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Securities (Narrative Disclosures) (Details)
$ in Thousands
 3 Months Ended 9 Months Ended
Sep. 30, 2020
USD ($)
securities
Sep. 30, 2019
USD ($)
securities
Sep. 30, 2020
USD ($)
securities
Sep. 30, 2019
USD ($)
securities
Dec. 31, 2019
USD ($)
Investments, Debt and Equity Securities [Abstract]          
Number of available-for-sale securities sold 0 37,000 1 46  
Securities pledged to secure various obligations | $ $ 79,800   $ 79,800   $ 30,300
Pledged Financial Instruments Not Separately Reported, Securities Pledged, Fair Value | $ $ 129,300   $ 129,300   $ 0
Number of available-for-sales securities in an unrealized loss position 12   12    
Number of available-for-sale securities in an unrealized loss position, twelve months or greater 1   1    
Other than temporary impairment on available-for-sale securities recorded on the income statement | $ $ 0 $ 0 $ 0 $ 0  
Number of held-to-maturity securities in an unrealized loss position 2   2    
Number of held-to-maturity Securities in an unrealized loss position, twelve months or greater 1   1    
Other than temporary impairment on held-to-maturity securities recorded on the income statement | $ $ 0 $ 0 $ 0 $ 0