Loans and Credit Quality (Details 1) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012	Dec. 31, 2012
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Allowance	$ 28,405	$ 35,204	$ 27,561
Allowance for Doubtful Accounts Receivable [Roll Forward]
Beginning Balance	27,751	42,800
Charge-offs	(1,511)	(7,603)
Recoveries	354	205
Provision for credit losses	2,000	0
Ending Balance	28,594	35,402
Allowance for Loan and Lease Losses, Provision for Loss, Net	(1,157)	(7,398)
Consumer Portfolio Segment [Member]
Allowance for Doubtful Accounts Receivable [Roll Forward]
Beginning Balance	18,036	15,294
Charge-offs	(1,560)	(2,624)
Recoveries	172	65
Provision for credit losses	2,538	3,463
Ending Balance	19,186	16,198
Commercial Portfolio Segment [Member]
Allowance for Doubtful Accounts Receivable [Roll Forward]
Beginning Balance	9,715	27,506
Charge-offs	49	(4,979)
Recoveries	182	140
Provision for credit losses	(538)	(3,463)
Ending Balance	9,408	19,204
Residential Mortgage [Member] | Consumer Portfolio Segment [Member]
Allowance for Doubtful Accounts Receivable [Roll Forward]
Beginning Balance	13,388	10,671
Charge-offs	(721)	(1,275)
Recoveries	75	0
Provision for credit losses	1,736	2,271
Ending Balance	14,478	11,667
Home Equity Line of Credit [Member] | Consumer Portfolio Segment [Member]
Allowance for Doubtful Accounts Receivable [Roll Forward]
Beginning Balance	4,648	4,623
Charge-offs	(839)	(1,349)
Recoveries	97	65
Provision for credit losses	802	1,192
Ending Balance	4,708	4,531
Commercial Real Estate [Member] | Commercial Portfolio Segment [Member]
Allowance for Doubtful Accounts Receivable [Roll Forward]
Beginning Balance	5,312	4,321
Charge-offs	197	(26)
Recoveries	0	0
Provision for credit losses	449	603
Ending Balance	5,958	4,898
Multifamily Residential [Member] | Commercial Portfolio Segment [Member]
Allowance for Doubtful Accounts Receivable [Roll Forward]
Beginning Balance	622	335
Charge-offs	0	0
Recoveries	0	0
Provision for credit losses	13	11
Ending Balance	635	346
Commercial Real Estate Construction Financing Receivable [Member] | Commercial Portfolio Segment [Member]
Allowance for Doubtful Accounts Receivable [Roll Forward]
Beginning Balance	1,580	21,237
Charge-offs	(148)	(4,812)
Recoveries	70	128
Provision for credit losses	(608)	(3,837)
Ending Balance	894	12,716
Commercial Business [Member] | Commercial Portfolio Segment [Member]
Allowance for Doubtful Accounts Receivable [Roll Forward]
Beginning Balance	2,201	1,613
Charge-offs	0	(141)
Recoveries	112	12
Provision for credit losses	(392)	(240)
Ending Balance	1,921	1,244
Credit Risk [Member]
Allowance for Doubtful Accounts Receivable [Roll Forward]
Loss Contingency Accrual, at Carrying Value	$ 189	$ 198	$ 190