Income Taxes Income Taxes (Narrative) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Income Tax Disclosure [Abstract]
Income tax expense	$ 1,812	$ 1,667	$ 5,293	$ 5,201
Effective Income Tax Rate Reconciliation, Percent	18.50%	19.50%	18.20%	20.10%