Loans Receivable (Aging of recorded investment in gross loans) (Details) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2014	Dec. 31, 2013
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans	$ 4,589,736	$ 4,669,192
Commercial Secured [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable Recorded Investment 90 Days Past Due And Stil lAccruing		0
Originated Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
30 - 59 Days Past Due	96,819	87,623
60 - 89 Days Past Due	44,972	31,619
90+ Days Past Due	111,076	95,052
Total Past Due	252,867	214,294
Current	2,474,248	2,187,246
Total Loans	2,727,115	2,401,540
Financing Receivable Recorded Investment 90 Days Past Due And Stil lAccruing	6,685	2,875
Originated Loans [Member] | Mortgages [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
30 - 59 Days Past Due	49,646	52,364
60 - 89 Days Past Due	26,590	19,664
90+ Days Past Due	92,386	74,156
Total Past Due	168,622	146,184
Current	622,484	620,081
Total Loans	791,106	766,265
Financing Receivable Recorded Investment 90 Days Past Due And Stil lAccruing	6,685	2,875
Originated Loans [Member] | Traditional loan
Financing Receivable, Recorded Investment, Past Due [Line Items]
30 - 59 Days Past Due	38,540	39,388
60 - 89 Days Past Due	18,449	12,942
90+ Days Past Due	34,547	23,595
Total Past Due	91,536	75,925
Current	531,413	526,263
Total Loans	622,949	602,188
Financing Receivable Recorded Investment 90 Days Past Due And Stil lAccruing	912	690
Originated Loans [Member] | Originated Up To The Year 2002 [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
30 - 59 Days Past Due	5,996	6,697
60 - 89 Days Past Due	3,283	1,635
90+ Days Past Due	3,424	3,408
Total Past Due	12,703	11,740
Current	55,635	64,772
Total Loans	68,338	76,512
Financing Receivable Recorded Investment 90 Days Past Due And Stil lAccruing	141	79
Originated Loans [Member] | Originated In The Years 2003 And 2004 [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
30 - 59 Days Past Due	6,679	4,722
60 - 89 Days Past Due	1,730	2,163
90+ Days Past Due	3,471	1,845
Total Past Due	11,880	8,730
Current	50,464	56,387
Total Loans	62,344	65,117
Financing Receivable Recorded Investment 90 Days Past Due And Stil lAccruing	0	0
Originated Loans [Member] | Originated In The Year 2005 [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
30 - 59 Days Past Due	7,368	8,527
60 - 89 Days Past Due	3,295	2,119
90+ Days Past Due	8,258	4,808
Total Past Due	18,921	15,454
Current	69,510	74,087
Total Loans	88,431	89,541
Financing Receivable Recorded Investment 90 Days Past Due And Stil lAccruing	89	0
Originated Loans [Member] | Originated In The Year 2006 [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
30 - 59 Days Past Due	10,274	12,055
60 - 89 Days Past Due	5,678	4,312
90+ Days Past Due	6,041	4,418
Total Past Due	21,993	20,785
Current	91,218	99,537
Total Loans	113,211	120,322
Financing Receivable Recorded Investment 90 Days Past Due And Stil lAccruing	114	0
Originated Loans [Member] | Originated In The Years 2007 2008 And 2009 [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
30 - 59 Days Past Due	3,285	3,464
60 - 89 Days Past Due	3,095	1,104
90+ Days Past Due	7,647	4,663
Total Past Due	14,027	9,231
Current	83,036	91,919
Total Loans	97,063	101,150
Financing Receivable Recorded Investment 90 Days Past Due And Stil lAccruing	59	152
Originated Loans [Member] | Originated In The Years 2010 2011 2012 2013 And 2014 [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
30 - 59 Days Past Due	4,938	3,923
60 - 89 Days Past Due	1,368	1,609
90+ Days Past Due	5,706	4,453
