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Other Real Estate Owned - Additional Information (Details) - USD ($)
 12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Real Estate [Line Items]        
Foreclosed real estate properties recorded as result of obtaining physical possession of property $ 9,896,000 $ 5,041,000 $ 10,626,000 $ 16,570,000
Residential consumer mortgage loans in process of foreclosure 2,100,000 2,300,000    
Proceeds from sale of internally financed sales of OREO 183,000 444,000 $ 0  
Residential Real Estate        
Real Estate [Line Items]        
Foreclosed real estate properties recorded as result of obtaining physical possession of property $ 1,500,000 $ 838,000