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Loans Held for Investment (LHFI) and Allowance for Loan Losses, LHFI (6) (Details) (USD $) In Thousands, unless otherwise specified | Sep. 30, 2012 | Dec. 31, 2011
--- | --- | ---
Financing Receivable, Modifications [Line Items] |  |
Nonaccrual | $ 80,658 | $ 110,458
Troubled Debt Restructurings [Member] |  |
Financing Receivable, Modifications [Line Items] |  |
Accruing | 3,797 | 1,023
Nonaccrual | 22,552 | 33,164
Total Troubled Debt Restructurings by Type | 26,349 | 34,187
Troubled Debt Restructurings [Member] | Construction Land Development And Other Financing Receivable [Member] |  |
Financing Receivable, Modifications [Line Items] |  |
Accruing | 235 | 241
Nonaccrual | 12,493 | 14,041
Total Troubled Debt Restructurings by Type | 12,728 | 14,282
Troubled Debt Restructurings [Member] | Secured by 1-4 Family Residential Properties[Member] |  |
Financing Receivable, Modifications [Line Items] |  |
Accruing | 3,562 | 782
Nonaccrual | 5,198 | 3,485
Total Troubled Debt Restructurings by Type | 8,760 | 4,267
Troubled Debt Restructurings [Member] | Secured by NonFarm, Nonresidential Properties [Member] |  |
Financing Receivable, Modifications [Line Items] |  |
Accruing | 0 | 0
Nonaccrual | 4,662 | 4,135
Total Troubled Debt Restructurings by Type | 4,662 | 4,135
Troubled Debt Restructurings [Member] | Other Real Estate Secured Financing Receivable [Member] |  |
Financing Receivable, Modifications [Line Items] |  |
Accruing | 0 |
Nonaccrual | 199 |
Total Troubled Debt Restructurings by Type | 199 |
Troubled Debt Restructurings [Member] | Commercial And Industrial Loans [Member] |  |
Financing Receivable, Modifications [Line Items] |  |
Accruing |  | 0
Nonaccrual |  | 11,503
Total Troubled Debt Restructurings by Type |  | $ 11,503

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- Definition The total amount of troubled debt restructurings outstanding. + References No definition available. + Details
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- Definition Recorded investment in financing receivables that are on nonaccrual status as of the balance sheet date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=6965416&loc=d3e5111-111524 -Subparagraph (d) + Details
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