Total Past Due	12,012	9,985
Current	181,550	139,561
Total Loans	193,562	149,546
Financing Receivable Recorded Investment 90 Days Past Due And Stil lAccruing	509	459
Originated Loans [Member] | NonTraditional Mortgage [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
30 - 59 Days Past Due	1,084	3,217
60 - 89 Days Past Due	783	1,162
90+ Days Past Due	3,022	2,311
Total Past Due	4,889	6,690
Current	32,886	35,412
Total Loans	37,775	42,102
Financing Receivable Recorded Investment 90 Days Past Due And Stil lAccruing	0	0
Originated Loans [Member] | Loss Mitigation Program [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
30 - 59 Days Past Due	10,022	9,759
60 - 89 Days Past Due	7,358	5,560
90+ Days Past Due	14,625	13,191
Total Past Due	32,005	28,510
Current	57,578	57,808
Total Loans	89,583	86,318
Financing Receivable Recorded Investment 90 Days Past Due And Stil lAccruing	5,773	2,185
Originated Loans [Member] | Home equity secured personal loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
30 - 59 Days Past Due	0	0
60 - 89 Days Past Due	0	0
90+ Days Past Due	126	138
Total Past Due	126	138
Current	607	598
Total Loans	733	736
Financing Receivable Recorded Investment 90 Days Past Due And Stil lAccruing	0	0
Originated Loans [Member] | GNMA's Buy Back Option related
Financing Receivable, Recorded Investment, Past Due [Line Items]
30 - 59 Days Past Due	0	0
60 - 89 Days Past Due	0	0
90+ Days Past Due	40,066	34,921
Total Past Due	40,066	34,921
Current	0	0
Total Loans	40,066	34,921
Financing Receivable Recorded Investment 90 Days Past Due And Stil lAccruing	0	0
Originated Loans [Member] | Commercial Loan [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans	1,217,235	1,127,657
Originated Loans [Member] | Commercial Secured [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
30 - 59 Days Past Due	1,164	5,609
60 - 89 Days Past Due	1,200	1,015
90+ Days Past Due	7,896	13,484
Total Past Due	10,260	20,108
Current	460,618	380,453
Total Loans	470,878	400,561
Financing Receivable Recorded Investment 90 Days Past Due And Stil lAccruing	0
Originated Loans [Member] | Corporate Commercial Secured [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
30 - 59 Days Past Due	0	0
60 - 89 Days Past Due	0	0
90+ Days Past Due	0	0
Total Past Due	0	0
Current	113,976	54,796
Total Loans	113,976	54,796
Financing Receivable Recorded Investment 90 Days Past Due And Stil lAccruing	0	0
Originated Loans [Member] | Institutional Commercial Secured [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
30 - 59 Days Past Due	0	0
60 - 89 Days Past Due	0	0
90+ Days Past Due	0	0
Total Past Due	0	0
Current	37,177	4,050
Total Loans	37,177	4,050
Financing Receivable Recorded Investment 90 Days Past Due And Stil lAccruing	0	0
Originated Loans [Member] | Middle Market Commercial Secured [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
30 - 59 Days Past Due	0	1,356
60 - 89 Days Past Due	1,071	0
90+ Days Past Due	638	10,294
Total Past Due	1,709	11,650
Current	142,830	149,933
Total Loans	144,539	161,583
Financing Receivable Recorded Investment 90 Days Past Due And Stil lAccruing	0	0
Originated Loans [Member] | Retail Commercial Secured [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
30 - 59 Days Past Due	1,164	4,253
60 - 89 Days Past Due	129	1,015
90+ Days Past Due	7,258	3,190
Total Past Due	8,551	8,458
Current	153,091	158,184
Total Loans	161,642	166,642
Financing Receivable Recorded Investment 90 Days Past Due And Stil lAccruing	0	0
Originated Loans [Member] | Floor Plan Commercial Secured [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
