Financing Arrangements - Short Term Debt (Details) - USD ($) $ in Millions	Dec. 31, 2020	Dec. 31, 2019
Short-term Debt [Line Items]
Line of credit facility, interest rate at period end		2.77%
Short-term debt	$ 119.8	$ 17.3
Line of Credit Accounts Receivable Securitization
Short-term Debt [Line Items]
Line of credit facility, interest rate at period end	0.96%	2.77%
Short-term debt	$ 58.0	$ 1.8
Foreign Subsidiary
Short-term Debt [Line Items]
Short-term debt	$ 61.8	$ 15.5
Foreign Subsidiary | Fixed Rate Lines of Credit
Short-term Debt [Line Items]
Line of credit stated variable interest rate low range	0.24%	0.27%
Line of credit stated variable interest rate, high range	1.75%	1.75%