Loans (Summary of the Aging Status of the Recorded Investment in Loans by Portfolio Segment/Class) (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Originated Portfolio [Member]
Schedule representing the aging status of the recorded investment in loans by classes
Financing receivable, recorded investment 31 to 60 days past due	$ 19,581	$ 17,045
Financing receivable, recorded investment 61 to 89 days past due	7,316	3,679
Financing receivable, recorded investment accruing loans past due 90 days or more	1,997	2,359
Financing receivable, recorded investment, Non-accrual loans	61,897	71,298
Financing receivable recorded investment, Total past due	90,791	94,381
Financing receivable, recorded investment, Current	4,262,133	3,680,759
Financing receivable, recorded investment, Total loans	4,352,924	3,775,140
Originated Portfolio [Member] | Commercial [Member]
Schedule representing the aging status of the recorded investment in loans by classes
Financing receivable, recorded investment 31 to 60 days past due	4,748	3,999
Financing receivable, recorded investment 61 to 89 days past due	865	730
Financing receivable, recorded investment accruing loans past due 90 days or more	536	0
Financing receivable, recorded investment, Non-accrual loans	18,374	14,601
Financing receivable recorded investment, Total past due	24,523	19,330
Financing receivable, recorded investment, Current	1,068,170	877,280
Financing receivable, recorded investment, Total loans	1,092,693	896,610
Originated Portfolio [Member] | Real estate commercial [Member]
Schedule representing the aging status of the recorded investment in loans by classes
Financing receivable, recorded investment 31 to 60 days past due	8,560	5,852
Financing receivable, recorded investment 61 to 89 days past due	1,604	2,089
Financing receivable, recorded investment accruing loans past due 90 days or more	190	87
Financing receivable, recorded investment, Non-accrual loans	28,598	37,660
Financing receivable recorded investment, Total past due	38,952	45,688
Financing receivable, recorded investment, Current	1,046,235	910,477
Financing receivable, recorded investment, Total loans	1,085,187	956,165
Originated Portfolio [Member] | Real estate construction [Member]
Schedule representing the aging status of the recorded investment in loans by classes
Financing receivable, recorded investment 31 to 60 days past due	0	0
Financing receivable, recorded investment 61 to 89 days past due	4,107	0
Financing receivable, recorded investment accruing loans past due 90 days or more	0	0
Financing receivable, recorded investment, Non-accrual loans	371	1,217
Financing receivable recorded investment, Total past due	4,478	1,217
Financing receivable, recorded investment, Current	72,981	47,906
Financing receivable, recorded investment, Total loans	77,459	49,123
Originated Portfolio [Member] | Land development [Member]
Schedule representing the aging status of the recorded investment in loans by classes
Financing receivable, recorded investment 31 to 60 days past due	0	0
Financing receivable, recorded investment 61 to 89 days past due	0	0
Financing receivable, recorded investment accruing loans past due 90 days or more	0	0
Financing receivable, recorded investment, Non-accrual loans	2,309	4,184
Financing receivable recorded investment, Total past due	2,309	4,184
Financing receivable, recorded investment, Current	10,971	21,874
Financing receivable, recorded investment, Total loans	13,280	26,058
Originated Portfolio [Member] | Real estate residential [Member]
Schedule representing the aging status of the recorded investment in loans by classes
Financing receivable, recorded investment 31 to 60 days past due	2,191	3,161
Financing receivable, recorded investment 61 to 89 days past due	103	55
Financing receivable, recorded investment accruing loans past due 90 days or more	537	1,503
Financing receivable, recorded investment, Non-accrual loans	8,921	10,164
Financing receivable recorded investment, Total past due	11,752	14,883
Financing receivable, recorded investment, Current	937,129	854,987
Financing receivable, recorded investment, Total loans	948,881	869,870
Originated Portfolio [Member] | Consumer installment [Member]
Schedule representing the aging status of the recorded investment in loans by classes
Financing receivable, recorded investment 31 to 60 days past due	2,630	2,415
Financing receivable, recorded investment 61 to 89 days past due	359	378
Financing receivable, recorded investment accruing loans past due 90 days or more	0	0
Financing receivable, recorded investment, Non-accrual loans	676	739
Financing receivable recorded investment, Total past due	3,665	3,532
Financing receivable, recorded investment, Current	639,381	540,546
Financing receivable, recorded investment, Total loans	643,046	544,078
Originated Portfolio [Member] | Home equity [Member]
Schedule representing the aging status of the recorded investment in loans by classes
Financing receivable, recorded investment 31 to 60 days past due	1,452	1,618
Financing receivable, recorded investment 61 to 89 days past due	278	427
Financing receivable, recorded investment accruing loans past due 90 days or more	734	769
Financing receivable, recorded investment, Non-accrual loans	2,648	2,733
