Income Taxes Income Taxes (Narrative) (Details)	3 Months Ended	9 Months Ended
	Sep. 30, 2020	Sep. 30, 2020	Sep. 30, 2019
Income Taxes [Abstract]
Effective Income Tax Rate Reconciliation, Percent		27.60%	41.40%
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent	21.00%		21.00%