Segment Information (Details) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2018 USD ($)	Sep. 30, 2017 USD ($)	Sep. 30, 2018 USD ($) segment	Sep. 30, 2017 USD ($)
Segment Reporting [Abstract]
Number of reportable segments | segment			2
Restructuring and related charges	$ 1.2		$ 6.7
Argentina currency devaluation	1.1		1.1
Venezuela deconsolidation	0.0	$ 0.0	0.0	$ (11.1)
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Net Sales	431.7	398.2	1,294.9	1,183.5
Total operating (loss) profit	60.8	62.9	174.5	165.4
Interest expense	2.0	1.4	6.1	5.7
Interest income	(0.5)	(0.3)	(1.4)	(0.9)
Other nonoperating income	(1.8)	(1.1)	(5.1)	(2.5)
Income before income taxes	61.1	62.9	174.9	163.1
Net periodic benefit cost	0.8	1.4	3.0	5.3
Service cost	2.6	2.5	8.1	7.8
Proprietary Products [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Net Sales	325.2	308.9	997.4	930.5
Total operating (loss) profit	68.2	67.5	202.7	189.3
Contract-Manufactured Products [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Net Sales	106.7	89.3	297.7	253.3
Total operating (loss) profit	11.2	10.8	29.7	30.1
Intersegment sales elimination [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Net Sales	(0.2)	0.0	(0.2)	(0.3)
Corporate [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Total operating (loss) profit	(16.3)	(15.4)	(50.1)	(42.9)
Other unallocated items [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Total operating (loss) profit	(2.3)	0.0	(7.8)	(11.1)
Accounting Standards Update 2017-07 [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Net benefit cost components other than service cost	$ 1.8	$ 1.1	$ 5.1	$ 2.5