| **Condensed Financial Information (parent company only) (Tables)**               | 12 Months Ended                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       |
|----------------------------------------------------------------------------------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
||
| **Condensed Financial Information of Parent Company Only Disclosure [Abstract]** |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  |
| Schedule Of Parent Company Information Balance Sheet                             | Condensed Balance Sheets December 31, 2013 December 31, 2012Assets   Cash$13,228 $35,160Investment in Subsidiaries745,818 633,971Goodwill448 448Other Assets8,695 6,638Total Assets$768,189 $676,217Liabilities   Borrowings$126,702 $111,702Other Liabilities6,564 12,279Total Liabilities133,266 123,981Stockholders' Equity634,923 552,236Total Liabilities and Stockholders' Equity$768,189 $676,217                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    |
| Schedule Of Parent Company Information Income Statement                          | Condensed Statements of Income and Comprehensive IncomeDecember 31, 2013December 31, 2012December 31, 2011IncomeDividends from Subsidiaries$63,732$30,096$4,677Other Income4585(11)Total Income63,77730,1814,666ExpensesInterest Expense3,5314,6557,661Salaries and Employee Benefits3,2843,1942,688Net Occupancy and Equipment Expenses25831231Telephone Expenses423021Postage and Courier Expenses12Other Expenses2,6171,5021,501Total Expenses9,7329,69411,904Income (Loss) Before Income Tax Benefit and Equity in Undistributed Income of Subsidiaries54,04520,487(7,238)Income Tax Benefit3,1533,3163,256Income (Loss) Before Equity in Undistributed Income of Subsidiaries57,19823,803(3,982)Equity in Undistributed (Distributions in Excess of) Income of Subsidiaries(12,668)21,31929,234Net Income 44,53045,12225,252Loss on CPP Unamortized Discount(1,401)Loss on Extinguishment of Trust Preferred Securities(10,857)Preferred Stock Dividends and Discount Accretion(2,380)(4,539)(3,981)Net Income Available to Common Stockholders$42,150$40,583$9,013      Net Income$44,530$45,122$25,252Other Comprehensive Income (Loss)(911)(1,897)6,555Comprehensive Income$43,619$43,225$31,807                                                                                                                                                                                                                                                                                                                                                                                                                                                 |
| Schedule Of Parent Company Information Cash Flow                                 | Condensed Statement of Cash Flows Year Ended December 31, 201320122011Operating Activities:   Net Income$44,530$45,122$25,252Adjustments to Reconcile Net Income to Net Cash:   Share-based Compensation778632524Distributions in Excess of (Equity in Undistributed) Income of Subsidiaries12,668(21,319)(29,234)Net Change in:   Other Assets(1,354)1,9025,747Other Liabilities(8,438)1,1221,091Investment in Subsidiaries - Operating Activities12,991(1,755)(6,593)Net Cash Provided (Used) by Operating Activities$61,175$25,704$(3,213)Investing Activities:Investment in Subsidiaries  $(126) $704Other$240    Net Cash Provided (Used) in Investing Activities$240$(126)$704Financing Activities:   Cash Dividends$(7,992)$(7,442)$(4,729)Repayment of Borrowings(55,000)(4,124)(46,400)Proceeds from issuance of long-term debt70,000    Preferred stock redemption under Capital Purchase Program(69,600)Preferred stock issued under Small Business Lending Fund90,783Preferred stock redemption under Small Business Lending Fund(90,783)    Repurchase of Common Stock Warrants under Capital Purchase Program(368)Common Stock Issued21,165Stock Issued Under Employee Benefit Plans479449669Stock Issued Under Dividend Reinvestment and Stock Purchase Plan32520289Stock Options Exercised11578 Stock Redeemed(491)(235)(126)Other298Net Cash Used by Financing Activities$(83,347)$(11,072)$(8,219)Net Change in Cash(21,932)14,506(10,728)Cash, Beginning of the Year35,16020,65431,382Cash, End of Year$13,228$35,160$20,654 |

| X                                                                                                                                                                                                      |
|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Details**Name:**us-gaap_CondensedFinancialInformationOfParentCompanyOnlyDisclosureAbstract**Namespace Prefix:**us-gaap_**Data Type:**xbrli:stringItemType**Balance Type:**na**Period Type:**duration |
| X                                                                                                                                                                                                                                                                                                                                                                                              |
|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Tabular disclosure of condensed balance sheet, including, but not limited to, balance sheets of consolidated entities and consolidation eliminations.
+ References
No definition available.
+ Details**Name:**us-gaap_ScheduleOfCondensedBalanceSheetTableTextBlock**Namespace Prefix:**us-gaap_**Data Type:**nonnum:textBlockItemType**Balance Type:**na**Period Type:**duration |
| X                                                                                                                                                                                                                                                                                                                                                                                                               |
|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Tabular disclosure of condensed cash flow statement, including, but not limited to, cash flow statements of consolidated entities and consolidation eliminations.
+ References
No definition available.
+ Details**Name:**us-gaap_ScheduleOfCondensedCashFlowStatementTableTextBlock**Namespace Prefix:**us-gaap_**Data Type:**nonnum:textBlockItemType**Balance Type:**na**Period Type:**duration |
| X                                                                                                                                                                                                                                                                                                                                                                                                       |
|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Tabular disclosure of condensed income statement, including, but not limited to, income statements of consolidated entities and consolidation eliminations.
+ References
No definition available.
+ Details**Name:**us-gaap_ScheduleOfCondensedIncomeStatementTableTextBlock**Namespace Prefix:**us-gaap_**Data Type:**nonnum:textBlockItemType**Balance Type:**na**Period Type:**duration |