|
Loans By Performance Status (Detail) (USD $)
In Thousands, unless otherwise specified |
Dec. 31, 2012
|
Dec. 31, 2011
|
|---|---|---|
| Statement [Line Items] | ||
| Loans | $ 2,363,182 | $ 1,830,742 |
|
Commercial Financial and Agricultural Financing Receivable [Member]
|
||
| Statement [Line Items] | ||
| Loans | 1,030,990 | 799,464 |
|
Commercial Real Estate Construction Financing Receivable [Member]
|
||
| Statement [Line Items] | ||
| Loans | 158,361 | 151,218 |
|
Commercial Mortgage Loans Owner Occupied [Member]
|
||
| Statement [Line Items] | ||
| Loans | 568,041 | 398,601 |
|
One To Four Family Mortgage Loans [Member]
|
||
| Statement [Line Items] | ||
| Loans | 235,909 | 205,182 |
|
Other Real Estate Mortgage Loans [Member]
|
||
| Statement [Line Items] | ||
| Loans | 323,599 | 235,251 |
|
Residential Real Estate Mortgage Loans [Member]
|
||
| Statement [Line Items] | ||
| Loans | 1,127,549 | 839,034 |
|
Consumer Portfolio Segment [Member]
|
||
| Statement [Line Items] | ||
| Loans | 46,282 | 41,026 |
|
Performing Financing Receivable [Member]
|
||
| Statement [Line Items] | ||
| Loans | 2,352,824 | 1,816,970 |
|
Performing Financing Receivable [Member] | Commercial Financial and Agricultural Financing Receivable [Member]
|
||
| Statement [Line Items] | ||
| Loans | 1,030,714 | 798,285 |
|
Performing Financing Receivable [Member] | Commercial Real Estate Construction Financing Receivable [Member]
|
||
| Statement [Line Items] | ||
| Loans | 151,901 | 141,155 |
|
Performing Financing Receivable [Member] | Commercial Mortgage Loans Owner Occupied [Member]
|
||
| Statement [Line Items] | ||
| Loans | 565,255 | 397,809 |
|
Performing Financing Receivable [Member] | One To Four Family Mortgage Loans [Member]
|
||
| Statement [Line Items] | ||
| Loans | 235,456 | 204,512 |
|
Performing Financing Receivable [Member] | Other Real Estate Mortgage Loans [Member]
|
||
| Statement [Line Items] | ||
| Loans | 323,359 | 234,558 |
|
Performing Financing Receivable [Member] | Residential Real Estate Mortgage Loans [Member]
|
||
| Statement [Line Items] | ||
| Loans | 1,124,070 | 836,879 |
|
Performing Financing Receivable [Member] | Consumer Portfolio Segment [Member]
|
||
| Statement [Line Items] | ||
| Loans | 46,139 | 40,651 |
|
Nonperforming Financing Receivable [Member]
|
||
| Statement [Line Items] | ||
| Loans | 10,358 | 13,772 |
|
Nonperforming Financing Receivable [Member] | Commercial Financial and Agricultural Financing Receivable [Member]
|
||
| Statement [Line Items] | ||
| Loans | 276 | 1,179 |
|
Nonperforming Financing Receivable [Member] | Commercial Real Estate Construction Financing Receivable [Member]
|
||
| Statement [Line Items] | ||
| Loans | 6,460 | 10,063 |
|
Nonperforming Financing Receivable [Member] | Commercial Mortgage Loans Owner Occupied [Member]
|
||
| Statement [Line Items] | ||
| Loans | 2,786 | 792 |
|
Nonperforming Financing Receivable [Member] | One To Four Family Mortgage Loans [Member]
|
||
| Statement [Line Items] | ||
| Loans | 453 | 670 |
|
Nonperforming Financing Receivable [Member] | Other Real Estate Mortgage Loans [Member]
|
||
| Statement [Line Items] | ||
| Loans | 240 | 693 |
|
Nonperforming Financing Receivable [Member] | Residential Real Estate Mortgage Loans [Member]
|
||
| Statement [Line Items] | ||
| Loans | 3,479 | 2,155 |
|
Nonperforming Financing Receivable [Member] | Consumer Portfolio Segment [Member]
|
||
| Statement [Line Items] | ||
| Loans | $ 143 | $ 375 |