Loans and Allowance for Loan Losses (Details 10) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2013	Dec. 31, 2012
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans	$ 2,048,941	$ 2,035,258
Commercial Real Estate [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans	1,208,524	1,149,443
Commercial Real Estate [Member] | Acquired Non-Covered [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, 30 to 59 Days Past Due	328	1,255
Financing Receivable, Recorded Investment, 60 to 89 Days Past Due	0	0
Financing Receivable, Recorded Investment, Equal to Greater than 90 Days Past Due	0	0
Financing Receivable, Recorded Investment, Nonaccrual Status	603	1,179
Total Past Due	931	2,434
Financing Receivable, Recorded Investment, Current	188,769	208,155
Total Loans	189,700	210,589
Commercial Real Estate [Member] | Covered [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, 30 to 59 Days Past Due	782	5,257
Financing Receivable, Recorded Investment, 60 to 89 Days Past Due	0	84
Financing Receivable, Recorded Investment, Equal to Greater than 90 Days Past Due	0	0
Financing Receivable, Recorded Investment, Nonaccrual Status	17,585	12,730
Total Past Due	18,367	18,071
Financing Receivable, Recorded Investment, Current	89,877	96,686
Total Loans	108,244	114,757
Commercial Real Estate [Member] | Originated [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, 30 to 59 Days Past Due	1,729	731
Financing Receivable, Recorded Investment, 60 to 89 Days Past Due	869	1,080
Financing Receivable, Recorded Investment, Equal to Greater than 90 Days Past Due	659	0
Financing Receivable, Recorded Investment, Nonaccrual Status	4,663	3,522
Total Past Due	7,920	5,333
Financing Receivable, Recorded Investment, Current	902,660	818,764
Total Loans	910,580	824,097
Commercial Construction [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans	197,548	217,194
Commercial Construction [Member] | Acquired Non-Covered [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, 30 to 59 Days Past Due	0	315
Financing Receivable, Recorded Investment, 60 to 89 Days Past Due	0	0
Financing Receivable, Recorded Investment, Equal to Greater than 90 Days Past Due	0	0
Financing Receivable, Recorded Investment, Nonaccrual Status	245	0
Total Past Due	245	315
Financing Receivable, Recorded Investment, Current	26,555	29,553
Total Loans	26,800	29,868
Commercial Construction [Member] | Covered [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, 30 to 59 Days Past Due	156	0
Financing Receivable, Recorded Investment, 60 to 89 Days Past Due	21	113
Financing Receivable, Recorded Investment, Equal to Greater than 90 Days Past Due	0	0
Financing Receivable, Recorded Investment, Nonaccrual Status	6,851	14,961
Total Past Due	7,028	15,074
Financing Receivable, Recorded Investment, Current	16,342	18,373
Total Loans	23,370	33,447
Commercial Construction [Member] | Originated [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, 30 to 59 Days Past Due	0	369
Financing Receivable, Recorded Investment, 60 to 89 Days Past Due	0	0
Financing Receivable, Recorded Investment, Equal to Greater than 90 Days Past Due	0	0
Financing Receivable, Recorded Investment, Nonaccrual Status	8,210	7,586
Total Past Due	8,210	7,955
Financing Receivable, Recorded Investment, Current	139,168	145,924
Total Loans	147,378	153,879
Commercial and Industrial [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans	174,523	161,768
Commercial and Industrial [Member] | Acquired Non-Covered [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, 30 to 59 Days Past Due	1,547	113
Financing Receivable, Recorded Investment, 60 to 89 Days Past Due	0	0
Financing Receivable, Recorded Investment, Equal to Greater than 90 Days Past Due	164	0
Financing Receivable, Recorded Investment, Nonaccrual Status	304	248
Total Past Due	2,015	361
Financing Receivable, Recorded Investment, Current	17,257	26,097
Total Loans	19,272	26,458
