Loans Receivable And Allowance For Credit Losses Troubled Debt Restructuring (Details) (USD $)	3 Months Ended			9 Months Ended
	Sep. 30, 2012 Contracts		Sep. 30, 2011	Sep. 30, 2012 Contracts		Sep. 30, 2011
Financing Receivable, Modifications [Line Items]
Impaired Financing Receivable, Average Recorded Investment	$ 238,890,000		$ 359,625,000	$ 249,800,000		$ 488,889,000
Impaired Financing Receivable, Interest Income, Accrual Method	1,566,000		2,883,000	5,651,000		6,529,000
Financing Receivable Modifications Number Of Contracts2	19	[1]		56	[1]
Financing Receivable, Modifications, Pre-Modification Recorded Investment2	7,240,000	[1]		38,318,000	[1]
Financing Receivable, Modifications, Post-Modification Recorded Investment2	6,304,000	[1]		36,056,000	[1]
Troubled Debt Restructuring, Debtor, Current Period [Abstract]
Specific reserves on TDR's	2,200,000			2,200,000
Financing Receivable, Modifications, Number of Contracts	16			16
Troubled Debt Restructuring, Post Modification Investment by Class [Abstract]
Principal Deferred	6,220,000			6,220,000
Rate Reduction				22,406,000
Extension of Terms				6,415,000
Forgiveness of Principal And/Or Interest				1,015,000
Total	36,056,000			36,056,000
Residential Real Estate [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable Modifications Number Of Contracts2	15			27
Financing Receivable, Modifications, Pre-Modification Recorded Investment2	2,817,000			5,051,000
Financing Receivable, Modifications, Post-Modification Recorded Investment2	2,765,000			4,993,000
Troubled Debt Restructuring, Post Modification Investment by Class [Abstract]
Principal Deferred	407,000			407,000
Rate Reduction				4,586,000
Extension of Terms				0
Forgiveness of Principal And/Or Interest				0
Total	4,993,000			4,993,000
Investor CRE [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable Modifications Number Of Contracts2	0			1
Financing Receivable, Modifications, Pre-Modification Recorded Investment2	0			1,302,000
Financing Receivable, Modifications, Post-Modification Recorded Investment2	0			1,302,000
Troubled Debt Restructuring, Post Modification Investment by Class [Abstract]
Principal Deferred	0			0
Rate Reduction				1,302,000
Extension of Terms				0
Forgiveness of Principal And/Or Interest				0
Total	1,302,000			1,302,000
Multifamily [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable Modifications Number Of Contracts2	0			2
Financing Receivable, Modifications, Pre-Modification Recorded Investment2	0			2,379,000
Financing Receivable, Modifications, Post-Modification Recorded Investment2	0			2,374,000
Troubled Debt Restructuring, Post Modification Investment by Class [Abstract]
Principal Deferred	0			0
Rate Reduction				2,374,000
Extension of Terms				0
Forgiveness of Principal And/Or Interest				0
Total	2,374,000			2,374,000
Construction [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable Modifications Number Of Contracts2	2			4
Financing Receivable, Modifications, Pre-Modification Recorded Investment2	4,118,000			10,062,000
Financing Receivable, Modifications, Post-Modification Recorded Investment2	3,241,000			9,194,000
Troubled Debt Restructuring, Post Modification Investment by Class [Abstract]
Principal Deferred	0			0
Rate Reduction				3,261,000
Extension of Terms				5,933,000
Forgiveness of Principal And/Or Interest				0
Total	9,194,000			9,194,000
Owner Occupied CRE [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable Modifications Number Of Contracts2	1			10
Financing Receivable, Modifications, Pre-Modification Recorded Investment2	133,000			15,574,000
Financing Receivable, Modifications, Post-Modification Recorded Investment2	125,000			15,515,000
Troubled Debt Restructuring, Post Modification Investment by Class [Abstract]
Principal Deferred	5,813,000			5,813,000
Rate Reduction				9,393,000
Extension of Terms				0
Forgiveness of Principal And/Or Interest				309,000
Total	15,515,000			15,515,000
C&I [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable Modifications Number Of Contracts2	0			9
Financing Receivable, Modifications, Pre-Modification Recorded Investment2	0			3,482,000
Financing Receivable, Modifications, Post-Modification Recorded Investment2	0			2,206,000
Troubled Debt Restructuring, Post Modification Investment by Class [Abstract]
Principal Deferred	0			0
Rate Reduction				1,317,000
Extension of Terms				183,000
Forgiveness of Principal And/Or Interest				706,000
Total	2,206,000			2,206,000
Consumer Loan [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable Modifications Number Of Contracts2	1			3
Financing Receivable, Modifications, Pre-Modification Recorded Investment2	172,000			468,000
Financing Receivable, Modifications, Post-Modification Recorded Investment2	173,000			472,000
Troubled Debt Restructuring, Post Modification Investment by Class [Abstract]
Principal Deferred	0			0
Rate Reduction				173,000
Extension of Terms				299,000
Forgiveness of Principal And/Or Interest				0
Total	472,000			472,000
Loans Removed from TDR Status [Member]
Troubled Debt Restructuring, Post Modification Investment by Class [Abstract]
Total	25,100,000			25,100,000
Residential Real Estate [Member] | Residential Real Estate [Member]
Financing Receivable, Modifications [Line Items]
Impaired Financing Receivable, Average Recorded Investment	43,393,000		51,786,000	43,065,000		70,286,000
Impaired Financing Receivable, Interest Income, Accrual Method	$ 170,000		$ 247,000	$ 588,000		$ 567,000

[1] Amounts exclude specific loan loss reserves.