Loans And Allowance For Loan Losses (Total Average Impaired Loans) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Loans And Allowance For Loan Losses [Line Items]
Non-accrual loans	$ 47,867	$ 47,167
Restructured loans (accruing)	59,824	65,933
Total	107,691	113,100
Commercial Portfolio Segment [Member]
Loans And Allowance For Loan Losses [Line Items]
Non-accrual loans	40,302	41,108
Restructured loans (accruing)	38,393	38,642
Total	78,695	79,750
Personal Banking Portfolio Segment [Member]
Loans And Allowance For Loan Losses [Line Items]
Non-accrual loans	7,565	6,059
Restructured loans (accruing)	21,431	27,291
Total	$ 28,996	$ 33,350