Loans Receivable And Allowance For Credit Losses Landscape (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011	Dec. 31, 2011
Financing Receivable, Recorded Investment [Line Items]
% of Total	100.00%		100.00%		100.00%
Financing Receivable, Gross	$ 6,083,576		$ 6,083,576		$ 5,518,889
Unpaid Principal Balance	330,869		330,869		384,027
Impaired Financing Receivable, Charge-offs	65,529		65,529		96,867
Book Balance, Without Specific Reserve	210,470		210,470		182,446
Book Balance, With Specific Reserve	54,870		54,870		104,714
Specific Reserve	10,196		10,196		16,305
Average Book Balance	272,521	436,588	276,251	525,375
Interest Income Recognized	1,505	2,046	4,085	3,646
Residential Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Gross	785,482		785,482		688,020
Commercial Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Gross	2,747,714		2,747,714		2,451,754
Unpaid Principal Balance	169,228		169,228		210,290
Impaired Financing Receivable, Charge-offs	35,504		35,504		57,012
Book Balance, Without Specific Reserve	103,594		103,594		79,280
Book Balance, With Specific Reserve	30,130		30,130		73,998
Specific Reserve	3,646		3,646		11,170
Commercial [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Gross	1,813,983		1,813,983		1,704,154
Unpaid Principal Balance	106,568		106,568		115,101
Impaired Financing Receivable, Charge-offs	23,100		23,100		29,951
Book Balance, Without Specific Reserve	59,542		59,542		59,401
Book Balance, With Specific Reserve	23,926		23,926		25,749
Specific Reserve	6,142		6,142		4,206
Consumer [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Gross	736,397		736,397		674,961
Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
% of Total	92.00%		92.00%		90.00%
Financing Receivable, Gross	5,558,186		5,558,186		4,960,197
Pass [Member] | Residential Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Gross	747,972		747,972		643,071
Pass [Member] | Consumer [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Gross	723,673		723,673		663,829
Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
% of Total	4.00%		4.00%		4.00%
Financing Receivable, Gross	256,337		256,337		215,391
Special Mention [Member] | Residential Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Gross	10,150		10,150		14,031
Special Mention [Member] | Consumer [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Gross	5,553		5,553		4,166
Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
% of Total	4.00%		4.00%		6.00%
Financing Receivable, Gross	258,857		258,857		325,799
Substandard [Member] | Residential Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Gross	26,995		26,995		30,046
Substandard [Member] | Consumer [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Gross	7,128		7,128		6,909
Doubtful/Loss [Member]
Financing Receivable, Recorded Investment [Line Items]
% of Total	0.00%		0.00%		0.00%
Financing Receivable, Gross	10,196		10,196		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	89,120		89,120		76,939
Restructured [Member] | Residential Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Gross	23,102		23,102		17,638
Restructured [Member] | Consumer [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Gross	311		311		0
Nonaccrual [Member]
Financing Receivable, Recorded Investment [Line Items]
% of Total	3.00%		3.00%		4.00%
Financing Receivable, Gross	176,220		176,220		210,221
Nonaccrual [Member] | Residential Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Gross	20,457		20,457		25,265
Nonaccrual [Member] | Consumer [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Gross	4,278		4,278		5,829
Nonperforming [Member]
Financing Receivable, Recorded Investment [Line Items]
% of Total	4.00%		4.00%		5.00%
Financing Receivable, Gross	265,340		265,340		287,160
Nonperforming [Member] | Residential Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Gross	43,559		43,559		42,903
Nonperforming [Member] | Consumer [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Gross	4,589		4,589		5,829
Performing [Member]
Financing Receivable, Recorded Investment [Line Items]
% of Total	96.00%		96.00%		95.00%
Financing Receivable, Gross	5,818,236		5,818,236		5,231,729
Performing [Member] | Residential Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Gross	741,923		741,923		645,117
Performing [Member] | Consumer [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Gross	731,808		731,808		669,132
Residential Real Estate [Member] | Residential Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Gross	785,482		785,482		688,020
Unpaid Principal Balance	50,066		50,066		52,023
