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
 9 Months Ended
Sep. 30, 2011
Dec. 31, 2010
Sep. 30, 2010
Goodwill by business segment      
Beginning Balance $ 444,268   $ 444,268
Other adjustments 0    
Ending Balance 444,268   444,268
Summary of other intangible assets      
Total other intangible assets, gross carrying amount 506,584 506,584 506,584
Total other intangible assets, accumulated amortization (318,107) (277,964) (262,918)
Total other intangible assets, net of carrying value 188,477 228,620 243,666
Estimated amortization expense of other intangible assets      
2011 13,188    
2012 46,075    
2013 40,511    
2014 35,858    
2015 19,758    
2016 6,606    
Regional & Commercial Banking [Member]
      
Goodwill by business segment      
Beginning Balance 16,169    
Other adjustments 0    
Ending Balance 16,169    
WGH [Member]
      
Goodwill by business segment      
Beginning Balance 98,951    
Other adjustments 0    
Ending Balance 98,951    
AFCRE [Member]
      
Goodwill by business segment      
Beginning Balance 0    
Other adjustments 0    
Ending Balance 0    
Treasury Other [Member]
      
Goodwill by business segment      
Beginning Balance 42,324    
Other adjustments 0    
Ending Balance 42,324    
Retail & Business Banking [Member]
      
Goodwill by business segment      
Beginning Balance 286,824    
Other adjustments 0    
Ending Balance 286,824    
Core deposit intangible [Member]
      
Summary of other intangible assets      
Total other intangible assets, gross carrying amount 376,846 376,846 376,846
Total other intangible assets, accumulated amortization (252,397) (219,311) (206,658)
Total other intangible assets, net of carrying value 124,449 157,535 170,188
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 (40,993) (34,751) (32,579)
Total other intangible assets, net of carrying value 63,581 69,823 71,995
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 (24,717) (23,902) (23,681)
Total other intangible assets, net of carrying value $ 447 $ 1,262 $ 1,483