Derivative Financial Instruments and Fair Value Measurements - Impact of Changes in Fair Values of Derivatives Designated as Cash Flow Hedges on Other Comprehensive Income AOCI and Earnings (Details) - Cross-currency swap - Cash flow hedge - Designated as hedging instrument - USD ($) $ in Millions	3 Months Ended	9 Months Ended
	Sep. 30, 2019	Sep. 30, 2019
Derivative [Line Items]
Gain Recognized in OCI	$ 4.2	$ 9.2
Interest and Other Expenses (Income), Net
Derivative [Line Items]
Gain (Loss) Reclassified from AOCI into Income	$ 4.6	$ 10.0