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Commitments and Contingencies (Tables)
9 Months Ended
Sep. 30, 2018
Commitments And Contingencies Disclosure [Abstract]  
Off-Balance Sheet Commitments

 

 

 

September 30,

2018

 

 

December 31,

2017

 

Commitments to extend credit

 

$

664,138

 

 

$

661,021

 

Standby letters of credit

 

 

12,707

 

 

 

12,181