CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE (LOSS) INCOME - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Statement of Comprehensive Income [Abstract]
Net income	$ 8.6	$ 23.9
Foreign currency translation:
Other comprehensive (loss) income before reclassifications	(23.6)	94.2
Reclassifications	0.0	479.8
Total foreign currency translation adjustments	(23.6)	574.0
Pension and post-retirement plans:
Other comprehensive (loss) income before reclassifications, net of tax expense (benefit) of $0.5 and $0.0 for the three months ended March 31, 2020 and 2019, respectively	0.5	0.0
Reclassifications, net of tax expense (benefit) of $0.0 for the three months ended March 31, 2020 and 2019, respectively	0.0	(2.1)
Total pension and post-retirement plans	(0.5)	(2.1)
Derivative financial instruments:
Other comprehensive (loss) income before reclassifications, net of tax expense (benefit) of $0.0 and $(2.4) for the three months ended March 31, 2020 and 2019, respectively	(32.0)	(9.2)
Reclassifications, net of tax expense (benefit) of $0.0 and $(1.4) for the three months ended March 31, 2020 and 2019, respectively	1.6	(5.7)
Total unrealized loss arising on qualified hedging derivatives	(30.4)	(14.9)
Other comprehensive (loss) income	(54.5)	557.0
Comprehensive (loss) income	(45.9)	580.9
Comprehensive income attributable to the non-controlling interests	0.0	(40.2)
Comprehensive (loss) income attributable to common stockholders	(45.9)	540.7
Tax expense	$ 0.5	$ 0.0