Impaired Financing Receivable, Charge-offs	6,507		6,507		9,120
Book Balance, Without Specific Reserve	43,194		43,194		38,519
Book Balance, With Specific Reserve	365		365		4,384
Specific Reserve	365		365		872
Average Book Balance	46,485	58,572	43,231	72,911
Interest Income Recognized	174	320	418	320
Investor Commercial Real Estate [Member] | Commercial Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Gross	1,324,917		1,324,917		1,275,667
Unpaid Principal Balance	87,488		87,488		70,517
Impaired Financing Receivable, Charge-offs	13,114		13,114		18,324
Book Balance, Without Specific Reserve	65,635		65,635		31,503
Book Balance, With Specific Reserve	8,739		8,739		20,690
Specific Reserve	2,463		2,463		4,892
Average Book Balance	60,793	60,416	63,283	81,247
Interest Income Recognized	421	908	1,003	1,228
Investor Commercial Real Estate [Member] | Pass [Member] | Commercial Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Gross	1,131,163		1,131,163		1,116,991
Investor Commercial Real Estate [Member] | Special Mention [Member] | Commercial Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Gross	120,171		120,171		83,372
Investor Commercial Real Estate [Member] | Substandard [Member] | Commercial Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Gross	71,120		71,120		70,412
Investor Commercial Real Estate [Member] | Doubtful/Loss [Member] | Commercial Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Gross	2,463		2,463		4,892
Investor Commercial Real Estate [Member] | Restructured [Member] | Commercial Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Gross	25,178		25,178		4,366
Investor Commercial Real Estate [Member] | Nonaccrual [Member] | Commercial Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Gross	49,196		49,196		47,827
Investor Commercial Real Estate [Member] | Nonperforming [Member] | Commercial Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Gross	74,374		74,374		52,193
Investor Commercial Real Estate [Member] | Performing [Member] | Commercial Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Gross	1,250,543		1,250,543		1,223,474
Multifamily [Member] | Commercial Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Gross	1,311,247		1,311,247		1,001,479
Unpaid Principal Balance	27,746		27,746		6,185
Impaired Financing Receivable, Charge-offs	1,238		1,238		318
Book Balance, Without Specific Reserve	6,844		6,844		4,496
Book Balance, With Specific Reserve	19,664		19,664		1,371
Specific Reserve	1,029		1,029		716
Average Book Balance	16,839	15,075	16,188	16,328
Interest Income Recognized	255	95	350	623
Multifamily [Member] | Pass [Member] | Commercial Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Gross	1,271,480		1,271,480		975,583
Multifamily [Member] | Special Mention [Member] | Commercial Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Gross	11,795		11,795		9,901
Multifamily [Member] | Substandard [Member] | Commercial Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Gross	26,943		26,943		15,279
Multifamily [Member] | Doubtful/Loss [Member] | Commercial Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Gross	1,029		1,029		716
Multifamily [Member] | Restructured [Member] | Commercial Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Gross	2,360		2,360		0
Multifamily [Member] | Nonaccrual [Member] | Commercial Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Gross	24,148		24,148		5,867
Multifamily [Member] | Nonperforming [Member] | Commercial Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Gross	26,508		26,508		5,867
Multifamily [Member] | Performing [Member] | Commercial Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Gross	1,284,739		1,284,739		995,612
Construction [Member] | Commercial Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Gross	111,550		111,550		174,608
Unpaid Principal Balance	53,994		53,994		133,588
Impaired Financing Receivable, Charge-offs	21,152		21,152		38,370
Book Balance, Without Specific Reserve	31,115		31,115		43,281
Book Balance, With Specific Reserve	1,727		1,727		51,937
Specific Reserve	154		154		5,562
Average Book Balance	58,289	206,881	64,030	255,732
Interest Income Recognized	21	14	873	44
Construction [Member] | Pass [Member] | Commercial Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Gross	71,016		71,016		51,284
Construction [Member] | Special Mention [Member] | Commercial Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Gross	3,251		3,251		24,578
Construction [Member] | Substandard [Member] | Commercial Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Gross	37,129		37,129		93,185
