Loans And Allowance For Loan Losses (Summary Of Composition Of Non-Accrual Loans By Portfolio Segment) (Details) (USD $) In Thousands	Sep. 30, 2011	Dec. 31, 2010
Mortgage Loans on Real Estate [Line Items]
Non-accrual loans	$ 98,185	$ 120,985
Commercial - Originated [Member]
Mortgage Loans on Real Estate [Line Items]
Non-accrual loans	35,046	42,077
Commercial - Restructured [Member]
Mortgage Loans on Real Estate [Line Items]
Non-accrual loans	4,410	8,302
Commercial - Covered [Member]
Mortgage Loans on Real Estate [Line Items]
Non-accrual loans	32,869	41,917
Residential Mortgages - Originated [Member]
Mortgage Loans on Real Estate [Line Items]
Non-accrual loans	19,401	18,290
Residential Mortgages - Restructured [Member]
Mortgage Loans on Real Estate [Line Items]
Non-accrual loans		409
Residential Mortgages - Covered [Member]
Mortgage Loans on Real Estate [Line Items]
Non-accrual loans	1,237	3,199
Direct Consumer - Originated [Member]
Mortgage Loans on Real Estate [Line Items]
Non-accrual loans	2,565	4,862
Direct Consumer - Acquired [Member]
Mortgage Loans on Real Estate [Line Items]
Non-accrual loans	1,061
Direct Consumer - Covered [Member]
Mortgage Loans on Real Estate [Line Items]
Non-accrual loans		170
Finance Company - Originated [Member]
Mortgage Loans on Real Estate [Line Items]
Non-accrual loans	$ 1,596	$ 1,759