| **Condensed Financial Information (parent company only) (Tables)**               | 12 Months Ended                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        |
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| **Condensed Financial Information of Parent Company Only Disclosure [Abstract]** |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   |
| Schedule Of Parent Company Information Balance Sheet                             |  December 31, 2012 December 31, 2011Assets   Cash$35,160 $20,654Investment in Subsidiaries633,971 611,809Goodwill448 448Other Assets6,638 8,540Total Assets$676,217 $641,451Liabilities   Borrowings$111,702 $115,826Other Liabilities12,279 11,158Total Liabilities123,981 126,984Stockholders' Equity552,236 514,467Total Liabilities and Stockholders' Equity$676,217 $641,451                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            |
| Schedule Of Parent Company Information Income Statement                          | Condensed Statements of Income and Comprehensive IncomeDecember 31, 2012December 31, 2011December 31, 2010IncomeDividends from Subsidiaries$30,096$4,677$3,256Administrative Services Fees from Subsidiaries28,489Other Income85(11)190Total Income30,1814,66631,935ExpensesInterest Expense4,6557,6616,816Salaries and Employee Benefits3,1942,68825,884Net Occupancy and Equipment Expenses312316,213Telephone Expenses3021918Postage and Courier Expenses121,786Other Expenses1,5021,5015,382Total Expenses9,69411,90446,999Income (Loss) Before Income Tax Benefit and Equity in Undistributed Income of Subsidiaries20,487(7,238)(15,064)Income Tax Benefit3,3163,2565,970Income (Loss) Before Equity in Undistributed Income of Subsidiaries23,803(3,982)(9,094)Equity in Undistributed (Distributions in Excess of) Income of Subsidiaries21,31929,23416,003Net Income 45,12225,2526,909Gain on Exchange of Preferred Stock11,353Loss on CPP Unamortized Discount(1,401)(1,301)Loss on Extinguishment of Trust Preferred Securities(10,857)Preferred Stock Dividends and Discount Accretion(4,539)(3,981)(5,239)Net Income Available to Common Stockholders$40,583$9,013$11,722      Net Income$45,122$25,252$6,909Other Comprehensive Income(1,897)6,555(1,331)Comprehensive Income$43,225$31,807$5,578                                                                                                                                                                                                                                                                                                                           |
| Schedule Of Parent Company Information Cash Flow                                 | Condensed Statement of Cash Flows Year Ended December 31, 201220112010Operating Activities:   Net Income$45,122$25,252$6,909Adjustments to Reconcile Net Income to Net Cash   Provided by Operating Activities   Share-based Compensation6325241,750Tax Benefit from Share Based Compensation 50Distributions in Excess of (Equity in Undistributed) Income of Subsidiaries(21,319)(29,234)(16,003)Net Change in:   Other Assets1,9025,7473,309Other Liabilities1,1221,091(744)Investment in Subsidiaries - Operating Activities(1,755)(6,593)(20)Net Cash Provided (Used) by Operating Activities$25,704$(3,213)$(4,749)Investing Activities - Investment in Subsidiaries(126)704(12,500)Net Cash Provided (Used) in Investing Activities$(126)$704$(12,500)Financing Activities:   Cash Dividends$(7,442)$(4,729)$(5,920)Repayment of Borrowings(4,124)(46,400) Preferred stock redemption under Capital Purchase Program(69,600) Preferred stock issued under Small Business Lending Fund90,783 Repurchase of Common Stock Warrants under Capital Purchase Program(368) Common Stock Issued21,16524,150Stock Issued Under Employee Benefit Plans449669582Stock Issued Under Dividend Reinvestment and Stock Purchase Plan2028991Stock Options Exercised78  Tax Benefit from Share Based Compensation  (50)Stock Redeemed(235)(126)(76)Other298198Net Cash Provided (Used) by Financing Activities$(11,072)$(8,219)$18,975Net Change in Cash14,506(10,728)1,726Cash, Beginning of the Year20,65431,38229,656Cash, End of Year$35,160$20,654$31,382 |

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Tabular disclosure of a condensed cash flow statement. Disclosure may include, but is not limited to, cash flow statements of consolidated entities and consolidation eliminations.
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Tabular disclosure of a condensed income statement. Disclosure may include, but is not limited to, income statements of consolidated entities and consolidation eliminations.
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