Derivative Financial Instruments - Narrative (Details) $ in Millions	Dec. 31, 2019 USD ($)	Jan. 22, 2019 USD ($) derivative	Dec. 31, 2018 USD ($)
Derivative [Line Items]
Derivative assets	$ 72.1		$ 68.8
Derivative liabilities	60.9		72.1
Number of cash flows entered into | derivative		3
Gain (loss) to be reclassified during the next 12 months	$ 19.5
Variable Rate Debt
Derivative [Line Items]
Long-term debt		$ 2,000.0
Other Current Assets
Derivative [Line Items]
Derivative assets			39.0
Other Current Liabilities
Derivative [Line Items]
Derivative liabilities			$ 26.9