Allowance for Non-Covered Loan Loss and Credit Quality (Non-Covered Impaired Loans) (Details) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2013	Dec. 31, 2012
Financing Receivable, Impaired [Line Items]
Unpaid Principal Balance	$ 125,046	$ 161,176
Recorded Investment	110,118	142,409
Related Allowance	1,404	1,401
Commercial Real Estate [Member]
Financing Receivable, Impaired [Line Items]
Unpaid Principal Balance	105,867	136,472
Recorded Investment	97,382	123,835
Related Allowance	1,394	1,396
Term & Multifamily [Member]
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance	30,320	49,953
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance	36,692	41,016
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	27,685	43,406
Impaired Financing Receivable, with Related Allowance, Recorded Investment	36,692	41,016
Related Allowance	1,278	1,198
Construction & Development [Member]
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance	14,710	18,526
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance	1,091	1,091
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	13,690	15,638
Impaired Financing Receivable, with Related Allowance, Recorded Investment	1,091	1,091
Related Allowance	11	14
Residential Development [Member]
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance	10,876	9,293
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance	12,178	16,593
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	6,046	6,091
Impaired Financing Receivable, with Related Allowance, Recorded Investment	12,178	16,593
Related Allowance	105	184
Commercial [Member]
Financing Receivable, Impaired [Line Items]
Unpaid Principal Balance	19,020	24,507
Recorded Investment	12,736	18,378
Related Allowance	10	0
Term [Member]
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance	16,262	13,729
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance	300	0
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	10,535	10,532
Impaired Financing Receivable, with Related Allowance, Recorded Investment	300	0
Related Allowance	6	0
LOC & Other [Member]
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance	1,193	10,778
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance	1,265	0
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	636	7,846
Impaired Financing Receivable, with Related Allowance, Recorded Investment	1,265	0
Related Allowance	4	0
Residential [Member]
Financing Receivable, Impaired [Line Items]
Unpaid Principal Balance	159	176
Recorded Investment	0	175
Related Allowance	0	5
Mortgage [Member]
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance	0	0
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance	0	0
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	0	0
Impaired Financing Receivable, with Related Allowance, Recorded Investment	0	0
Related Allowance	0	0
Home Equity Loans & Lines [Member]
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance	159	50
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance	0	126
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	0	49
Impaired Financing Receivable, with Related Allowance, Recorded Investment	0	126
Related Allowance	0	5
Consumer & Other [Member]
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance	0	21
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance	0	0
Unpaid Principal Balance	0	21
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	0	21
Impaired Financing Receivable, with Related Allowance, Recorded Investment	0	0
Recorded Investment	0	21
Related Allowance	$ 0	$ 0