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Loans and Asset Quality Information (Schedule of Activity in Allowance for Loan Losses for Non-Covered Loans) (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended | 12 Months Ended
--- | --- | --- | ---
Jun. 30, 2015 | Jun. 30, 2014 | Jun. 30, 2015 | Jun. 30, 2014 | Dec. 31, 2014
Provisions | $ 841 | $ 3,659 | $ 677 | $ 7,234 |
Loans receivable: |  |  |  |  |
Ending balance - total | 2,411,960 | 2,433,734 | 2,411,960 | 2,433,734 | $ 2,395,228
Unamortized net deferred loan costs | 819 | 651 | 819 | 651 | 946
Total non-covered loans | 2,298,955 | 2,257,530 | 2,298,955 | 2,257,530 | 2,268,580
Non-covered [Member] |  |  |  |  |
Beginning balance | 33,770 | 44,706 | 38,345 | 44,263 | 44,263
Charge-offs | (5,403) | (4,254) | (10,763) | (7,722) | (16,288)
Recoveries | 787 | 356 | 1,468 | 902 | 1,546
Transfers from covered category |  |  |  |  | 1,737
Provisions | 1,001 | 1,158 | 1,105 | 4,523 | 7,087
Ending balance | 30,155 | 41,966 | 30,155 | 41,966 | 38,345
Ending balances: Allowance for loan losses |  |  |  |  |
Individually evaluated for impairment | 2,620 | 3,652 | 2,620 | 3,652 | 2,477
Collectively evaluated for impairment | 27,535 | 38,314 | 27,535 | 38,314 | 35,868
Loans receivable: |  |  |  |  |
Ending balance - total | 2,298,136 | 2,256,879 | 2,298,136 | 2,256,879 | 2,267,634
Unamortized net deferred loan costs | 819 | 651 | 819 | 651 | 946
Total non-covered loans | 2,298,955 | 2,257,530 | 2,298,955 | 2,257,530 | 2,268,580
Ending balances: Loans |  |  |  |  |
Individually evaluated for impairment | 46,970 | 48,227 | 46,970 | 48,227 | 53,531
Collectively evaluated for impairment | $ 2,250,552 | $ 2,208,652 | $ 2,250,552 | $ 2,208,652 | $ 2,213,456
Non-covered [Member] | Receivables acquired with deteriorated credit quality [Member] |  |  |  |  |
Beginning balance |  |  |  |  |
Ending balance |  |  |  |  |
Ending balances: Loans |  |  |  |  |
Loans acquired with deteriorated credit quality | $ 614 |  | $ 614 |  | $ 647
Total Non Covered [Member] |  |  |  |  |
Loans receivable: |  |  |  |  |
Total non-covered loans | 2,298,136 |  | 2,298,136 |  | 2,267,634
Commercial, financial and agricultural [Member] |  |  |  |  |
Beginning balance | 5,757 | $ 8,889 | 8,391 | $ 7,432 | 7,432
Charge-offs | (2,083) | (2,041) | (3,027) | (2,666) | (4,039)
Recoveries | 260 | 21 | 348 | 49 | 140
Transfers from covered category |  |  |  |  | 36
Provisions | 1,630 | 2,079 | (148) | 4,133 | 4,822
Ending balance | 5,564 | 8,948 | 5,564 | 8,948 | 8,391
Ending balances: Allowance for loan losses |  |  |  |  |
Individually evaluated for impairment | 134 | 290 | 134 | 290 | 211
Collectively evaluated for impairment | 5,430 | 8,658 | 5,430 | 8,658 | 8,180
Loans receivable: |  |  |  |  |
Ending balance - total | 179,909 | 165,021 | 179,909 | 165,021 | 160,878
Ending balances: Loans |  |  |  |  |
Individually evaluated for impairment | 764 | 679 | 764 | 679 | 784
Collectively evaluated for impairment | $ 182,257 | $ 177,991 | $ 182,257 | $ 177,991 | $ 165,944
Commercial, financial and agricultural [Member] | Receivables acquired with deteriorated credit quality [Member] |  |  |  |  |
Beginning balance |  |  |  |  |
Ending balance |  |  |  |  |
Ending balances: Loans |  |  |  |  |
Loans acquired with deteriorated credit quality |  |  |  |  |
Commercial, financial and agricultural [Member] | Non-covered [Member] |  |  |  |  |
Loans receivable: |  |  |  |  |
Ending balance - total | $ 183,021 | $ 178,670 | $ 183,021 | $ 178,670 | $ 166,728
Real Estate construction, land development and other land loans [Member] |  |  |  |  |
Beginning balance | 6,006 | 8,650 | 6,470 | 12,966 | 12,966
Charge-offs | (702) | (307) | (1,958) | (1,234) | (2,148)
Recoveries | 50 | 73 | 317 | 309 | 398