30 - 59 Days Past Due	0	0
60 - 89 Days Past Due	0	0
90+ Days Past Due	0	0
Total Past Due	0	0
Current	1,666	1,835
Total Loans	1,666	1,835
Financing Receivable Recorded Investment 90 Days Past Due And Stil lAccruing	0	0
Originated Loans [Member] | Real Estate Commercial Secured [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
30 - 59 Days Past Due	0	0
60 - 89 Days Past Due	0	0
90+ Days Past Due	0	0
Total Past Due	0	0
Current	11,878	11,655
Total Loans	11,878	11,655
Financing Receivable Recorded Investment 90 Days Past Due And Stil lAccruing	0	0
Originated Loans [Member] | Other Commercial and Industrial[Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
30 - 59 Days Past Due	267	2,105
60 - 89 Days Past Due	144	851
90+ Days Past Due	1,437	1,673
Total Past Due	1,848	4,629
Current	744,509	722,467
Total Loans	746,357	727,096
Financing Receivable Recorded Investment 90 Days Past Due And Stil lAccruing	0	0
Originated Loans [Member] | Corporate Other Commercial [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
30 - 59 Days Past Due	0	236
60 - 89 Days Past Due	0	0
90+ Days Past Due	0
Total Past Due	0	236
Current	60,402	32,362
Total Loans	60,402	32,598
Financing Receivable Recorded Investment 90 Days Past Due And Stil lAccruing	0	0
Originated Loans [Member] | Institutional Other Commercial [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
30 - 59 Days Past Due	0
60 - 89 Days Past Due	0
90+ Days Past Due	0	0
Total Past Due	0	0
Current	482,277	536,445
Total Loans	482,277	536,445
Financing Receivable Recorded Investment 90 Days Past Due And Stil lAccruing	0	0
Originated Loans [Member] | Middle Market Other Commercial [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
30 - 59 Days Past Due	0	0
60 - 89 Days Past Due	0	299
90+ Days Past Due	628	1,134
Total Past Due	628	1,433
Current	82,577	57,464
Total Loans	83,205	58,897
Financing Receivable Recorded Investment 90 Days Past Due And Stil lAccruing	0	0
Originated Loans [Member] | Retail Other Commercial [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
30 - 59 Days Past Due	267	1,830
60 - 89 Days Past Due	144	552
90+ Days Past Due	809	539
Total Past Due	1,220	2,921
Current	79,592	58,589
Total Loans	80,812	61,510
Financing Receivable Recorded Investment 90 Days Past Due And Stil lAccruing	0	0
Originated Loans [Member] | Floor Plan Other Commercial [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
30 - 59 Days Past Due	0	39
60 - 89 Days Past Due	0	0
90+ Days Past Due	0	0
Total Past Due	0	39
Current	39,661	37,607
Total Loans	39,661	37,646
Financing Receivable Recorded Investment 90 Days Past Due And Stil lAccruing	0	0
Originated Loans [Member] | Consumer Loan [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
30 - 59 Days Past Due	2,205	2,014
60 - 89 Days Past Due	1,082	652
90+ Days Past Due	1,078	650
Total Past Due	4,365	3,316
Current	171,517	124,428
Total Loans	175,882	127,744
Financing Receivable Recorded Investment 90 Days Past Due And Stil lAccruing	0	0
Originated Loans [Member] | Credit Cards [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
30 - 59 Days Past Due	238	287
60 - 89 Days Past Due	189	168
90+ Days Past Due	408	232
Total Past Due	835	687
Current	17,022	14,554
Total Loans	17,857	15,241
Financing Receivable Recorded Investment 90 Days Past Due And Stil lAccruing	0	0
Originated Loans [Member] | Overdrafts [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
30 - 59 Days Past Due	20	46
60 - 89 Days Past Due	2	4
90+ Days Past Due	1	0
Total Past Due	23	50
Current	317	322
Total Loans	340	372
