Covered Assets And Indemnification Asset (Activity In The Covered Allowance For Loan And Lease Losses) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010
Balance, end of period	$ 0
Covered loans and leases [Member]
Balance, beginning of period	2,721
Charge-offs	(6,686)	(2,705)
Recoveries	2,144	275
Provision	16,141	5,151
Balance, end of period	14,320	2,721
Commercial Real Estate [Member] | Covered loans and leases [Member]
Balance, beginning of period	2,465
Charge-offs	(3,177)	(2,439)
Recoveries	1,348	11
Provision	8,303	4,893
Balance, end of period	8,939	2,465
Commercial [Member] | Covered loans and leases [Member]
Balance, beginning of period	176
Charge-offs	(660)	(266)
Recoveries	512	263
Provision	3,936	179
Balance, end of period	3,964	176
Residential [Member] | Covered loans and leases [Member]
Balance, beginning of period	56
Charge-offs	(1,657)
Recoveries	142
Provision	2,450	56
Balance, end of period	991	56
Consumer & Other [Member] | Covered loans and leases [Member]
Balance, beginning of period	24
Charge-offs	(1,192)
Recoveries	142	1
Provision	1,452	23
Balance, end of period	$ 426	$ 24