Factoring of Accounts Receivable Factoring of Accounts Receivable (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Total Factored
Factoring of Accounts Receivable [Line Items]
Accounts Receivable Sold without Recourse	$ 680.4	$ 873.9
Factoring Fees
Factoring of Accounts Receivable [Line Items]
Accounts Receivable Sold without Recourse	$ 4.4	$ 7.0