Debt Line of Credit (Details) - 2018 Credit Agreement [Member] - USD ($) $ in Millions	1 Months Ended
	Aug. 31, 2018	Aug. 01, 2020
Line of Credit Facility [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity	$ 700.0
Debt Instrument, Term	5 years
Deferred Finance Costs, Gross	$ 1.5
Line of Credit Facility, Swing Loan Sublimit	30.0
Line of Credit Facility, Letter of Credit Sublimit	75.0
Line of Credit Facility, Foreign Borrower Sublimit	75.0
Line of Credit Facility, Optional Currency Sublimit	$ 200.0
Line of Credit Facility, Amount Outstanding		$ 0.0
Line of Credit Facility, Letters of Credit Outstanding		11.4
Line of Credit Facility, Remaining Borrowing Capacity		$ 688.6