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 6 Months Ended
Jun. 30, 2013
Jun. 30, 2012
Jun. 30, 2013
Jun. 30, 2012
Dec. 31, 2012
Allowance for loan losses:          
Balance, beginning of year $ 27,679 $ 23,662 $ 26,258 $ 22,030  
Chargeoffs (2,388) (3,521) (5,266) (4,377)  
Recoveries 132 15 147 120  
Provision 3,334 3,083 7,618 5,466  
Balance, end of year 28,757 23,239 28,757 23,239  
Individually Evaluated for Impairment 6,037   6,037   3,511
Collectively Evaluated for Impairment 22,720   22,720   22,747
Ending Balance 2,590,192   2,590,192   2,363,182
Individually Evaluated for Impairment 46,286   46,286   37,394
Collectively Evaluated for Impairment 2,543,906   2,543,906   2,325,788
Commercial Financial and Agricultural Financing Receivable [Member]
         
Allowance for loan losses:          
Balance, beginning of year 8,951 6,625 8,233 6,627  
Chargeoffs (101) (261) (988) (548)  
Recoveries 31 0 37 100  
Provision 2,259 147 3,858 332  
Balance, end of year 11,140 6,511 11,140 6,511  
Individually Evaluated for Impairment 2,286   2,286   577
Collectively Evaluated for Impairment 8,854   8,854   7,656
Ending Balance 1,150,977   1,150,977   1,030,990
Individually Evaluated for Impairment 6,771   6,771   3,910
Collectively Evaluated for Impairment 1,144,206   1,144,206   1,027,080
Commercial Real Estate Construction Financing Receivable [Member]
         
Allowance for loan losses:          
Balance, beginning of year 6,642 7,607 6,511 6,542  
Chargeoffs (1,888) (2,502) (3,877) (2,919)  
Recoveries 95 8 102 8  
Provision 604 2,469 2,717 3,951  
Balance, end of year 5,453 7,582 5,453 7,582  
Individually Evaluated for Impairment 932   932   1,013
Collectively Evaluated for Impairment 4,521   4,521   5,498
Ending Balance 162,076   162,076   158,361
Individually Evaluated for Impairment 17,700   17,700   14,422
Collectively Evaluated for Impairment 144,376   144,376   143,939
Residential Real Estate Mortgage Loans [Member]
         
Allowance for loan losses:          
Balance, beginning of year 5,737 3,893 4,912 3,295  
Chargeoffs (270) (221) (270) (281)  
Recoveries 3 4 3 6  
Provision 569 (36) 1,394 620  
Balance, end of year 6,039 3,640 6,039 3,640  
Individually Evaluated for Impairment 2,744   2,744   1,921
Collectively Evaluated for Impairment 3,295   3,295   2,991
Ending Balance 1,235,426   1,235,426   1,127,549
Individually Evaluated for Impairment 21,256   21,256   18,927
Collectively Evaluated for Impairment 1,214,170   1,214,170   1,108,622
Consumer Portfolio Segment [Member]
         
Allowance for loan losses:          
Balance, beginning of year 164 510 199 531  
Chargeoffs (129) (537) (131) (629)  
Recoveries 3 3 5 6  
Provision 186 309 151 377  
Balance, end of year 224 285 224 285  
Individually Evaluated for Impairment 75   75   0
Collectively Evaluated for Impairment 149   149   199
Ending Balance 41,713   41,713   46,282
Individually Evaluated for Impairment 559   559   135
Collectively Evaluated for Impairment 41,154   41,154   46,147
Unallocated Financing Receivables [Member]
         
Allowance for loan losses:          
Balance, beginning of year 6,185 5,027 6,403 5,035  
Chargeoffs 0 0 0 0  
Recoveries 0 0 0 0  
Provision (284) 194 (502) 186  
Balance, end of year 5,901 5,221 5,901 5,221  
Individually Evaluated for Impairment 0   0   0
Collectively Evaluated for Impairment 5,901   5,901   6,403
Ending Balance 0   0   0
Individually Evaluated for Impairment 0   0   0
Collectively Evaluated for Impairment $ 0   $ 0   $ 0