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Basis Of Presentation And Accounting Policies Summary of Significant Accounting Policies (Policies)
6 Months Ended
Jun. 30, 2012
Basis Of Presentation And Accounting Policies [Abstract]  
Nonperforming Assets
Nonperforming Assets
In the second quarter 2012, the Corporation modified its residential mortgage and home equity nonaccrual policy. Under the new policy, residential mortgage and home equity loans are generally placed on nonaccrual status once they become 90 days past due (previously no later than 180 days past due). In addition, certain current junior lien home equity loans where the Corporation also holds and services the senior position are placed on nonaccrual status when full collection of the senior position is in doubt.