Loans Receivable And Allowance For Credit Losses Landscape Financing Receivables Past Due (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, Past Due [Abstract]
30 to 59 days past due	$ 36,407		$ 36,407		$ 48,300
60 to 89 days past due	19,484		19,484		16,622
Greater than 90 days past due	100,938		100,938		179,080
Total past due	156,829		156,829		244,002
Current	5,985,498		5,985,498		5,274,887
Greater than 90 days and accruing	0		0		0
% of Total, 30 to 59 days past due	1.00%		1.00%		1.00%
% of Total, 60 to 89 days past due	0.00%		0.00%		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	6,142,327		6,142,327		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	265,000		265,000		384,027
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, Past Due [Abstract]
Total loans receivable, gross	818,323		818,323		688,020
Residential Real Estate [Member] | Residential Real Estate [Member]
Financing Receivable, Recorded Investment, Past Due [Abstract]
30 to 59 days past due	5,742		5,742		5,718
60 to 89 days past due	3,670		3,670		4,585
Greater than 90 days past due	19,155		19,155		20,207
Total past due	28,567		28,567		30,510
Current	789,756		789,756		657,510
Greater than 90 days and accruing	0		0		0
Total loans receivable, gross	818,323		818,323		688,020
Loan and Lease Receivables, Impaired [Abstract]
Unpaid Principal Balance	49,633		49,633		52,023
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
Commercial Real Estate [Member]
Financing Receivable, Recorded Investment, Past Due [Abstract]
Total loans receivable, gross	2,733,833		2,733,833		2,451,754
Loan and Lease Receivables, Impaired [Abstract]
Unpaid Principal Balance	116,839		116,839		210,290
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 Real Estate [Member] | Investor CRE [Member]
Financing Receivable, Recorded Investment, Past Due [Abstract]
30 to 59 days past due	12,602		12,602		3,354
60 to 89 days past due	6,806		6,806		3,954
Greater than 90 days past due	26,678		26,678		33,759
Total past due	46,086		46,086		41,067
Current	1,228,688		1,228,688		1,234,600
Greater than 90 days and accruing	0		0		0
Total loans receivable, gross	1,274,774		1,274,774		1,275,667
Loan and Lease Receivables, Impaired [Abstract]
Unpaid Principal Balance	61,789		61,789		70,517
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
Commercial Real Estate [Member] | Multifamily [Member]
Financing Receivable, Recorded Investment, Past Due [Abstract]
30 to 59 days past due	709		709		1,523
60 to 89 days past due	230		230		193
Greater than 90 days past due	3,241		3,241		3,178
Total past due	4,180		4,180		4,894
Current	1,355,326		1,355,326		996,585
Greater than 90 days and accruing	0		0		0
Total loans receivable, gross	1,359,506		1,359,506		1,001,479
Loan and Lease Receivables, Impaired [Abstract]
Unpaid Principal Balance	10,358		10,358		6,185
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
Commercial Real Estate [Member] | Construction [Member]
Financing Receivable, Recorded Investment, Past Due [Abstract]
30 to 59 days past due	72		72		11,830
60 to 89 days past due	4,347		4,347		879
Greater than 90 days past due	10,260		10,260		68,024
Total past due	14,679		14,679		80,733
Current	84,874		84,874		93,875
Greater than 90 days and accruing	0		0		0
Total loans receivable, gross	99,553		99,553		174,608
Loan and Lease Receivables, Impaired [Abstract]
Unpaid Principal Balance	44,692		44,692		133,588
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
Commercial [Member]
Financing Receivable, Recorded Investment, Past Due [Abstract]
Total loans receivable, gross	1,821,812		1,821,812		1,704,154
Loan and Lease Receivables, Impaired [Abstract]
Unpaid Principal Balance	92,167		92,167		115,101
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
Commercial [Member] | Owner Occupied CRE [Member]
Financing Receivable, Recorded Investment, Past Due [Abstract]
30 to 59 days past due	9,161		9,161		19,967
60 to 89 days past due	2,154		2,154		4,233
Greater than 90 days past due	32,178		32,178		40,987
Total past due	43,493		43,493		65,187
Current	1,260,731		1,260,731		1,207,274
Greater than 90 days and accruing	0		0		0
Total loans receivable, gross	1,304,224		1,304,224		1,272,461
Loan and Lease Receivables, Impaired [Abstract]
Unpaid Principal Balance	69,232		69,232		89,604
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
Commercial [Member] | Commercial & Industrial (C&I) [Member]
Financing Receivable, Recorded Investment, Past Due [Abstract]
30 to 59 days past due	1,612		1,612		1,741
60 to 89 days past due	819		819		520
Greater than 90 days past due	4,128		4,128		7,871
Total past due	6,559		6,559		10,132
Current	511,029		511,029		421,561
Greater than 90 days and accruing	0		0		0
Total loans receivable, gross	517,588		517,588		431,693
Loan and Lease Receivables, Impaired [Abstract]
Unpaid Principal Balance	22,935		22,935		25,497
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
Consumer [Member]
Financing Receivable, Recorded Investment, Past Due [Abstract]
Total loans receivable, gross	768,359		768,359		674,961
Consumer [Member] | Consumer [Member]
Financing Receivable, Recorded Investment, Past Due [Abstract]
30 to 59 days past due	6,509		6,509		4,167
60 to 89 days past due	1,458		1,458		2,258
Greater than 90 days past due	5,298		5,298		5,054
Total past due	13,265		13,265		11,479
Current	755,094		755,094		663,482
Greater than 90 days and accruing	0		0		0
Total loans receivable, gross	768,359		768,359		674,961
Loan and Lease Receivables, Impaired [Abstract]
Unpaid Principal Balance	6,361		6,361		6,613
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