Loans Receivable And Allowance For Credit Losses Landscape Financing Receivables Past Due (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, Past Due [Abstract]
30 to 59 days past due	$ 25,135		$ 25,135		$ 48,300
60 to 89 days past due	31,116		31,116		16,622
Greater than 90 days past due	126,807		126,807		179,080
Total past due	183,058		183,058		244,002
Current	5,900,518		5,900,518		5,274,887
Greater than 90 days and accruing	0		0		0
% of Total, 30 to 59 days past due	0.00%		0.00%		1.00%
% of Total, 60 to 89 days past due	1.00%		1.00%		0.00%
% of Total, 90 days past due	2.00%		2.00%		3.00%
% of Total, Total Past Due	3.00%		3.00%		4.00%
% of Total, Current	97.00%		97.00%		96.00%
Total loans receivable, gross	6,083,576		6,083,576		5,518,889
Total Loans, Percentage	100.00%		100.00%		100.00%
% of Total, 90 days past due and still accruing	0.00%		0.00%		0.00%
Loan and Lease Receivables, Impaired [Abstract]
Unpaid Principal Balance	330,869		330,869		384,027
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, Past Due [Abstract]
Total loans receivable, gross	785,482		785,482		688,020
Residential Real Estate [Member] | Residential Real Estate [Member]
Financing Receivable, Recorded Investment, Past Due [Abstract]
30 to 59 days past due	2,883		2,883		5,718
60 to 89 days past due	3,241		3,241		4,585
Greater than 90 days past due	18,533		18,533		20,207
Total past due	24,657		24,657		30,510
Current	760,825		760,825		657,510
Greater than 90 days and accruing	0		0		0
Total loans receivable, gross	785,482		785,482		688,020
Loan and Lease Receivables, Impaired [Abstract]
Unpaid Principal Balance	50,066		50,066		52,023
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
Commercial Real Estate [Member]
Financing Receivable, Recorded Investment, Past Due [Abstract]
Total loans receivable, gross	2,747,714		2,747,714		2,451,754
Loan and Lease Receivables, Impaired [Abstract]
Unpaid Principal Balance	169,228		169,228		210,290
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 Real Estate [Member] | Investor CRE [Member]
Financing Receivable, Recorded Investment, Past Due [Abstract]
30 to 59 days past due	4,318		4,318		3,354
60 to 89 days past due	13,624		13,624		3,954
Greater than 90 days past due	31,148		31,148		33,759
Total past due	49,090		49,090		41,067
Current	1,275,827		1,275,827		1,234,600
Greater than 90 days and accruing	0		0		0
Total loans receivable, gross	1,324,917		1,324,917		1,275,667
Loan and Lease Receivables, Impaired [Abstract]
Unpaid Principal Balance	87,488		87,488		70,517
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
Commercial Real Estate [Member] | Multifamily [Member]
Financing Receivable, Recorded Investment, Past Due [Abstract]
30 to 59 days past due	942		942		1,523
60 to 89 days past due	1,363		1,363		193
Greater than 90 days past due	2,903		2,903		3,178
Total past due	5,208		5,208		4,894
Current	1,306,039		1,306,039		996,585
Greater than 90 days and accruing	0		0		0
Total loans receivable, gross	1,311,247		1,311,247		1,001,479
Loan and Lease Receivables, Impaired [Abstract]
Unpaid Principal Balance	27,746		27,746		6,185
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
Commercial Real Estate [Member] | Construction [Member]
Financing Receivable, Recorded Investment, Past Due [Abstract]
30 to 59 days past due	0		0		11,830
60 to 89 days past due	0		0		879
Greater than 90 days past due	26,172		26,172		68,024
Total past due	26,172		26,172		80,733
Current	85,378		85,378		93,875
Greater than 90 days and accruing	0		0		0
Total loans receivable, gross	111,550		111,550		174,608
Loan and Lease Receivables, Impaired [Abstract]
Unpaid Principal Balance	53,994		53,994		133,588
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
Commercial [Member]
Financing Receivable, Recorded Investment, Past Due [Abstract]
Total loans receivable, gross	1,813,983		1,813,983		1,704,154
Loan and Lease Receivables, Impaired [Abstract]
Unpaid Principal Balance	106,568		106,568		115,101
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
Commercial [Member] | Owner Occupied CRE [Member]
Financing Receivable, Recorded Investment, Past Due [Abstract]
30 to 59 days past due	9,474		9,474		19,967
60 to 89 days past due	8,181		8,181		4,233
Greater than 90 days past due	39,062		39,062		40,987
Total past due	56,717		56,717		65,187
Current	1,252,870		1,252,870		1,207,274
Greater than 90 days and accruing	0		0		0
Total loans receivable, gross	1,309,587		1,309,587		1,272,461
Loan and Lease Receivables, Impaired [Abstract]
Unpaid Principal Balance	83,401		83,401		89,604
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
Commercial [Member] | Commercial & Industrial (C&I) [Member]
Financing Receivable, Recorded Investment, Past Due [Abstract]
30 to 59 days past due	2,351		2,351		1,741
60 to 89 days past due	1,230		1,230		520
Greater than 90 days past due	5,110		5,110		7,871
Total past due	8,691		8,691		10,132
Current	495,705		495,705		421,561
Greater than 90 days and accruing	0		0		0
Total loans receivable, gross	504,396		504,396		431,693
Loan and Lease Receivables, Impaired [Abstract]
Unpaid Principal Balance	23,167		23,167		25,497
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
Consumer [Member]
Financing Receivable, Recorded Investment, Past Due [Abstract]
Total loans receivable, gross	736,397		736,397		674,961
Consumer [Member] | Consumer [Member]
Financing Receivable, Recorded Investment, Past Due [Abstract]
30 to 59 days past due	5,167		5,167		4,167
60 to 89 days past due	3,477		3,477		2,258
Greater than 90 days past due	3,879		3,879		5,054
Total past due	12,523		12,523		11,479
Current	723,874		723,874		663,482
Greater than 90 days and accruing	0		0		0
Total loans receivable, gross	736,397		736,397		674,961
Loan and Lease Receivables, Impaired [Abstract]
Unpaid Principal Balance	5,007		5,007		6,613
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