Covered Assets And Indemnification Asset (Internal Risk Rating By Loan Class) (Details) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2012	Dec. 31, 2011
Financing Receivable, Recorded Investment [Line Items]
Covered loans, by credit rating	$ 515,045	$ 622,451
Pass/Watch [Member]
Financing Receivable, Recorded Investment [Line Items]
Covered loans, by credit rating	348,273	434,622
Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Covered loans, by credit rating	51,671	64,842
Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Covered loans, by credit rating	89,128	97,642
Doubtful [Member]
Financing Receivable, Recorded Investment [Line Items]
Covered loans, by credit rating	25,973	25,345
Loss [Member]
Financing Receivable, Recorded Investment [Line Items]
Covered loans, by credit rating
Term & Multifamily [Member]
Financing Receivable, Recorded Investment [Line Items]
Covered loans, by credit rating	398,031	468,747
Term & Multifamily [Member] | Pass/Watch [Member]
Financing Receivable, Recorded Investment [Line Items]
Covered loans, by credit rating	263,752	329,273
Term & Multifamily [Member] | Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Covered loans, by credit rating	46,925	58,610
Term & Multifamily [Member] | Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Covered loans, by credit rating	70,227	68,521
Term & Multifamily [Member] | Doubtful [Member]
Financing Receivable, Recorded Investment [Line Items]
Covered loans, by credit rating	17,127	12,343
Term & Multifamily [Member] | Loss [Member]
Financing Receivable, Recorded Investment [Line Items]
Covered loans, by credit rating
Construction & Development [Member]
Financing Receivable, Recorded Investment [Line Items]
Covered loans, by credit rating	11,217	13,105
Construction & Development [Member] | Pass/Watch [Member]
Financing Receivable, Recorded Investment [Line Items]
Covered loans, by credit rating	1,975	1,552
Construction & Development [Member] | Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Covered loans, by credit rating	208	1,410
Construction & Development [Member] | Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Covered loans, by credit rating	4,906	6,733
Construction & Development [Member] | Doubtful [Member]
Financing Receivable, Recorded Investment [Line Items]
Covered loans, by credit rating	4,128	3,410
Construction & Development [Member] | Loss [Member]
Financing Receivable, Recorded Investment [Line Items]
Covered loans, by credit rating
Residential Development [Member]
Financing Receivable, Recorded Investment [Line Items]
Covered loans, by credit rating	9,005	15,794
Residential Development [Member] | Pass/Watch [Member]
Financing Receivable, Recorded Investment [Line Items]
Covered loans, by credit rating		1,187
Residential Development [Member] | Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Covered loans, by credit rating	398	405
Residential Development [Member] | Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Covered loans, by credit rating	6,878	8,394
Residential Development [Member] | Doubtful [Member]
Financing Receivable, Recorded Investment [Line Items]
Covered loans, by credit rating	1,729	5,808
Residential Development [Member] | Loss [Member]
Financing Receivable, Recorded Investment [Line Items]
Covered loans, by credit rating
Term [Member]
Financing Receivable, Recorded Investment [Line Items]
Covered loans, by credit rating	21,899	31,139
Term [Member] | Pass/Watch [Member]
Financing Receivable, Recorded Investment [Line Items]
Covered loans, by credit rating	10,230	18,006
Term [Member] | Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Covered loans, by credit rating	3,658	1,661
Term [Member] | Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Covered loans, by credit rating	6,049	8,244
Term [Member] | Doubtful [Member]
Financing Receivable, Recorded Investment [Line Items]
Covered loans, by credit rating	1,962	3,228
Term [Member] | Loss [Member]
Financing Receivable, Recorded Investment [Line Items]
Covered loans, by credit rating
LOC & Other [Member]
Financing Receivable, Recorded Investment [Line Items]
Covered loans, by credit rating	16,037	22,524
LOC & Other [Member] | Pass/Watch [Member]
Financing Receivable, Recorded Investment [Line Items]
Covered loans, by credit rating	13,575	13,605
LOC & Other [Member] | Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Covered loans, by credit rating	482	2,756
LOC & Other [Member] | Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Covered loans, by credit rating	953	5,607
LOC & Other [Member] | Doubtful [Member]
Financing Receivable, Recorded Investment [Line Items]
Covered loans, by credit rating	1,027	556
LOC & Other [Member] | Loss [Member]
Financing Receivable, Recorded Investment [Line Items]
Covered loans, by credit rating
Mortgage [Member]
Financing Receivable, Recorded Investment [Line Items]
Covered loans, by credit rating	29,032	35,233
Mortgage [Member] | Pass/Watch [Member]
Financing Receivable, Recorded Investment [Line Items]
Covered loans, by credit rating	29,032	35,233
Mortgage [Member] | Loss [Member]
Financing Receivable, Recorded Investment [Line Items]
Covered loans, by credit rating
Home Equity Loans & Lines [Member]
Financing Receivable, Recorded Investment [Line Items]
Covered loans, by credit rating	23,659	28,366
Home Equity Loans & Lines [Member] | Pass/Watch [Member]
Financing Receivable, Recorded Investment [Line Items]
Covered loans, by credit rating	23,544	28,223
Home Equity Loans & Lines [Member] | Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Covered loans, by credit rating	115	143
Home Equity Loans & Lines [Member] | Loss [Member]
Financing Receivable, Recorded Investment [Line Items]
Covered loans, by credit rating
Consumer & Other [Member]
Financing Receivable, Recorded Investment [Line Items]
Covered loans, by credit rating	6,165	7,543
Consumer & Other [Member] | Pass/Watch [Member]
Financing Receivable, Recorded Investment [Line Items]
Covered loans, by credit rating	6,165	7,543
Consumer & Other [Member] | Loss [Member]
Financing Receivable, Recorded Investment [Line Items]
Covered loans, by credit rating