Financing receivable recorded investment, Total past due	5,112	5,547
Financing receivable, recorded investment, Current	487,266	427,689
Financing receivable, recorded investment, Total loans	492,378	433,236
Acquired Portfolio [Member]
Schedule representing the aging status of the recorded investment in loans by classes
Financing receivable, recorded investment 31 to 60 days past due	397	625
Financing receivable, recorded investment 61 to 89 days past due	184	15
Financing receivable, recorded investment accruing loans past due 90 days or more	9,787	9,099
Financing receivable, recorded investment, Non-accrual loans	0	0
Financing receivable recorded investment, Total past due	10,368	9,739
Financing receivable, recorded investment, Current	284,329	382,856
Financing receivable, recorded investment, Total loans	294,697	392,595
Acquired Portfolio [Member] | Commercial [Member]
Schedule representing the aging status of the recorded investment in loans by classes
Financing receivable, recorded investment 31 to 60 days past due	0	0
Financing receivable, recorded investment 61 to 89 days past due	0	0
Financing receivable, recorded investment accruing loans past due 90 days or more	5,656	2,834
Financing receivable, recorded investment, Non-accrual loans	0	0
Financing receivable recorded investment, Total past due	5,656	2,834
Financing receivable, recorded investment, Current	77,958	103,278
Financing receivable, recorded investment, Total loans	83,614	106,112
Acquired Portfolio [Member] | Real estate commercial [Member]
Schedule representing the aging status of the recorded investment in loans by classes
Financing receivable, recorded investment 31 to 60 days past due	0	287
Financing receivable, recorded investment 61 to 89 days past due	133	15
Financing receivable, recorded investment accruing loans past due 90 days or more	1,695	3,139
Financing receivable, recorded investment, Non-accrual loans	0	0
Financing receivable recorded investment, Total past due	1,828	3,441
Financing receivable, recorded investment, Current	145,643	202,255
Financing receivable, recorded investment, Total loans	147,471	205,696
Acquired Portfolio [Member] | Real estate construction [Member]
Schedule representing the aging status of the recorded investment in loans by classes
Financing receivable, recorded investment 31 to 60 days past due	0	0
Financing receivable, recorded investment 61 to 89 days past due	0	0
Financing receivable, recorded investment accruing loans past due 90 days or more	0	0
Financing receivable, recorded investment, Non-accrual loans	0	0
Financing receivable recorded investment, Total past due	0	0
Financing receivable, recorded investment, Current	12,336	13,566
Financing receivable, recorded investment, Total loans	12,336	13,566
Acquired Portfolio [Member] | Land development [Member]
Schedule representing the aging status of the recorded investment in loans by classes
Financing receivable, recorded investment 31 to 60 days past due	0	0
Financing receivable, recorded investment 61 to 89 days past due	0	0
Financing receivable, recorded investment accruing loans past due 90 days or more	2,332	2,834
Financing receivable, recorded investment, Non-accrual loans	0	0
Financing receivable recorded investment, Total past due	2,332	2,834
Financing receivable, recorded investment, Current	4,454	8,656
Financing receivable, recorded investment, Total loans	6,786	11,490
Acquired Portfolio [Member] | Real estate residential [Member]
Schedule representing the aging status of the recorded investment in loans by classes
Financing receivable, recorded investment 31 to 60 days past due	0	123
Financing receivable, recorded investment 61 to 89 days past due	0	0
Financing receivable, recorded investment accruing loans past due 90 days or more	61	122
Financing receivable, recorded investment, Non-accrual loans	0	0
Financing receivable recorded investment, Total past due	61	245
Financing receivable, recorded investment, Current	11,481	13,720
Financing receivable, recorded investment, Total loans	11,542	13,965
Acquired Portfolio [Member] | Consumer installment [Member]
Schedule representing the aging status of the recorded investment in loans by classes
Financing receivable, recorded investment 31 to 60 days past due	3	10
Financing receivable, recorded investment 61 to 89 days past due	51	0
Financing receivable, recorded investment accruing loans past due 90 days or more	0	0
Financing receivable, recorded investment, Non-accrual loans	0	0
Financing receivable recorded investment, Total past due	54	10
Financing receivable, recorded investment, Current	1,669	1,948
Financing receivable, recorded investment, Total loans	1,723	1,958
Acquired Portfolio [Member] | Home equity [Member]
Schedule representing the aging status of the recorded investment in loans by classes
Financing receivable, recorded investment 31 to 60 days past due	394	205
Financing receivable, recorded investment 61 to 89 days past due	0	0
Financing receivable, recorded investment accruing loans past due 90 days or more	43	170
Financing receivable, recorded investment, Non-accrual loans	0	0
Financing receivable recorded investment, Total past due	437	375
Financing receivable, recorded investment, Current	30,788	39,433
Financing receivable, recorded investment, Total loans	$ 31,225	$ 39,808