Commercial and Industrial [Member] | Covered [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, 30 to 59 Days Past Due	41	55
Financing Receivable, Recorded Investment, 60 to 89 Days Past Due	0	0
Financing Receivable, Recorded Investment, Equal to Greater than 90 Days Past Due	0	0
Financing Receivable, Recorded Investment, Nonaccrual Status	1,482	1,170
Total Past Due	1,523	1,225
Financing Receivable, Recorded Investment, Current	7,460	9,673
Total Loans	8,983	10,898
Commercial and Industrial [Member] | Originated [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, 30 to 59 Days Past Due	263	243
Financing Receivable, Recorded Investment, 60 to 89 Days Past Due	75	8
Financing Receivable, Recorded Investment, Equal to Greater than 90 Days Past Due	0	0
Financing Receivable, Recorded Investment, Nonaccrual Status	312	1,121
Total Past Due	650	1,372
Financing Receivable, Recorded Investment, Current	145,618	123,040
Total Loans	146,268	124,412
Leases [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans	14,949	13,209
Leases [Member] | Originated [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, 30 to 59 Days Past Due	0	0
Financing Receivable, Recorded Investment, 60 to 89 Days Past Due	0	0
Financing Receivable, Recorded Investment, Equal to Greater than 90 Days Past Due	0	0
Financing Receivable, Recorded Investment, Nonaccrual Status	0	0
Total Past Due	0	0
Financing Receivable, Recorded Investment, Current	14,949	13,209
Total Loans	14,949	13,209
Residential Construction [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans	33,125	34,729
Residential Construction [Member] | Acquired Non-Covered [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, 30 to 59 Days Past Due	0	136
Financing Receivable, Recorded Investment, 60 to 89 Days Past Due	0	0
Financing Receivable, Recorded Investment, Equal to Greater than 90 Days Past Due	0	0
Financing Receivable, Recorded Investment, Nonaccrual Status	0	0
Total Past Due	0	136
Financing Receivable, Recorded Investment, Current	4,746	12,674
Total Loans	4,746	12,810
Residential Construction [Member] | Covered [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, 30 to 59 Days Past Due	0	0
Financing Receivable, Recorded Investment, 60 to 89 Days Past Due	0	0
Financing Receivable, Recorded Investment, Equal to Greater than 90 Days Past Due	0	0
Financing Receivable, Recorded Investment, Nonaccrual Status	0	0
Total Past Due	0	0
Financing Receivable, Recorded Investment, Current	212	215
Total Loans	212	215
Residential Construction [Member] | Originated [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, 30 to 59 Days Past Due	0	0
Financing Receivable, Recorded Investment, 60 to 89 Days Past Due	0	0
Financing Receivable, Recorded Investment, Equal to Greater than 90 Days Past Due	0	0
Financing Receivable, Recorded Investment, Nonaccrual Status	223	0
Total Past Due	223	0
Financing Receivable, Recorded Investment, Current	27,944	21,704
Total Loans	28,167	21,704
Residential Mortgage [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans	409,437	446,275
Residential Mortgage [Member] | Acquired Non-Covered [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, 30 to 59 Days Past Due	207	960
Financing Receivable, Recorded Investment, 60 to 89 Days Past Due	57	0
Financing Receivable, Recorded Investment, Equal to Greater than 90 Days Past Due	0	0
Financing Receivable, Recorded Investment, Nonaccrual Status	1,719	1,425
Total Past Due	1,983	2,385
Financing Receivable, Recorded Investment, Current	57,577	64,144
Total Loans	59,560	66,529
Residential Mortgage [Member] | Covered [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, 30 to 59 Days Past Due	359	3,593
Financing Receivable, Recorded Investment, 60 to 89 Days Past Due	432	352
Financing Receivable, Recorded Investment, Equal to Greater than 90 Days Past Due	0	0
Financing Receivable, Recorded Investment, Nonaccrual Status	18,326	18,057
Total Past Due	19,117	22,002
Financing Receivable, Recorded Investment, Current	57,039	65,013
