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Investment Securities (Details)
$ in Thousands
 6 Months Ended 12 Months Ended
Jun. 30, 2016
USD ($)
Integer
Dec. 31, 2015
USD ($)
Integer
Investments, Debt and Equity Securities [Abstract]    
Number of Investment Securities Sold | Integer 42 74
Available-for-sale Securities Pledged as Collateral | $ $ 165,600 $ 142,500
Description of Holding Securities there were no holdings of securities of any one issuer, other than the U.S. Government and its agencies, in an amount greater than 10% of stockholders’ equity.