Commitments And Contingencies (Details) $ in Thousands	Sep. 30, 2018 USD ($)
Loss Contingencies [Line Items]
Total unfunded commitments	$ 344,714
Revolving Home Equity And Credit Card Lines [Member]
Loss Contingencies [Line Items]
Total unfunded commitments	69,263
Construction [Member]
Loss Contingencies [Line Items]
Total unfunded commitments	92,280
Other Loans [Member]
Loss Contingencies [Line Items]
Total unfunded commitments	177,079
Standby Letters Of Credit [Member]
Loss Contingencies [Line Items]
Total unfunded commitments	$ 6,092