Total Loans	76,156	87,015
Residential Mortgage [Member] | Originated [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, 30 to 59 Days Past Due	2,375	1,205
Financing Receivable, Recorded Investment, 60 to 89 Days Past Due	380	2,133
Financing Receivable, Recorded Investment, Equal to Greater than 90 Days Past Due	0	0
Financing Receivable, Recorded Investment, Nonaccrual Status	5,954	7,356
Total Past Due	8,709	10,694
Financing Receivable, Recorded Investment, Current	265,012	282,037
Total Loans	273,721	292,731
Consumer and Other [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans	10,835	12,640
Consumer and Other [Member] | Acquired Non-Covered [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, 30 to 59 Days Past Due	6	1
Financing Receivable, Recorded Investment, 60 to 89 Days Past Due	0	1
Financing Receivable, Recorded Investment, Equal to Greater than 90 Days Past Due	0	0
Financing Receivable, Recorded Investment, Nonaccrual Status	4	5
Total Past Due	10	7
Financing Receivable, Recorded Investment, Current	627	911
Total Loans	637	918
Consumer and Other [Member] | Covered [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, 30 to 59 Days Past Due	4	70
Financing Receivable, Recorded Investment, 60 to 89 Days Past Due	21	1
Financing Receivable, Recorded Investment, Equal to Greater than 90 Days Past Due	0	0
Financing Receivable, Recorded Investment, Nonaccrual Status	73	63
Total Past Due	98	134
Financing Receivable, Recorded Investment, Current	2,219	2,464
Total Loans	2,317	2,598
Consumer and Other [Member] | Originated [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, 30 to 59 Days Past Due	9	9
Financing Receivable, Recorded Investment, 60 to 89 Days Past Due	0	127
Financing Receivable, Recorded Investment, Equal to Greater than 90 Days Past Due	0	0
Financing Receivable, Recorded Investment, Nonaccrual Status	39	0
Total Past Due	48	136
Financing Receivable, Recorded Investment, Current	7,833	8,988
Total Loans	7,881	9,124
Total Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, 30 to 59 Days Past Due	7,806	14,312
Financing Receivable, Recorded Investment, 60 to 89 Days Past Due	1,855	3,899
Financing Receivable, Recorded Investment, Equal to Greater than 90 Days Past Due	823	0
Financing Receivable, Recorded Investment, Nonaccrual Status	66,593	69,423
Total Past Due	77,077	87,634
Financing Receivable, Recorded Investment, Current	1,971,864	1,947,624
Total Loans	2,048,941	2,035,258
Total Loans [Member] | Acquired Non-Covered [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, 30 to 59 Days Past Due	2,088	2,780
Financing Receivable, Recorded Investment, 60 to 89 Days Past Due	57	1
Financing Receivable, Recorded Investment, Equal to Greater than 90 Days Past Due	164	0
Financing Receivable, Recorded Investment, Nonaccrual Status	2,875	2,857
Total Past Due	5,184	5,638
Financing Receivable, Recorded Investment, Current	295,531	341,534
Total Loans	300,715	347,172
Total Loans [Member] | Covered [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, 30 to 59 Days Past Due	1,342	8,975
Financing Receivable, Recorded Investment, 60 to 89 Days Past Due	474	550
Financing Receivable, Recorded Investment, Equal to Greater than 90 Days Past Due	0	0
Financing Receivable, Recorded Investment, Nonaccrual Status	44,317	46,981
Total Past Due	46,133	56,506
Financing Receivable, Recorded Investment, Current	173,149	192,424
Total Loans	219,282	248,930
Total Loans [Member] | Originated [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, 30 to 59 Days Past Due	4,376	2,557
Financing Receivable, Recorded Investment, 60 to 89 Days Past Due	1,324	3,348
Financing Receivable, Recorded Investment, Equal to Greater than 90 Days Past Due	659	0
Financing Receivable, Recorded Investment, Nonaccrual Status	19,401	19,585
Total Past Due	25,760	25,490
Financing Receivable, Recorded Investment, Current	1,503,184	1,413,666
Total Loans	$ 1,528,944	$ 1,439,156