Loans Receivable And Allowance For Credit Losses Landscape (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011
Financing Receivable, Recorded Investment [Line Items]
% of Total	100.00%	100.00%
Financing Receivable, Gross	$ 6,253,234	$ 5,518,889
Residential Real Estate
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Gross	806,722	688,020
Commercial Real Estate
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Gross	2,874,801	2,451,754
Commercial
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Gross	1,817,090	1,704,154
Consumer
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Gross	754,621	674,961
Pass
Financing Receivable, Recorded Investment [Line Items]
% of Total	73.00%	90.00%
Financing Receivable, Gross	4,564,064	4,960,197
Pass | Residential Real Estate
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Gross	714,346	643,071
Pass | Consumer
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Gross	723,698	663,829
Internally Assigned Grade [Member]
Financing Receivable, Recorded Investment [Line Items]
% of Total	20.00%
Financing Receivable, Gross	1,261,577
Internally Assigned Grade [Member] | Residential Real Estate
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Gross	53,722
Internally Assigned Grade [Member] | Consumer
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Gross	17,255
Special Mention
Financing Receivable, Recorded Investment [Line Items]
% of Total	4.00%	4.00%
Financing Receivable, Gross	231,570	215,391
Special Mention | Residential Real Estate
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Gross	11,739	14,031
Special Mention | Consumer
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Gross	4,864	4,166
Substandard
Financing Receivable, Recorded Investment [Line Items]
% of Total	3.00%	6.00%
Financing Receivable, Gross	187,560	325,799
Substandard | Residential Real Estate
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Gross	26,550	30,046
Substandard | Consumer
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Gross	8,804	6,909
Doubtful/Loss
Financing Receivable, Recorded Investment [Line Items]
% of Total	0.00%	0.00%
Financing Receivable, Gross	8,463	17,502
Doubtful/Loss | Residential Real Estate
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Gross	365	872
Doubtful/Loss | Consumer
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Gross	0	57
Restructured
Financing Receivable, Recorded Investment [Line Items]
% of Total	1.00%	1.00%
Financing Receivable, Gross	64,216	76,939
Restructured | Residential Real Estate
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Gross	22,968	17,638
Restructured | Consumer
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Gross	307	0
Nonaccrual
Financing Receivable, Recorded Investment [Line Items]
% of Total	2.00%	4.00%
Financing Receivable, Gross	121,113	210,221
Nonaccrual | Residential Real Estate
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Gross	20,457	25,265
Nonaccrual | Consumer
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Gross	6,938	5,829
Nonperforming
Financing Receivable, Recorded Investment [Line Items]
% of Total	3.00%	5.00%
Financing Receivable, Gross	185,329	287,160
Nonperforming | Residential Real Estate
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Gross	43,425	42,903
Nonperforming | Consumer
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Gross	7,245	5,829
Performing
Financing Receivable, Recorded Investment [Line Items]
% of Total	97.00%	95.00%
Financing Receivable, Gross	6,067,905	5,231,729
Performing | Residential Real Estate
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Gross	763,297	645,117
Performing | Consumer
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Gross	747,376	669,132
Residential Real Estate | Residential Real Estate
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Gross	806,722	688,020
Investor CRE | Commercial Real Estate
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Gross	1,219,847	1,275,667
Investor CRE | Pass | Commercial Real Estate
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Gross	599,660	1,116,991
Investor CRE | Internally Assigned Grade [Member] | Commercial Real Estate
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Gross	472,801
Investor CRE | Special Mention | Commercial Real Estate
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Gross	77,342	83,372
Investor CRE | Substandard | Commercial Real Estate
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Gross	67,347	70,412
Investor CRE | Doubtful/Loss | Commercial Real Estate
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Gross	2,697	4,892
Investor CRE | Restructured | Commercial Real Estate
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Gross	4,334	4,366
Investor CRE | Nonaccrual | Commercial Real Estate
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Gross	46,399	47,827
Investor CRE | Nonperforming | Commercial Real Estate
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Gross	50,733	52,193
Investor CRE | Performing | Commercial Real Estate
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Gross	1,169,114	1,223,474
