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Deposits - Additional Information (Details) - USD ($) $ in Millions | Dec. 31, 2016 | Dec. 31, 2015
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Banking and Thrift [Abstract] |  |
Aggregate value of certificate of deposit over $100,000 | $ 671.5 | $ 555.4

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- Definition Amount of time deposit liabilities, including certificates of deposit, in denominations of $100,000 or more. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Industry Guide -Number 3 -Section V -Paragraph D-E + Details
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