Transfers from covered category |  |  |  |  | 813
Provisions | (338) | (1,002) | 187 | (4,627) | (5,559)
Ending balance | 5,016 | 7,414 | 5,016 | 7,414 | 6,470
Ending balances: Allowance for loan losses |  |  |  |  |
Individually evaluated for impairment | 364 | 818 | 364 | 818 | 415
Collectively evaluated for impairment | 4,652 | 6,596 | 4,652 | 6,596 | 6,055
Loans receivable: |  |  |  |  |
Ending balance - total | 282,262 | 295,868 | 282,262 | 295,868 | 288,148
Ending balances: Loans |  |  |  |  |
Individually evaluated for impairment | 4,920 | 7,541 | 4,920 | 7,541 | 7,991
Collectively evaluated for impairment | $ 251,515 | $ 239,828 | $ 251,515 | $ 239,828 | $ 249,524
Real Estate construction, land development and other land loans [Member] | Receivables acquired with deteriorated credit quality [Member] |  |  |  |  |
Beginning balance |  |  |  |  |
Ending balance |  |  |  |  |
Ending balances: Loans |  |  |  |  |
Loans acquired with deteriorated credit quality |  |  |  |  |
Real Estate construction, land development and other land loans [Member] | Non-covered [Member] |  |  |  |  |
Loans receivable: |  |  |  |  |
Ending balance - total | $ 256,435 | $ 247,369 | $ 256,435 | $ 247,369 | $ 257,515
Real estate residential, farmland and mutli-family [Member] |  |  |  |  |
Beginning balance | 10,826 | 12,733 | 9,720 | 15,142 | 15,142
Charge-offs | (844) | (861) | (2,413) | (1,631) | (4,417)
Recoveries | 156 | 114 | 172 | 179 | 331
Transfers from covered category |  |  |  |  | 51
Provisions | (497) | (854) | 2,162 | (2,558) | (1,387)
Ending balance | 9,641 | 11,132 | 9,641 | 11,132 | 9,720
Ending balances: Allowance for loan losses |  |  |  |  |
Individually evaluated for impairment | 1,794 | 2,016 | 1,794 | 2,016 | 1,686
Collectively evaluated for impairment | 7,847 | 9,116 | 7,847 | 9,116 | 8,034
Ending balances: Loans |  |  |  |  |
Individually evaluated for impairment | 23,833 | 22,505 | 23,833 | 22,505 | 24,010
Collectively evaluated for impairment | $ 824,530 | $ 844,670 | $ 824,530 | $ 844,670 | $ 822,823
Real estate residential, farmland and mutli-family [Member] | Receivables acquired with deteriorated credit quality [Member] |  |  |  |  |
Beginning balance |  |  |  |  |
Ending balance |  |  |  |  |
Ending balances: Loans |  |  |  |  |
Loans acquired with deteriorated credit quality |  |  |  |  |
Real estate residential, farmland and mutli-family [Member] | Non-covered [Member] |  |  |  |  |
Loans receivable: |  |  |  |  |
Ending balance - total | $ 848,363 | $ 867,175 | $ 848,363 | $ 867,175 | $ 846,833
Total non-covered loans | 848,363 |  | 848,363 |  | 846,833
Real estate home equity lines of credit [Member] |  |  |  |  |
Beginning balance | 4,163 | 3,662 | 3,731 | 1,838 | 1,838
Charge-offs | (496) | (397) | (563) | (503) | (912)
Recoveries | 28 | 6 | 45 | 11 | $ 45
Transfers from covered category |  |  |  |  |
Provisions | (528) | 484 | (46) | 2,409 | $ 2,760
Ending balance | $ 3,167 | $ 3,755 | $ 3,167 | $ 3,755 | $ 3,731
Ending balances: Allowance for loan losses |  |  |  |  |
Individually evaluated for impairment |  |  |  |  |
Collectively evaluated for impairment | $ 3,167 | $ 3,755 | $ 3,167 | $ 3,755 | $ 3,731
Ending balances: Loans |  |  |  |  |
Individually evaluated for impairment |  | 483 |  | 483 | 476
Collectively evaluated for impairment | $ 198,345 | $ 200,027 | $ 198,345 | $ 200,027 | $ 198,101
Real estate home equity lines of credit [Member] | Receivables acquired with deteriorated credit quality [Member] |  |  |  |  |
Beginning balance |  |  |  |  |
Ending balance |  |  |  |  |
Ending balances: Loans |  |  |  |  |
Loans acquired with deteriorated credit quality |  |  |  |  |
Real estate home equity lines of credit [Member] | Non-covered [Member] |  |  |  |  |
Loans receivable: |  |  |  |  |
