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Intangibles (Tables)
 6 Months Ended
Jun. 30, 2017
Goodwill and Intangible Assets Disclosure [Abstract]  
Summary of Core Deposit Intangible Assets
A summary of core deposit intangible assets as of June 30, 2017 and December 31, 2016 is as follows (in thousands):

 
 
June 30, 2017
 
December 31, 2016
Gross carrying amount
 
$
11,674

 
$
11,674

Less accumulated amortization
 
(7,606
)
 
(7,053
)
Net carrying amount
 
$
4,068

 
$
4,621