Revenue From Contracts With Customers (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Service charges on deposit accounts
Disaggregation of Revenue [Line Items]
Revenues from contract with customers	$ 3,558	$ 3,153
Service charges on deposit accounts | Over a period of time
Disaggregation of Revenue [Line Items]
Revenues from contract with customers	484	457
Service charges on deposit accounts | At a point in time
Disaggregation of Revenue [Line Items]
Revenues from contract with customers	3,074	2,696
Debit and credit card
Disaggregation of Revenue [Line Items]
Revenues from contract with customers	3,482	2,974
Debit and credit card | Over a period of time
Disaggregation of Revenue [Line Items]
Revenues from contract with customers	194	185
Debit and credit card | At a point in time
Disaggregation of Revenue [Line Items]
Revenues from contract with customers	3,287	2,789
Wealth management
Disaggregation of Revenue [Line Items]
Revenues from contract with customers	2,362	2,048
Wealth management | Over a period of time
Disaggregation of Revenue [Line Items]
Revenues from contract with customers	345	413
Wealth management | At a point in time
Disaggregation of Revenue [Line Items]
Revenues from contract with customers	2,018	1,635
Other fee revenue | At a point in time
Disaggregation of Revenue [Line Items]
Revenues from contract with customers	$ 919	$ 919