Loans Receivable And Allowance For Credit Losses Landscape (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011	Dec. 31, 2011
Financing Receivable, Recorded Investment [Line Items]
% of Total	100.00%		100.00%		100.00%
Financing Receivable, Gross	$ 6,142,327		$ 6,142,327		$ 5,518,889
Unpaid Principal Balance	265,000		265,000		384,027
Impaired Financing Receivable, Charge-offs	52,562		52,562		96,867
Book Balance, Without Specific Reserve	174,582		174,582		182,446
Book Balance, With Specific Reserve	37,856		37,856		104,714
Specific Reserve	10,104		10,104		16,305
Average Book Balance	238,890	359,625	249,800	488,889
Interest Income Recognized	1,566	2,883	5,651	6,529
Residential Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Gross	818,323		818,323		688,020
Commercial Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Gross	2,733,833		2,733,833		2,451,754
Unpaid Principal Balance	116,839		116,839		210,290
Impaired Financing Receivable, Charge-offs	27,038		27,038		57,012
Book Balance, Without Specific Reserve	71,348		71,348		79,280
Book Balance, With Specific Reserve	18,453		18,453		73,998
Specific Reserve	3,660		3,660		11,170
Commercial [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Gross	1,821,812		1,821,812		1,704,154
Unpaid Principal Balance	92,167		92,167		115,101
Impaired Financing Receivable, Charge-offs	18,822		18,822		29,951
Book Balance, Without Specific Reserve	54,756		54,756		59,401
Book Balance, With Specific Reserve	18,589		18,589		25,749
Specific Reserve	6,036		6,036		4,206
Consumer [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Gross	768,359		768,359		674,961
Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
% of Total	93.00%		93.00%		90.00%
Financing Receivable, Gross	5,660,692		5,660,692		4,960,197
Pass [Member] | Residential Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Gross	779,226		779,226		643,071
Pass [Member] | Consumer [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Gross	756,162		756,162		663,829
Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
% of Total	4.00%		4.00%		4.00%
Financing Receivable, Gross	261,215		261,215		215,391
Special Mention [Member] | Residential Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Gross	13,181		13,181		14,031
Special Mention [Member] | Consumer [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Gross	4,735		4,735		4,166
Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
% of Total	3.00%		3.00%		6.00%
Financing Receivable, Gross	210,316		210,316		325,799
Substandard [Member] | Residential Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Gross	25,551		25,551		30,046
Substandard [Member] | Consumer [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Gross	7,419		7,419		6,909
Doubtful/Loss [Member]
Financing Receivable, Recorded Investment [Line Items]
% of Total	0.00%		0.00%		0.00%
Financing Receivable, Gross	10,104		10,104		17,502
Doubtful/Loss [Member] | Residential Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Gross	365		365		872
Doubtful/Loss [Member] | Consumer [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Gross	43		43		57
Restructured [Member]
Financing Receivable, Recorded Investment [Line Items]
% of Total	1.00%		1.00%		1.00%
Financing Receivable, Gross	66,343		66,343		76,939
Restructured [Member] | Residential Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Gross	22,131		22,131		17,638
Restructured [Member] | Consumer [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Gross	475		475		0
Nonaccrual [Member]
Financing Receivable, Recorded Investment [Line Items]
% of Total	2.00%		2.00%		4.00%
Financing Receivable, Gross	146,095		146,095		210,221
Nonaccrual [Member] | Residential Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Gross	21,095		21,095		25,265
Nonaccrual [Member] | Consumer [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Gross	5,591		5,591		5,829
Nonperforming [Member]
Financing Receivable, Recorded Investment [Line Items]
% of Total	3.00%		3.00%		5.00%
Financing Receivable, Gross	212,438		212,438		287,160
Nonperforming [Member] | Residential Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Gross	43,226		43,226		42,903
Nonperforming [Member] | Consumer [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Gross	6,066		6,066		5,829
Performing [Member]
Financing Receivable, Recorded Investment [Line Items]
% of Total	97.00%		97.00%		95.00%
Financing Receivable, Gross	5,929,889		5,929,889		5,231,729
Performing [Member] | Residential Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Gross	775,097		775,097		645,117
Performing [Member] | Consumer [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Gross	762,293		762,293		669,132
