Equity - Schedule of Accumulated Other Comprehensive Loss) (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	$ 544.0	$ 489.6
Other comprehensive loss before reclassifications	(1.8)	1.3
Amounts reclassified from accumulated other comprehensive loss		(0.4)
Ending balance	540.8	508.6
Foreign currency adjustments
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	(48.3)	(48.0)
Other comprehensive loss before reclassifications	(1.8)	1.0
Amounts reclassified from accumulated other comprehensive loss		0.0
Ending balance	(50.1)	(47.0)
Derivative instruments
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance		(1.2)
Other comprehensive loss before reclassifications		0.3
Amounts reclassified from accumulated other comprehensive loss		(0.4)
Ending balance		(1.3)
Accumulated Other Comprehensive Loss
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	(48.3)	(49.2)
Ending balance	$ (50.1)	$ (48.3)