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Securities Sold Under Agreements to Repurchase (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Assets Sold under Agreements to Repurchase [Line Items]    
Securities sold under agreements to repurchase $ 6.2 $ 11.8
Minimum [Member]    
Assets Sold under Agreements to Repurchase [Line Items]    
Securities sold under agreement to repurchase, maturity of agreement 1 day  
Maximum [Member]    
Assets Sold under Agreements to Repurchase [Line Items]    
Securities sold under agreement to repurchase, maturity of agreement 4 days