Residential Real Estate [Member] | Residential Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Gross	818,323		818,323		688,020
Unpaid Principal Balance	49,633		49,633		52,023
Impaired Financing Receivable, Charge-offs	6,407		6,407		9,120
Book Balance, Without Specific Reserve	42,861		42,861		38,519
Book Balance, With Specific Reserve	365		365		4,384
Specific Reserve	365		365		872
Average Book Balance	43,393	51,786	43,065	70,286
Interest Income Recognized	170	247	588	567
Investor Commercial Real Estate [Member] | Commercial Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Gross	1,274,774		1,274,774		1,275,667
Unpaid Principal Balance	61,789		61,789		70,517
Impaired Financing Receivable, Charge-offs	8,671		8,671		18,324
Book Balance, Without Specific Reserve	39,481		39,481		31,503
Book Balance, With Specific Reserve	13,637		13,637		20,690
Specific Reserve	2,539		2,539		4,892
Average Book Balance	63,746	58,185	52,656	83,024
Interest Income Recognized	278	620	1,281	1,848
Investor Commercial Real Estate [Member] | Pass [Member] | Commercial Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Gross	1,085,091		1,085,091		1,116,991
Investor Commercial Real Estate [Member] | Special Mention [Member] | Commercial Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Gross	122,333		122,333		83,372
Investor Commercial Real Estate [Member] | Substandard [Member] | Commercial Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Gross	64,811		64,811		70,412
Investor Commercial Real Estate [Member] | Doubtful/Loss [Member] | Commercial Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Gross	2,539		2,539		4,892
Investor Commercial Real Estate [Member] | Restructured [Member] | Commercial Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Gross	4,339		4,339		4,366
Investor Commercial Real Estate [Member] | Nonaccrual [Member] | Commercial Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Gross	48,779		48,779		47,827
Investor Commercial Real Estate [Member] | Nonperforming [Member] | Commercial Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Gross	53,118		53,118		52,193
Investor Commercial Real Estate [Member] | Performing [Member] | Commercial Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Gross	1,221,656		1,221,656		1,223,474
Multifamily [Member] | Commercial Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Gross	1,359,506		1,359,506		1,001,479
Unpaid Principal Balance	10,358		10,358		6,185
Impaired Financing Receivable, Charge-offs	1,137		1,137		318
Book Balance, Without Specific Reserve	5,877		5,877		4,496
Book Balance, With Specific Reserve	3,344		3,344		1,371
Specific Reserve	1,002		1,002		716
Average Book Balance	17,865	7,206	7,544	14,419
Interest Income Recognized	55	67	405	690
Multifamily [Member] | Pass [Member] | Commercial Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Gross	1,337,555		1,337,555		975,583
Multifamily [Member] | Special Mention [Member] | Commercial Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Gross	10,948		10,948		9,901
Multifamily [Member] | Substandard [Member] | Commercial Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Gross	10,001		10,001		15,279
Multifamily [Member] | Doubtful/Loss [Member] | Commercial Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Gross	1,002		1,002		716
Multifamily [Member] | Restructured [Member] | Commercial Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Gross	3,567		3,567		0
Multifamily [Member] | Nonaccrual [Member] | Commercial Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Gross	5,654		5,654		5,867
Multifamily [Member] | Nonperforming [Member] | Commercial Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Gross	9,221		9,221		5,867
Multifamily [Member] | Performing [Member] | Commercial Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Gross	1,350,285		1,350,285		995,612
Construction [Member] | Commercial Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Gross	99,553		99,553		174,608
Unpaid Principal Balance	44,692		44,692		133,588
Impaired Financing Receivable, Charge-offs	17,230		17,230		38,370
Book Balance, Without Specific Reserve	25,990		25,990		43,281
Book Balance, With Specific Reserve	1,472		1,472		51,937
Specific Reserve	119		119		5,562
Average Book Balance	30,152	142,356	61,340	222,280
Interest Income Recognized	692	1,146	1,565	1,190
Construction [Member] | Pass [Member] | Commercial Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Gross	71,752		71,752		51,284
Construction [Member] | Special Mention [Member] | Commercial Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Gross	3,857		3,857		24,578
