Derivative Financial Instruments and Hedging Activities - Narrative (Details) $ in Millions	3 Months Ended		12 Months Ended
	Mar. 31, 2020 USD ($) derivative_instrument	Mar. 31, 2019 USD ($)	Dec. 31, 2019 USD ($) derivative_instrument
Derivative [Line Items]
Interest expense, net of interest income	$ 36.5	$ 37.2
Designated
Derivative [Line Items]
Pre-tax gain (loss) included in accumulated other comprehensive loss for interest rate derivatives	164.5		$ 74.5
Pre-tax losses reclassified during the next twelve months	$ 33.0
Designated | Interest rate hedge
Derivative [Line Items]
Number of derivative instruments held | derivative_instrument	5
Non-Designated | Foreign currency forward contracts
Derivative [Line Items]
Number of derivative instruments held | derivative_instrument	26		23
Gain (loss) on derivative instruments	$ 0.4	(0.6)
Notional amount	497.6		$ 498.2
Reclassification out of Accumulated Other Comprehensive Income | Unrealized Hedging (Losses) Gains | Interest rate hedge
Derivative [Line Items]
Interest expense, net of interest income	$ 4.7	$ 2.6