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Derivative Financial Instruments (Details) - USD ($)
$ in Thousands
9 Months Ended 12 Months Ended
Sep. 30, 2021
Dec. 31, 2020
Derivative [Line Items]    
Document Period End Date Sep. 30, 2021  
Short-term Debt [Member] | Cash Flow Hedges | Interest Rate Swap [Member]    
Derivative [Line Items]    
Derivative Liability, Notional Amount $ 80,000 $ 80,000
Cash Flow Hedge Derivative Instrument Assets at Fair Value 0 0
Cash Flow Hedge Derivative Instrument Liabilities at Fair Value 569 1,457
Gain (Loss) on Cash Flow Hedge Ineffectiveness, Net 0 0
Short-term Debt [Member] | Cash Flow Hedges | Interest Rate Cap [Member]    
Derivative [Line Items]    
Derivative Liability, Notional Amount 100,000 100,000
Cash Flow Hedge Derivative Instrument Assets at Fair Value 8,290 5,652
Cash Flow Hedge Derivative Instrument Liabilities at Fair Value 0 0
Gain (Loss) on Cash Flow Hedge Ineffectiveness, Net 0 0
Commercial Real Estate [Member] | Fair Value Hedges    
Derivative [Line Items]    
Derivative Asset, Notional Amount 21,300  
Commercial Real Estate [Member] | Fair Value Hedges | Interest Rate Swap [Member]    
Derivative [Line Items]    
Derivative Asset, Notional Amount 17,712 18,192
Derivative Fair Value, Asset 0 0
Derivative Fair Value, Liability 780 1,290
Net Ineffectiveness Hedge Gains/(Losses) 0 0
Indexed Interest Bearing Demand Deposit Accounts | Cash Flow Hedges | Interest Rate Cap [Member]    
Derivative [Line Items]    
Derivative Liability, Notional Amount 100,000 100,000
Cash Flow Hedge Derivative Instrument Assets at Fair Value 2,090 1,001
Cash Flow Hedge Derivative Instrument Liabilities at Fair Value 0 0
Gain (Loss) on Cash Flow Hedge Ineffectiveness, Net $ 0 $ 0