Construction [Member] | Doubtful/Loss [Member] | Commercial Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Gross	154		154		5,561
Construction [Member] | Restructured [Member] | Commercial Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Gross	10,396		10,396		38,833
Construction [Member] | Nonaccrual [Member] | Commercial Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Gross	22,446		22,446		56,385
Construction [Member] | Nonperforming [Member] | Commercial Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Gross	32,842		32,842		95,218
Construction [Member] | Performing [Member] | Commercial Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Gross	78,708		78,708		79,390
Owner Occupied CRE [Member] | Commercial [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Gross	1,309,587		1,309,587		1,272,461
Unpaid Principal Balance	83,401		83,401		89,604
Impaired Financing Receivable, Charge-offs	10,296		10,296		16,333
Book Balance, Without Specific Reserve	49,504		49,504		48,194
Book Balance, With Specific Reserve	23,601		23,601		25,077
Specific Reserve	5,816		5,816		4,043
Average Book Balance	73,688	75,947	73,188	79,528
Interest Income Recognized	628	597	1,406	1,189
Owner Occupied CRE [Member] | Pass [Member] | Commercial [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Gross	1,158,647		1,158,647		1,123,796
Owner Occupied CRE [Member] | Special Mention [Member] | Commercial [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Gross	70,369		70,369		54,009
Owner Occupied CRE [Member] | Substandard [Member] | Commercial [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Gross	74,755		74,755		90,613
Owner Occupied CRE [Member] | Doubtful/Loss [Member] | Commercial [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Gross	5,816		5,816		4,043
Owner Occupied CRE [Member] | Restructured [Member] | Commercial [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Gross	25,309		25,309		13,519
Owner Occupied CRE [Member] | Nonaccrual [Member] | Commercial [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Gross	47,796		47,796		59,752
Owner Occupied CRE [Member] | Nonperforming [Member] | Commercial [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Gross	73,105		73,105		73,271
Owner Occupied CRE [Member] | Performing [Member] | Commercial [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Gross	1,236,482		1,236,482		1,199,190
Commercial & Industrial (C&I) [Member] | Commercial [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Gross	504,396		504,396		431,693
Unpaid Principal Balance	23,167		23,167		25,497
Impaired Financing Receivable, Charge-offs	12,804		12,804		13,618
Book Balance, Without Specific Reserve	10,038		10,038		11,207
Book Balance, With Specific Reserve	325		325		672
Specific Reserve	326		326		163
Average Book Balance	11,530	13,649	11,122	12,860
Interest Income Recognized	6	112	35	242
Commercial & Industrial (C&I) [Member] | Pass [Member] | Commercial [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Gross	454,235		454,235		385,643
Commercial & Industrial (C&I) [Member] | Special Mention [Member] | Commercial [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Gross	35,048		35,048		25,334
Commercial & Industrial (C&I) [Member] | Substandard [Member] | Commercial [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Gross	14,787		14,787		19,355
Commercial & Industrial (C&I) [Member] | Doubtful/Loss [Member] | Commercial [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Gross	326		326		1,361
Commercial & Industrial (C&I) [Member] | Restructured [Member] | Commercial [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Gross	2,464		2,464		2,583
Commercial & Industrial (C&I) [Member] | Nonaccrual [Member] | Commercial [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Gross	7,899		7,899		9,296
Commercial & Industrial (C&I) [Member] | Nonperforming [Member] | Commercial [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Gross	10,363		10,363		11,879
Commercial & Industrial (C&I) [Member] | Performing [Member] | Commercial [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Gross	494,033		494,033		419,814
Consumer [Member] | Consumer [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Gross	736,397		736,397		674,961
Unpaid Principal Balance	5,007		5,007		6,613
Impaired Financing Receivable, Charge-offs	418		418		784
Book Balance, Without Specific Reserve	4,140		4,140		5,246
Book Balance, With Specific Reserve	449		449		583
Specific Reserve	43		43		57
Average Book Balance	4,897	6,048	5,209	6,769
Interest Income Recognized	$ 0	$ 0	$ 0	$ 0