Quarterly report pursuant to Section 13 or 15(d)

LOANS (Loans By Credit Quality Indicator) (Detail)

v2.4.0.8
LOANS (Loans By Credit Quality Indicator) (Detail) (USD $)
In Thousands, unless otherwise specified
Jun. 30, 2013
Dec. 31, 2012
Financing Receivable Recorded Investment [Line Items]    
Loans $ 2,590,192 $ 2,363,182
Commercial Financial and Agricultural Financing Receivable [Member]
   
Financing Receivable Recorded Investment [Line Items]    
Loans 1,150,977 1,030,990
Commercial Real Estate Construction Financing Receivable [Member]
   
Financing Receivable Recorded Investment [Line Items]    
Loans 162,076 158,361
Commercial Mortgage Loans Owner Occupied [Member]
   
Financing Receivable Recorded Investment [Line Items]    
Loans 623,146 568,041
One To Four Family Mortgage Loans [Member]
   
Financing Receivable Recorded Investment [Line Items]    
Loans 252,357 235,909
Other Real Estate Mortgage Loans [Member]
   
Financing Receivable Recorded Investment [Line Items]    
Loans 359,923 323,599
Residential Real Estate Mortgage Loans [Member]
   
Financing Receivable Recorded Investment [Line Items]    
Loans 1,235,426 1,127,549
Consumer Portfolio Segment [Member]
   
Financing Receivable Recorded Investment [Line Items]    
Loans 41,713 46,282
Pass [Member]
   
Financing Receivable Recorded Investment [Line Items]    
Loans 2,475,710 2,262,448
Pass [Member] | Commercial Financial and Agricultural Financing Receivable [Member]
   
Financing Receivable Recorded Investment [Line Items]    
Loans 1,107,307 1,004,043
Pass [Member] | Commercial Real Estate Construction Financing Receivable [Member]
   
Financing Receivable Recorded Investment [Line Items]    
Loans 137,731 121,168
Pass [Member] | Commercial Mortgage Loans Owner Occupied [Member]
   
Financing Receivable Recorded Investment [Line Items]    
Loans 605,157 555,536
Pass [Member] | One To Four Family Mortgage Loans [Member]
   
Financing Receivable Recorded Investment [Line Items]    
Loans 237,094 223,152
Pass [Member] | Other Real Estate Mortgage Loans [Member]
   
Financing Receivable Recorded Investment [Line Items]    
Loans 347,364 312,473
Pass [Member] | Residential Real Estate Mortgage Loans [Member]
   
Financing Receivable Recorded Investment [Line Items]    
Loans 1,189,615 1,091,161
Pass [Member] | Consumer Portfolio Segment [Member]
   
Financing Receivable Recorded Investment [Line Items]    
Loans 41,057 46,076
Special Mention [Member]
   
Financing Receivable Recorded Investment [Line Items]    
Loans 66,314 59,209
Special Mention [Member] | Commercial Financial and Agricultural Financing Receivable [Member]
   
Financing Receivable Recorded Investment [Line Items]    
Loans 35,092 19,172
Special Mention [Member] | Commercial Real Estate Construction Financing Receivable [Member]
   
Financing Receivable Recorded Investment [Line Items]    
Loans 6,645 22,771
Special Mention [Member] | Commercial Mortgage Loans Owner Occupied [Member]
   
Financing Receivable Recorded Investment [Line Items]    
Loans 10,581 4,142
Special Mention [Member] | One To Four Family Mortgage Loans [Member]
   
Financing Receivable Recorded Investment [Line Items]    
Loans 6,248 6,379
Special Mention [Member] | Other Real Estate Mortgage Loans [Member]
   
Financing Receivable Recorded Investment [Line Items]    
Loans 7,670 6,674
Special Mention [Member] | Residential Real Estate Mortgage Loans [Member]
   
Financing Receivable Recorded Investment [Line Items]    
Loans 24,499 17,195
Special Mention [Member] | Consumer Portfolio Segment [Member]
   
Financing Receivable Recorded Investment [Line Items]    
Loans 78 71
Substandard [Member]
   
Financing Receivable Recorded Investment [Line Items]    
Loans 48,054 41,525
Substandard [Member] | Commercial Financial and Agricultural Financing Receivable [Member]
   
Financing Receivable Recorded Investment [Line Items]    
Loans 8,464 7,775
Substandard [Member] | Commercial Real Estate Construction Financing Receivable [Member]
   
Financing Receivable Recorded Investment [Line Items]    
Loans 17,700 14,422
Substandard [Member] | Commercial Mortgage Loans Owner Occupied [Member]
   
Financing Receivable Recorded Investment [Line Items]    
Loans 7,408 8,363
Substandard [Member] | One To Four Family Mortgage Loans [Member]
   
Financing Receivable Recorded Investment [Line Items]    
Loans 9,015 6,378
Substandard [Member] | Other Real Estate Mortgage Loans [Member]
   
Financing Receivable Recorded Investment [Line Items]    
Loans 4,889 4,452
Substandard [Member] | Residential Real Estate Mortgage Loans [Member]
   
Financing Receivable Recorded Investment [Line Items]    
Loans 21,312 19,193
Substandard [Member] | Consumer Portfolio Segment [Member]
   
Financing Receivable Recorded Investment [Line Items]    
Loans 578 135
Doubtful [Member]
   
Financing Receivable Recorded Investment [Line Items]    
Loans 114 0
Doubtful [Member] | Commercial Financial and Agricultural Financing Receivable [Member]
   
Financing Receivable Recorded Investment [Line Items]    
Loans 114 0
Doubtful [Member] | Commercial Real Estate Construction Financing Receivable [Member]
   
Financing Receivable Recorded Investment [Line Items]    
Loans 0 0
Doubtful [Member] | Commercial Mortgage Loans Owner Occupied [Member]
   
Financing Receivable Recorded Investment [Line Items]    
Loans 0 0
Doubtful [Member] | One To Four Family Mortgage Loans [Member]
   
Financing Receivable Recorded Investment [Line Items]    
Loans 0 0
Doubtful [Member] | Other Real Estate Mortgage Loans [Member]
   
Financing Receivable Recorded Investment [Line Items]    
Loans 0 0
Doubtful [Member] | Residential Real Estate Mortgage Loans [Member]
   
Financing Receivable Recorded Investment [Line Items]    
Loans 0 0
Doubtful [Member] | Consumer Portfolio Segment [Member]
   
Financing Receivable Recorded Investment [Line Items]    
Loans $ 0 $ 0