Multifamily | Commercial Real Estate
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Gross	1,580,289	1,001,479
Multifamily | Pass | Commercial Real Estate
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Gross	1,486,824	975,583
Multifamily | Internally Assigned Grade [Member] | Commercial Real Estate
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Gross	74,379
Multifamily | Special Mention | Commercial Real Estate
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Gross	10,122	9,901
Multifamily | Substandard | Commercial Real Estate
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Gross	8,745	15,279
Multifamily | Doubtful/Loss | Commercial Real Estate
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Gross	219	716
Multifamily | Restructured | Commercial Real Estate
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Gross	4,094	0
Multifamily | Nonaccrual | Commercial Real Estate
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Gross	4,055	5,867
Multifamily | Nonperforming | Commercial Real Estate
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Gross	8,149	5,867
Multifamily | Performing | Commercial Real Estate
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Gross	1,572,140	995,612
Construction | Commercial Real Estate
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Gross	74,665	174,608
Construction | Pass | Commercial Real Estate
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Gross	10,946	51,284
Construction | Internally Assigned Grade [Member] | Commercial Real Estate
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Gross	42,518
Construction | Special Mention | Commercial Real Estate
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Gross	3,401	24,578
Construction | Substandard | Commercial Real Estate
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Gross	17,534	93,185
Construction | Doubtful/Loss | Commercial Real Estate
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Gross	266	5,561
Construction | Restructured | Commercial Real Estate
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Gross	8,551	38,833
Construction | Nonaccrual | Commercial Real Estate
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Gross	8,144	56,385
Construction | Nonperforming | Commercial Real Estate
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Gross	16,695	95,218
Construction | Performing | Commercial Real Estate
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Gross	57,970	79,390
Owner Occupied CRE | Commercial
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Gross	1,276,591	1,272,461
Owner Occupied CRE | Pass | Commercial
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Gross	678,916	1,123,796
Owner Occupied CRE | Internally Assigned Grade [Member] | Commercial
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Gross	454,348
Owner Occupied CRE | Special Mention | Commercial
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Gross	85,228	54,009
Owner Occupied CRE | Substandard | Commercial
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Gross	53,183	90,613
Owner Occupied CRE | Doubtful/Loss | Commercial
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Gross	4,916	4,043
Owner Occupied CRE | Restructured | Commercial
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Gross	23,152	13,519
Owner Occupied CRE | Nonaccrual | Commercial
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Gross	31,696	59,752
Owner Occupied CRE | Nonperforming | Commercial
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Gross	54,848	73,271
Owner Occupied CRE | Performing | Commercial
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Gross	1,221,743	1,199,190
Commercial & Industrial (C&I) | Commercial
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Gross	540,499	431,693
Commercial & Industrial (C&I) | Pass | Commercial
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Gross	349,674	385,643
Commercial & Industrial (C&I) | Internally Assigned Grade [Member] | Commercial
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Gross	146,554
Commercial & Industrial (C&I) | Special Mention | Commercial
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Gross	38,874	25,334
Commercial & Industrial (C&I) | Substandard | Commercial
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Gross	5,397	19,355
Commercial & Industrial (C&I) | Doubtful/Loss | Commercial
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Gross	0	1,361
Commercial & Industrial (C&I) | Restructured | Commercial
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Gross	810	2,583
Commercial & Industrial (C&I) | Nonaccrual | Commercial
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Gross	3,424	9,296
Commercial & Industrial (C&I) | Nonperforming | Commercial
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Gross	4,234	11,879
Commercial & Industrial (C&I) | Performing | Commercial
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Gross	536,265	419,814
Consumer | Consumer
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Gross	$ 754,621	$ 674,961