Financing Receivable Recorded Investment 90 Days Past Due And Stil lAccruing	0	0
Originated Loans [Member] | Unsecured personal lines of credit [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
30 - 59 Days Past Due	67	33
60 - 89 Days Past Due	132	38
90+ Days Past Due	29	66
Total Past Due	228	137
Current	1,823	1,844
Total Loans	2,051	1,981
Financing Receivable Recorded Investment 90 Days Past Due And Stil lAccruing	0	0
Originated Loans [Member] | Unsecured personal loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
30 - 59 Days Past Due	1,666	1,324
60 - 89 Days Past Due	627	399
90+ Days Past Due	604	352
Total Past Due	2,897	2,075
Current	135,711	92,485
Total Loans	138,608	94,560
Financing Receivable Recorded Investment 90 Days Past Due And Stil lAccruing	0	0
Originated Loans [Member] | Cash collateral personal loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
30 - 59 Days Past Due	214	324
60 - 89 Days Past Due	132	43
90+ Days Past Due	36	0
Total Past Due	382	367
Current	16,644	15,223
Total Loans	17,026	15,590
Financing Receivable Recorded Investment 90 Days Past Due And Stil lAccruing	0	0
Originated Loans [Member] | Auto and Leasing loans receivable
Financing Receivable, Recorded Investment, Past Due [Line Items]
30 - 59 Days Past Due	43,537	25,531
60 - 89 Days Past Due	15,956	9,437
90+ Days Past Due	8,279	5,089
Total Past Due	67,772	40,057
Current	475,120	339,817
Total Loans	542,892	379,874
Financing Receivable Recorded Investment 90 Days Past Due And Stil lAccruing	0	0
Non-covered acquired loans accounted for under ASC 310-20
Financing Receivable, Recorded Investment, Past Due [Line Items]
30 - 59 Days Past Due	13,423	17,144
60 - 89 Days Past Due	5,011	6,848
90+ Days Past Due	3,933	5,413
Total Past Due	22,367	29,405
Current	262,709	406,034
Total Loans	285,076	435,439
Financing Receivable Recorded Investment 90 Days Past Due And Stil lAccruing	0	0
Non-covered acquired loans accounted for under ASC 310-20 | Commercial Loan [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
30 - 59 Days Past Due	266	2,197
60 - 89 Days Past Due	113	2,025
90+ Days Past Due	1,002	1,646
Total Past Due	1,381	5,868
Current	25,603	71,813
Total Loans	26,984	77,681
Financing Receivable Recorded Investment 90 Days Past Due And Stil lAccruing	0	0
Non-covered acquired loans accounted for under ASC 310-20 | Commercial Secured [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
30 - 59 Days Past Due	0	431
60 - 89 Days Past Due	0	331
90+ Days Past Due	443	969
Total Past Due	443	1,731
Current	8,200	16,882
Total Loans	8,643	18,613
Financing Receivable Recorded Investment 90 Days Past Due And Stil lAccruing	0	0
Non-covered acquired loans accounted for under ASC 310-20 | Corporate Commercial Secured [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
30 - 59 Days Past Due	0	0
60 - 89 Days Past Due	0	0
90+ Days Past Due	0	0
Total Past Due	0	0
Current	3,746	10,166
Total Loans	3,746	10,166
Financing Receivable Recorded Investment 90 Days Past Due And Stil lAccruing	0	0
Non-covered acquired loans accounted for under ASC 310-20 | Retail Commercial Secured [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
30 - 59 Days Past Due	0	431
60 - 89 Days Past Due	0	331
90+ Days Past Due	342	868
Total Past Due	342	1,630
Current	482	4,140
Total Loans	824	5,770
Financing Receivable Recorded Investment 90 Days Past Due And Stil lAccruing	0	0
Non-covered acquired loans accounted for under ASC 310-20 | Floor Plan Commercial Secured [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
30 - 59 Days Past Due	0	0
