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Virginia Partners Transaction - Core Deposit Intangible (Details) - Virginia Partners Bank - USD ($)
$ in Millions
12 Months Ended
Nov. 15, 2019
Dec. 31, 2019
Fair value of the core deposit intangible    
Acquisition related costs   $ 1.9
Core deposit intangible    
Fair value of the core deposit intangible    
Core deposit intangible value $ 2.7  
Core deposit intangible (as a percent) 1.01%  
Core deposit intangible, amortization period 10 years