Construction [Member] | Substandard [Member] | Commercial Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Gross	23,825		23,825		93,185
Construction [Member] | Doubtful/Loss [Member] | Commercial Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Gross	119		119		5,561
Construction [Member] | Restructured [Member] | Commercial Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Gross	13,176		13,176		38,833
Construction [Member] | Nonaccrual [Member] | Commercial Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Gross	14,286		14,286		56,385
Construction [Member] | Nonperforming [Member] | Commercial Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Gross	27,462		27,462		95,218
Construction [Member] | Performing [Member] | Commercial Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Gross	72,091		72,091		79,390
Owner Occupied CRE [Member] | Commercial [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Gross	1,304,224		1,304,224		1,272,461
Unpaid Principal Balance	69,232		69,232		89,604
Impaired Financing Receivable, Charge-offs	5,797		5,797		16,333
Book Balance, Without Specific Reserve	44,846		44,846		48,194
Book Balance, With Specific Reserve	18,589		18,589		25,077
Specific Reserve	6,036		6,036		4,043
Average Book Balance	68,270	80,913	68,353	79,218
Interest Income Recognized	316	723	1,722	1,913
Owner Occupied CRE [Member] | Pass [Member] | Commercial [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Gross	1,160,239		1,160,239		1,123,796
Owner Occupied CRE [Member] | Special Mention [Member] | Commercial [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Gross	71,110		71,110		54,009
Owner Occupied CRE [Member] | Substandard [Member] | Commercial [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Gross	66,839		66,839		90,613
Owner Occupied CRE [Member] | Doubtful/Loss [Member] | Commercial [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Gross	6,036		6,036		4,043
Owner Occupied CRE [Member] | Restructured [Member] | Commercial [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Gross	20,689		20,689		13,519
Owner Occupied CRE [Member] | Nonaccrual [Member] | Commercial [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Gross	42,746		42,746		59,752
Owner Occupied CRE [Member] | Nonperforming [Member] | Commercial [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Gross	63,435		63,435		73,271
Owner Occupied CRE [Member] | Performing [Member] | Commercial [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Gross	1,240,789		1,240,789		1,199,190
Commercial & Industrial (C&I) [Member] | Commercial [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Gross	517,588		517,588		431,693
Unpaid Principal Balance	22,935		22,935		25,497
Impaired Financing Receivable, Charge-offs	13,025		13,025		13,618
Book Balance, Without Specific Reserve	9,910		9,910		11,207
Book Balance, With Specific Reserve	0		0		672
Specific Reserve	0		0		163
Average Book Balance	10,137	13,544	10,895	12,823
Interest Income Recognized	51	80	86	321
Commercial & Industrial (C&I) [Member] | Pass [Member] | Commercial [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Gross	470,667		470,667		385,643
Commercial & Industrial (C&I) [Member] | Special Mention [Member] | Commercial [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Gross	35,051		35,051		25,334
Commercial & Industrial (C&I) [Member] | Substandard [Member] | Commercial [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Gross	11,870		11,870		19,355
Commercial & Industrial (C&I) [Member] | Doubtful/Loss [Member] | Commercial [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Gross	0		0		1,361
Commercial & Industrial (C&I) [Member] | Restructured [Member] | Commercial [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Gross	1,966		1,966		2,583
Commercial & Industrial (C&I) [Member] | Nonaccrual [Member] | Commercial [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Gross	7,944		7,944		9,296
Commercial & Industrial (C&I) [Member] | Nonperforming [Member] | Commercial [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Gross	9,910		9,910		11,879
Commercial & Industrial (C&I) [Member] | Performing [Member] | Commercial [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Gross	507,678		507,678		419,814
Consumer [Member] | Consumer [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Gross	768,359		768,359		674,961
Unpaid Principal Balance	6,361		6,361		6,613
Impaired Financing Receivable, Charge-offs	295		295		784
Book Balance, Without Specific Reserve	5,617		5,617		5,246
Book Balance, With Specific Reserve	449		449		583
Specific Reserve	43		43		57
Average Book Balance	5,327	5,635	5,947	6,839
Interest Income Recognized	$ 4	$ 0	$ 4	$ 0