,995
2013   6,724
2014   5,452
2015   4,372
Thereafter   9,531
Total $ 36,298