Covered Assets and Indemnification Asset (Allowance And Recorded Investment By Covered Loan Portfolio) (Details) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2013		Mar. 31, 2013	Dec. 31, 2012	Jun. 30, 2012		Mar. 31, 2012	Dec. 31, 2011
Financing Receivable, Allowance for Credit Losses [Line Items]
Financing Receivable, Allowance for Credit Losses, Acquired with Deteriorated Credit Quality	$ 13,509	[1]			$ 11,742	[1]
Collectively evaluated for impairment	858	[2]			1,235	[2]
Total	14,367		18,221	18,275	12,977		12,635	14,320
Covered loans and leases, Loans acquired with deteriorated credit quality	413,556	[1]			539,821	[1]
Financing Receivable Covered Collectively Evaluated For Impairment	19,870	[2]			27,119	[2]
Total	433,426			495,353	566,940
Commercial Real Estate [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Financing Receivable, Allowance for Credit Losses, Acquired with Deteriorated Credit Quality	8,497	[1]			6,926	[1]
Collectively evaluated for impairment	374	[2]			535	[2]
Total	8,871		12,374	12,129	7,461		8,298	8,939
Covered loans and leases, Loans acquired with deteriorated credit quality	348,013	[1]			449,784	[1]
Financing Receivable Covered Collectively Evaluated For Impairment	2,876	[2]			2,905	[2]
Total	350,889				452,689
Term & Multifamily [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Total	334,584			378,009
Construction & Development [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Total	8,139			11,711
Residential Development [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Total	8,166			9,794
Commercial [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Financing Receivable, Allowance for Credit Losses, Acquired with Deteriorated Credit Quality	4,124	[1]			3,936	[1]
Collectively evaluated for impairment	388	[2]			611	[2]
Total	4,512		4,867	4,980	4,547		3,275	3,964
Covered loans and leases, Loans acquired with deteriorated credit quality	21,935	[1]			34,690	[1]
Financing Receivable Covered Collectively Evaluated For Impairment	9,475	[2]			16,658	[2]
Total	31,410				51,348
Term [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Total	20,748			23,524
LOC & Other [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Total	10,662			14,997
Residential [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Financing Receivable, Allowance for Credit Losses, Acquired with Deteriorated Credit Quality	758	[1]			619	[1]
Collectively evaluated for impairment	50	[2]			45	[2]
Total	808		685	804	664		740	991
Covered loans and leases, Loans acquired with deteriorated credit quality	41,416	[1]			51,243	[1]
Financing Receivable Covered Collectively Evaluated For Impairment	5,040	[2]			4,886	[2]
Total	46,456				56,129
Mortgage [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Total	25,075			27,825
Home Equity Loans & Lines [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Total	21,381			23,442
Consumer & Other [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Financing Receivable, Allowance for Credit Losses, Acquired with Deteriorated Credit Quality	130	[1]			261	[1]
Collectively evaluated for impairment	46	[2]			44	[2]
Total	176		295	362	305		322	426
Covered loans and leases, Loans acquired with deteriorated credit quality	2,192	[1]			4,104	[1]
Financing Receivable Covered Collectively Evaluated For Impairment	2,479	[2]			2,670	[2]
Total	$ 4,671			$ 6,051	$ 6,774

[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.