Allowance For Non-Covered Loan Loss And Credit Quality (Internal Risk Rating By Loan Class) (Details) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2012	Dec. 31, 2011	Sep. 30, 2011
Financing Receivable, Recorded Investment [Line Items]
Loans by credit quality	$ 6,260,525	$ 5,899,178	$ 5,839,364
Deferred loan fees, net	(12,100)	(11,080)	(11,300)
Total loans and leases	6,248,425	5,888,098
Term & Multifamily [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans by credit quality	3,707,084	3,558,295
Construction & Development [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans by credit quality	174,554	165,066
Residential Development [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans by credit quality	64,158	90,073
Term [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans by credit quality	755,255	625,766
LOC & Other [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans by credit quality	865,851	832,999
Mortgage [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans by credit quality	391,370	315,927
Home Equity Loans & Lines [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans by credit quality	264,379	272,192
Consumer & Other [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans by credit quality	37,874	38,860
Pass/Watch [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans by credit quality	5,625,319	5,181,205
Percentage of impaired loans	3.30%
Pass/Watch [Member] | Term & Multifamily [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans by credit quality	3,274,893	3,068,803
Pass/Watch [Member] | Construction & Development [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans by credit quality	132,843	109,434
Pass/Watch [Member] | Residential Development [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans by credit quality	25,579	24,801
Pass/Watch [Member] | Term [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans by credit quality	683,948	586,365
Pass/Watch [Member] | LOC & Other [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans by credit quality	824,039	775,495
Pass/Watch [Member] | Mortgage [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans by credit quality	385,653	309,478
Pass/Watch [Member] | Home Equity Loans & Lines [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans by credit quality	261,140	268,731
Pass/Watch [Member] | Consumer & Other [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans by credit quality	37,224	38,098
Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans by credit quality	292,713	343,714
Percentage of impaired loans	6.30%	3.80%
Special Mention [Member] | Term & Multifamily [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans by credit quality	217,960	275,475
Special Mention [Member] | Construction & Development [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans by credit quality	16,284	19,946
Special Mention [Member] | Residential Development [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans by credit quality	3,746	6,740
Special Mention [Member] | Term [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans by credit quality	32,658	16,631
Special Mention [Member] | LOC & Other [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans by credit quality	19,152	22,051
Special Mention [Member] | Mortgage [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans by credit quality	1,579	2,106
Special Mention [Member] | Home Equity Loans & Lines [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans by credit quality	1,260	683
Special Mention [Member] | Consumer & Other [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans by credit quality	74	82
Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans by credit quality	187,886	201,631
Percentage of impaired loans	90.40%	96.00%
Substandard [Member] | Term & Multifamily [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans by credit quality	132,545	146,919
Substandard [Member] | Construction & Development [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans by credit quality	6,097	12,342
Substandard [Member] | Residential Development [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans by credit quality	6,159	8,733
Substandard [Member] | Term [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans by credit quality	26,071	9,608
Substandard [Member] | LOC & Other [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans by credit quality	16,867	22,706
Substandard [Member] | Mortgage [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans by credit quality		296
Substandard [Member] | Home Equity Loans & Lines [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans by credit quality	83	773
Substandard [Member] | Consumer & Other [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans by credit quality	64	254
Doubtful [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans by credit quality
Doubtful [Member] | Term & Multifamily [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans by credit quality
Doubtful [Member] | Construction & Development [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans by credit quality
Doubtful [Member] | Residential Development [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans by credit quality
Doubtful [Member] | Term [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans by credit quality
Doubtful [Member] | LOC & Other [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans by credit quality
Doubtful [Member] | Mortgage [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans by credit quality
Doubtful [Member] | Home Equity Loans & Lines [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans by credit quality
Doubtful [Member] | Consumer & Other [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans by credit quality
Loss [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans by credit quality	5,753	6,349
Percentage of impaired loans		0.20%
Loss [Member] | Mortgage [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans by credit quality	4,138	4,047
Loss [Member] | Home Equity Loans & Lines [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans by credit quality	1,103	1,876
Loss [Member] | Consumer & Other [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans by credit quality	512	426
Impaired [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans by credit quality	148,854	166,279
Impaired [Member] | Term & Multifamily [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans by credit quality	81,686	67,098
Impaired [Member] | Construction & Development [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans by credit quality	19,330	23,344
Impaired [Member] | Residential Development [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans by credit quality	28,674	49,799
Impaired [Member] | Term [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans by credit quality	12,578	13,162
Impaired [Member] | LOC & Other [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans by credit quality	5,793	12,747
Impaired [Member] | Home Equity Loans & Lines [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans by credit quality	$ 793	$ 129