Quarterly report pursuant to Section 13 or 15(d)

Goodwill and Other Intangible Assets (Details)

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Goodwill and Other Intangible Assets (Details) (USD $)
In Thousands, unless otherwise specified
 3 Months Ended 9 Months Ended
Sep. 30, 2012
Sep. 30, 2012
Dec. 31, 2011
Goodwill by business segment      
Beginning Balance   $ 444,268  
Adjustments / Reallocation of goodwill   0  
Ending Balance 444,268 444,268  
Summary of other intangible assets      
Total other intangible assets, gross carrying amount 509,987 509,987 506,584
Total other intangible assets, accumulated amortization (366,183) (366,183) (331,282)
Total other intangible assets, net of carrying value 143,804 143,804 175,302
Estimated amortization expense of other intangible assets      
2012 11,967    
2013 41,083    
2014 36,368    
2015 20,207    
2016 6,993    
2017 6,511    
Amount of core deposit intangible related to Fidelity Bank acquisition 3,403 3,403 0
Core deposit intangible [Member]
      
Summary of other intangible assets      
Total other intangible assets, gross carrying amount 380,249 [1] 380,249 [1] 376,846
Total other intangible assets, accumulated amortization (292,329) (292,329) (263,410)
Total other intangible assets, net of carrying value 87,920 87,920 113,436
Customer relationship [Member]
      
Summary of other intangible assets      
Total other intangible assets, gross carrying amount 104,574 104,574 104,574
Total other intangible assets, accumulated amortization (48,973) (48,973) (43,052)
Total other intangible assets, net of carrying value 55,601 55,601 61,522
Other [Member]
      
Summary of other intangible assets      
Total other intangible assets, gross carrying amount 25,164 25,164 25,164
Total other intangible assets, accumulated amortization (24,881) (24,881) (24,820)
Total other intangible assets, net of carrying value 283 283 344
Regional & Commercial Banking [Member]
      
Goodwill by business segment      
Beginning Balance   16,169  
Adjustments / Reallocation of goodwill   0  
Ending Balance 16,169 16,169  
WGH [Member]
      
Goodwill by business segment      
Beginning Balance   98,951  
Adjustments / Reallocation of goodwill   0  
Ending Balance 98,951 98,951  
AFCRE [Member]
      
Goodwill by business segment      
Beginning Balance   0  
Adjustments / Reallocation of goodwill   0  
Ending Balance 0 0  
Treasury Other [Member]
      
Goodwill by business segment      
Beginning Balance   42,324  
Adjustments / Reallocation of goodwill   0  
Ending Balance 42,324 42,324  
Retail & Business Banking [Member]
      
Goodwill by business segment      
Beginning Balance   286,824  
Adjustments / Reallocation of goodwill   0  
Ending Balance $ 286,824 $ 286,824  
[1] Includes $3,403 thousand related to the FDIC-assisted acquisition of Fidelity Bank on March 30, 2012.