Allowance For Loan Losses, Allowance For Losses On Lending-Related Commitments And Impaired Loans (Summary Of Activity In The Allowance For Covered Loan Losses) (Details) (USD $) In Thousands	3 Months Ended	6 Months Ended
	Jun. 30, 2011	Jun. 30, 2011
Allowance For Loan Losses, Allowance For Losses On Lending-Related Commitments And Impaired Loans
Balance at beginning of period	$ 4,844
FDIC loss share agreements	2,599	7,443
Benefit attributable to FDIC loss share agreements	(2,078)	(5,954)
Net provision for covered loan losses	521	1,489
Increase in FDIC indemnification asset	2,076	5,952
Recoveries of loans charged-off	2	2
Net charge-offs	2	2
Balance at end of period	$ 7,443	$ 7,443