Quarterly report pursuant to Section 13 or 15(d)

LOANS (Analysis of Allowance For Loan Losses By Portfolio Segment) (Detail)

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LOANS (Analysis of Allowance For Loan Losses By Portfolio Segment) (Detail) (USD $)
In Thousands, unless otherwise specified
3 Months Ended 9 Months Ended
Sep. 30, 2013
Sep. 30, 2012
Sep. 30, 2013
Sep. 30, 2012
Dec. 31, 2012
Allowance for loan losses:          
Begining Balance $ 28,757 $ 23,239 $ 26,258 $ 22,030  
Chargeoffs (3,031) (474) (8,297) (4,851)  
Recoveries 167 654 314 774  
Provision 3,034 1,185 10,652 6,651  
Ending Balance 28,927 24,604 28,927 24,604  
Individually Evaluated for Impairment 5,348   5,348   3,511
Collectively Evaluated for Impairment 23,579   23,579   22,747
Ending Balance 2,731,973   2,731,973   2,363,182
Individually Evaluated for Impairment 36,141   36,141   37,394
Collectively Evaluated for Impairment 2,695,832   2,695,832   2,325,788
Commercial, financial and agricultural Financing Receivable [Member]
         
Allowance for loan losses:          
Begining Balance 11,140 6,511 8,233 6,627  
Chargeoffs (849) (349) (1,838) (898)  
Recoveries 13 24 50 124  
Provision 739 1,090 4,598 1,423  
Ending Balance 11,043 7,276 11,043 7,276  
Individually Evaluated for Impairment 1,817   1,817   577
Collectively Evaluated for Impairment 9,226   9,226   7,656
Ending Balance 1,222,953   1,222,953   1,030,990
Individually Evaluated for Impairment 4,048   4,048   3,910
Collectively Evaluated for Impairment 1,218,905   1,218,905   1,027,080
Commercial Real Estate Construction Financing Receivable [Member]
         
Allowance for loan losses:          
Begining Balance 5,453 7,582 6,511 6,542  
Chargeoffs (394) (16) (4,271) (2,935)  
Recoveries 124 47 226 55  
Provision 307 (1,560) 3,024 2,391  
Ending Balance 5,490 6,053 5,490 6,053  
Individually Evaluated for Impairment 1,363   1,363   1,013
Collectively Evaluated for Impairment 4,127   4,127   5,498
Ending Balance 156,595   156,595   158,361
Individually Evaluated for Impairment 11,010   11,010   14,422
Collectively Evaluated for Impairment 145,585   145,585   143,939
Residential Real Estate Mortgage Loans [Member]
         
Allowance for loan losses:          
Begining Balance 6,039 3,640 4,912 3,295  
Chargeoffs (1,746) (30) (2,016) (311)  
Recoveries 24 582 28 588  
Provision 1,078 615 2,471 1,235  
Ending Balance 5,395 4,807 5,395 4,807  
Individually Evaluated for Impairment 1,576   1,576   1,921
Collectively Evaluated for Impairment 3,819   3,819   2,991
Ending Balance 1,309,035   1,309,035   1,127,549
Individually Evaluated for Impairment 20,475   20,475   18,927
Collectively Evaluated for Impairment 1,288,560   1,288,560   1,108,622
Consumer Portfolio Segment [Member]
         
Allowance for loan losses:          
Begining Balance 224 285 199 531  
Chargeoffs (42) (79) (172) (707)  
Recoveries 6 1 10 7  
Provision 563 96 714 472  
Ending Balance 751 303 751 303  
Individually Evaluated for Impairment 592   592   0
Collectively Evaluated for Impairment 159   159   199
Ending Balance 43,390   43,390   46,282
Individually Evaluated for Impairment 608   608   135
Collectively Evaluated for Impairment 42,782   42,782   46,147
Unallocated Financing Receivables [Member]
         
Allowance for loan losses:          
Begining Balance 5,901 5,221 6,403 5,035  
Chargeoffs 0 0 0 0  
Recoveries 0 0 0 0  
Provision 347 944 (155) 1,130  
Ending Balance 6,248 6,165 6,248 6,165  
Individually Evaluated for Impairment 0   0   0
Collectively Evaluated for Impairment 6,248   6,248   6,403
Ending Balance 0   0   0
Individually Evaluated for Impairment 0   0   0
Collectively Evaluated for Impairment $ 0   $ 0   $ 0