Commitments, Contingencies and Concentrations of Credit Risk (Details) - Summary of Financial Instruments - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Supply Commitment [Line Items]
Off-balance sheet commitements	$ 948,799	$ 1,036,854
Commercial Portfolio Segment [Member] | Supply Commitment [Member]
Supply Commitment [Line Items]
Off-balance sheet commitements	525,606	564,444
Home Equity Line of Credit [Member]
Supply Commitment [Line Items]
Off-balance sheet commitements	65,690	47,278
Commercial Real Estate Portfolio Segment [Member] | Supply Commitment [Member]
Supply Commitment [Line Items]
Off-balance sheet commitements	327,745	392,225
Standby Letters of Credit [Member]
Supply Commitment [Line Items]
Off-balance sheet commitements	28,738	32,155
Overdraft Protection Lines [Member]
Supply Commitment [Line Items]
Off-balance sheet commitements	$ 1,020	$ 752