Covered Assets And Indemnification Asset (Allowance And Recorded Investment By Covered Loan Portfolio) (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012		Dec. 31, 2011		Dec. 31, 2010
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans acquired with deteriorated credit quality	$ 17,385	[1]	$ 13,207	[1]
Collectively evaluated for impairment	890	[2]	1,113	[2]
Total	18,275		14,320		2,721
Covered loans and leases, Loans acquired with deteriorated credit quality	468,608	[1]	608,392	[1]
Collectively evaluated for impairment	26,745	[2]	28,379	[2]
Total	495,353		636,771
Commercial Real Estate [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans acquired with deteriorated credit quality	11,756	[1]	8,491	[1]
Collectively evaluated for impairment	373	[2]	448	[2]
Total	12,129		8,939		2,465
Covered loans and leases, Loans acquired with deteriorated credit quality	393,464	[1]	503,575	[1]
Collectively evaluated for impairment	6,050	[2]	3,062	[2]
Total	399,514		506,637
Commercial [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans acquired with deteriorated credit quality	4,559	[1]	3,366	[1]
Collectively evaluated for impairment	421	[2]	598	[2]
Total	4,980		3,964		176
Covered loans and leases, Loans acquired with deteriorated credit quality	25,402	[1]	39,427	[1]
Collectively evaluated for impairment	13,119	[2]	18,149	[2]
Total	38,521		57,576
Residential [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans acquired with deteriorated credit quality	755	[1]	955	[1]
Collectively evaluated for impairment	49	[2]	36	[2]
Total	804		991		56
Covered loans and leases, Loans acquired with deteriorated credit quality	46,382	[1]	59,980	[1]
Collectively evaluated for impairment	4,885	[2]	4,608	[2]
Total	51,267		64,588
Consumer & Other [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans acquired with deteriorated credit quality	315	[1]	395	[1]
Collectively evaluated for impairment	47	[2]	31	[2]
Total	362		426		24
Covered loans and leases, Loans acquired with deteriorated credit quality	3,360	[1]	5,410	[1]
Collectively evaluated for impairment	2,691	[2]	2,560	[2]
Total	$ 6,051		$ 7,970

[1] In accordance with ASC 310-30, the valuation allowance is netted against the carrying value of the covered loan and lease balance.

[2] The allowance on covered loan and lease losses includes an allowance on covered loan advances on acquired loans subsequent to acquisition.