Allowance for Non-Covered Loan Loss and Credit Quality (Non-Covered Impaired Loans) (Details) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2013	Dec. 31, 2012
Financing Receivable, Impaired [Line Items]
Unpaid Principal Balance	$ 152,705	$ 161,176
Recorded Investment	127,336	142,409
Related Allowance	1,864	1,401
Commercial Real Estate [Member]
Financing Receivable, Impaired [Line Items]
Unpaid Principal Balance	121,566	136,472
Recorded Investment	111,814	123,835
Related Allowance	1,849	1,396
Term & Multifamily [Member]
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance	48,092	49,953
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance	35,829	41,016
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	42,893	43,406
Impaired Financing Receivable, with Related Allowance, Recorded Investment	35,829	41,016
Related Allowance	1,326	1,198
Construction & Development [Member]
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance	9,639	18,526
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance	3,814	1,091
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	8,619	15,638
Impaired Financing Receivable, with Related Allowance, Recorded Investment	3,814	1,091
Related Allowance	379	14
Residential Development [Member]
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance	8,639	9,293
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance	15,553	16,593
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	5,106	6,091
Impaired Financing Receivable, with Related Allowance, Recorded Investment	15,553	16,593
Related Allowance	144	184
Commercial [Member]
Financing Receivable, Impaired [Line Items]
Unpaid Principal Balance	30,501	24,507
Recorded Investment	15,045	18,378
Related Allowance	4	0
Term [Member]
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance	26,816	13,729
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance	351	0
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	12,060	10,532
Impaired Financing Receivable, with Related Allowance, Recorded Investment	351	0
Related Allowance	0	0
LOC & Other [Member]
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance	2,064	10,778
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance	1,270	0
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	1,364	7,846
Impaired Financing Receivable, with Related Allowance, Recorded Investment	1,270	0
Related Allowance	4	0
Residential [Member]
Financing Receivable, Impaired [Line Items]
Unpaid Principal Balance	638	176
Recorded Investment	477	175
Related Allowance	11	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	477	0
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	0	0
Impaired Financing Receivable, with Related Allowance, Recorded Investment	477	0
Related Allowance	11	0
Home Equity Loans & Lines [Member]
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance	161	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