|**Borrowings (Tables)**                       | 12 Months Ended                                                                                                                                                                                                                                                                                                                                                                                                          
|--------------------------------------------- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|
|**Debt Disclosure [Abstract]**                |                                                                                                                                                                                                                                                                                                                                                                                                                          
|Schedule of Debt                              | The following table summarizes the Corporation's borrowings as of December 31, 2015 and 2014:December 31, 2015December 31, 2014Federal funds purchased$49,721$15,381Securities sold under repurchase agreements155,325124,539Federal Home Loan Bank advances235,652145,264Subordinated debentures and term loans127,846126,810Total Borrowings$568,544$411,994                                                           
|                                             
|                                              |                                                                                                                                                                                                                                                                                                                                                                                                                          
|                                              | December 31, 2015                                                                                                                                                                                                                                                                                                                                                                                                        
|Federal funds purchased                       | $                                                                                                                                                                                                                                                                                                                                                                                                                        
|Securities sold under repurchase agreements   | 155,325                                                                                                                                                                                                                                                                                                                                                                                                                  
|Federal Home Loan Bank advances               | 235,652                                                                                                                                                                                                                                                                                                                                                                                                                  
|Subordinated debentures and term loans        | 127,846                                                                                                                                                                                                                                                                                                                                                                                                                  
|Total Borrowings                              | $                                                                                                                                                                                                                                                                                                                                                                                                                        
|Schedule of Maturities of Long-term Debt      | Maturities of borrowings as ofDecember 31, 2015, are as follows:Maturities in Years Ending December 31:Federal Funds PurchasedSecurities SoldUnder Repurchase AgreementsFederal HomeLoan BankAdvancesSubordinatedDebentures andTerm Loans2016$49,721$155,325$91,441$183201737,222201826,851201913,828202031,310After 202035,000132,012ASC 805 fair value adjustments at acquisition(4,349)$49,721$155,325$235,652$127,846
|                                             
|                                              |                                                                                                                                                                                                                                                                                                                                                                                                                          
|Maturities in Years Ending December 31:       | Federal Funds Purchased                                                                                                                                                                                                                                                                                                                                                                                                  
|2016                                          | $                                                                                                                                                                                                                                                                                                                                                                                                                        
|2017                                          |                                                                                                                                                                                                                                                                                                                                                                                                                          
|2018                                          |                                                                                                                                                                                                                                                                                                                                                                                                                          
|2019                                          |                                                                                                                                                                                                                                                                                                                                                                                                                          
|2020                                          |                                                                                                                                                                                                                                                                                                                                                                                                                          
|After 2020                                    |                                                                                                                                                                                                                                                                                                                                                                                                                          
|ASC 805 fair value adjustments at acquisition |                                                                                                                                                                                                                                                                                                                                                                                                                          
|                                              | $                                                                                                                                                                                                                                                                                                                                                                                                                        

X- ReferencesNo definition available.
+ Details**Name:**
us-gaap_DebtDisclosureAbstract**Namespace Prefix:**
us-gaap_**Data Type:**
xbrli:stringItemType**Balance Type:**
na**Period Type:**
duration X- DefinitionTabular disclosure of information pertaining to short-term and long-debt instruments or arrangements, including but not limited to identification of terms, features, collateral requirements and other information necessary to a fair presentation.
+ ReferencesNo definition available.
+ Details**Name:**
us-gaap_ScheduleOfDebtTableTextBlock**Namespace Prefix:**
us-gaap_**Data Type:**
nonnum:textBlockItemType**Balance Type:**
na**Period Type:**
duration X- DefinitionTabular disclosure of the combined aggregate amount of maturities and sinking fund requirements for all long-term borrowings for each of the five years following the date of the latest balance sheet date presented.
+ ReferencesReference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6802200&loc=d3e1835-112601
+ Details**Name:**
us-gaap_ScheduleOfMaturitiesOfLongTermDebtTableTextBlock**Namespace Prefix:**
us-gaap_**Data Type:**
nonnum:textBlockItemType**Balance Type:**
na**Period Type:**
duration