60 - 89 Days Past Due	0	0
90+ Days Past Due	101	101
Total Past Due	101	101
Current	3,972	2,576
Total Loans	4,073	2,677
Financing Receivable Recorded Investment 90 Days Past Due And Stil lAccruing	0	0
Non-covered acquired loans accounted for under ASC 310-20 | Other Commercial and Industrial[Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
30 - 59 Days Past Due	266	1,766
60 - 89 Days Past Due	113	1,694
90+ Days Past Due	559	677
Total Past Due	938	4,137
Current	17,403	54,931
Total Loans	18,341	59,068
Financing Receivable Recorded Investment 90 Days Past Due And Stil lAccruing	0	0
Non-covered acquired loans accounted for under ASC 310-20 | Corporate Other Commercial [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
30 - 59 Days Past Due	0	14
60 - 89 Days Past Due	0	83
90+ Days Past Due	0	0
Total Past Due	0	97
Current	2,915	9,696
Total Loans	2,915	9,793
Financing Receivable Recorded Investment 90 Days Past Due And Stil lAccruing	0	0
Non-covered acquired loans accounted for under ASC 310-20 | Institutional Other Commercial [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
30 - 59 Days Past Due	0
60 - 89 Days Past Due	0
90+ Days Past Due	0
Total Past Due	0
Current	0
Total Loans	0
Financing Receivable Recorded Investment 90 Days Past Due And Stil lAccruing	0
Non-covered acquired loans accounted for under ASC 310-20 | Retail Other Commercial [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
30 - 59 Days Past Due	169	1,717
60 - 89 Days Past Due	73	1,418
90+ Days Past Due	451	659
Total Past Due	693	3,794
Current	7,328	23,544
Total Loans	8,021	27,338
Financing Receivable Recorded Investment 90 Days Past Due And Stil lAccruing	0	0
Non-covered acquired loans accounted for under ASC 310-20 | Floor Plan Other Commercial [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
30 - 59 Days Past Due	97	35
60 - 89 Days Past Due	40	193
90+ Days Past Due	108	18
Total Past Due	245	246
Current	7,160	21,691
Total Loans	7,405	21,937
Financing Receivable Recorded Investment 90 Days Past Due And Stil lAccruing	0	0
Non-covered acquired loans accounted for under ASC 310-20 | Consumer Loan [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
30 - 59 Days Past Due	1,785	2,413
60 - 89 Days Past Due	761	1,207
90+ Days Past Due	1,394	2,159
Total Past Due	3,940	5,779
Current	43,344	50,395
Total Loans	47,284	56,174
Financing Receivable Recorded Investment 90 Days Past Due And Stil lAccruing	0	0
Non-covered acquired loans accounted for under ASC 310-20 | Credit Cards [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
30 - 59 Days Past Due	1,625	2,217
60 - 89 Days Past Due	678	1,200
90+ Days Past Due	1,328	2,068
Total Past Due	3,631	5,485
Current	40,051	46,714
Total Loans	43,682	52,199
Financing Receivable Recorded Investment 90 Days Past Due And Stil lAccruing	0	0
Non-covered acquired loans accounted for under ASC 310-20 | Unsecured personal loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
30 - 59 Days Past Due	160	196
60 - 89 Days Past Due	83	7
90+ Days Past Due	66	91
Total Past Due	309	294
Current	3,293	3,681
Total Loans	3,602	3,975
Financing Receivable Recorded Investment 90 Days Past Due And Stil lAccruing	0	0
Non-covered acquired loans accounted for under ASC 310-20 | Automobile Loan [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
30 - 59 Days Past Due	11,372	12,534
60 - 89 Days Past Due	4,137	3,616
90+ Days Past Due	1,537	1,608
Total Past Due	17,046	17,758
Current	193,762	283,826
Total Loans	210,808	301,584
Financing Receivable Recorded Investment 90 Days Past Due And Stil lAccruing	$ 0	$ 0