Segment Information - Reconciliation of Operating Profit (Losee) from Segments to Consolidated (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Segment income	$ 60.3	$ 77.5
Intangible amortization	(16.0)	(15.1)
Restructuring and other	(4.3)	(3.6)
Net interest expense	(9.9)	(10.5)
Other expense	(0.8)	(0.9)
Income before income taxes	49.6	66.1
Operating Segments
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Segment income	81.5	96.2
Segment Reconciling Items
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Intangible amortization	(16.0)	(15.1)
Restructuring and other	(4.3)	(3.6)
Acquisition transaction and integration costs	(0.9)	0.0
Net interest expense	(9.9)	(10.5)
Other expense	$ (0.8)	$ (0.9)