Income Taxes (Details)	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Income Tax Disclosure [Abstract]
Statutory tax rate	21.00%	21.00%	21.00%	21.00%
Increase (decrease) resulting from:
Tax exempt interest	(1.30%)	(2.60%)	(1.60%)	(3.60%)
Tax exempt income on bank owned life insurance	(1.10%)	(0.80%)	(0.80%)	(1.00%)
Effective Income Tax Rate Reconciliation, Captive Insurance Premium Income, Percent	(0.70%)	(0.80%)	(0.80%)	(0.90%)
Other, net	(1.00%)	0.00%	(0.80%)	0.30%
Effective tax rate	16.90%	16.80%	17.00%	15.80%