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Commitments and Contingencies - Derivatives Not Designated as Hedging Instruments, Interest Rate Swap Agreements (Details) - Not Designated as Hedging Instrument - Interest Rate Swap - USD ($)
Dec. 31, 2019
Dec. 31, 2018
Derivative [Line Items]    
Notional amount $ 44,531,000 $ 0
Other Assets    
Derivative [Line Items]    
Fair value adjustment included in other assets 69,000 0
Other Liabilities    
Derivative [Line Items]    
Fair value adjustment included in other liabilities $ 69,000 $ 0