Ending balance - total | $ 198,345 | $ 200,510 | $ 198,345 | $ 200,510 | $ 198,577
Total non-covered loans | 198,345 |  | 198,345 |  | 198,577
Real estate mortgage commercial and other [Member] |  |  |  |  |
Beginning balance | 5,919 | 9,375 | 9,045 | 5,524 | 5,524
Charge-offs | (1,026) | (277) | (1,949) | (889) | (3,048)
Recoveries | 193 | 26 | 395 | 121 | 181
Transfers from covered category |  |  |  |  | 833
Provisions | (363) | 88 | (2,768) | 4,456 | 5,555
Ending balance | 4,723 | 9,212 | 4,723 | 9,212 | 9,045
Ending balances: Allowance for loan losses |  |  |  |  |
Individually evaluated for impairment | 328 | 528 | 328 | 528 | 165
Collectively evaluated for impairment | 4,395 | 8,684 | 4,395 | 8,684 | 8,880
Loans receivable: |  |  |  |  |
Ending balance - total | 904,496 | 868,599 | 904,496 | 868,599 | 882,127
Ending balances: Loans |  |  |  |  |
Individually evaluated for impairment | 17,453 | 17,009 | 17,453 | 17,009 | 20,910
Collectively evaluated for impairment | $ 750,926 | $ 700,896 | $ 750,926 | $ 700,896 | $ 733,228
Real estate mortgage commercial and other [Member] | Receivables acquired with deteriorated credit quality [Member] |  |  |  |  |
Beginning balance |  |  |  |  |
Ending balance |  |  |  |  |
Ending balances: Loans |  |  |  |  |
Loans acquired with deteriorated credit quality | $ 614 |  | $ 614 |  | $ 647
Real estate mortgage commercial and other [Member] | Non-covered [Member] |  |  |  |  |
Loans receivable: |  |  |  |  |
Ending balance - total | 768,993 | $ 717,905 | 768,993 | $ 717,905 | 754,785
Consumer [Member] |  |  |  |  |
Beginning balance | 795 | 1,030 | 841 | 1,513 | 1,513
Charge-offs | (252) | (371) | (853) | (799) | (1,724)
Recoveries | 100 | 116 | 191 | 233 | 451
Transfers from covered category |  |  |  |  | 4
Provisions | 305 | 131 | 769 | (41) | 597
Ending balance | $ 948 | $ 906 | $ 948 | $ 906 | $ 841
Ending balances: Allowance for loan losses |  |  |  |  |
Individually evaluated for impairment |  |  |  |  |
Collectively evaluated for impairment | $ 948 | $ 906 | $ 948 | $ 906 | $ 841
Ending balances: Loans |  |  |  |  |
Individually evaluated for impairment |  | 10 |  | 10 | 7
Collectively evaluated for impairment | $ 42,979 | $ 45,240 | $ 42,979 | $ 45,240 | $ 43,189
Consumer [Member] | Receivables acquired with deteriorated credit quality [Member] |  |  |  |  |
Beginning balance |  |  |  |  |
Ending balance |  |  |  |  |
Ending balances: Loans |  |  |  |  |
Loans acquired with deteriorated credit quality |  |  |  |  |
Consumer [Member] | Non-covered [Member] |  |  |  |  |
Loans receivable: |  |  |  |  |
Ending balance - total | $ 42,979 | $ 45,250 | $ 42,979 | $ 45,250 | $ 43,196
Total non-covered loans | 42,979 |  | 42,979 |  | 43,196
Unallocated [Member] |  |  |  |  |
Beginning balance | $ 304 | $ 367 | $ 147 | $ (152) | $ (152)
Charge-offs |  |  |  |  |
Recoveries |  |  |  |  |
Transfers from covered category |  |  |  |  |
Provisions | $ 792 | $ 232 | $ 949 | $ 751 | $ 299
Ending balance | $ 1,096 | $ 599 | $ 1,096 | $ 599 | $ 147
Ending balances: Allowance for loan losses |  |  |  |  |
Individually evaluated for impairment |  |  |  |  |
Collectively evaluated for impairment | $ 1,096 | $ 599 | $ 1,096 | $ 599 | $ 147
Ending balances: Loans |  |  |  |  |
Individually evaluated for impairment |  |  |  |  |
Collectively evaluated for impairment |  |  |  |  |
Unallocated [Member] | Receivables acquired with deteriorated credit quality [Member] |  |  |  |  |
Beginning balance |  |  |  |  |
Ending balance |  |  |  |  |
Ending balances: Loans |  |  |  |  |
Loans acquired with deteriorated credit quality |  |  |  |  |
Unallocated [Member] | Non-covered [Member] |  |  |  |  |
Loans receivable: |  |  |  |  |
Ending balance - total |  |  |  |  |

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