Income Taxes Income Taxes (Narrative) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Income Tax Disclosure [Abstract]
Income tax expense	$ 1,518	$ 1,880	$ 2,708	$ 3,481
Effective Income Tax Rate Reconciliation, Percent	17.90%	18.00%	19.00%	18.20%