Accounts Receivable Sale Program (Narrative) (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Receivables [Abstract]
Maximum Limit Accounts Receivable Sale Program	$ 80.0
Trade Accounts Receivable Sold	52.9	$ 40.0
Amount Received From Trade Accounts Receivable Sold To Third Party	$ 52.7	$ 39.9