Segment Information (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Reportable segments			2
Net sales	$ 355.9	$ 341.8	$ 1,071.6	$ 1,025.7
Operating profit	44.0	39.7	137.4	125.5
Loss on debt extinguishment	0	0	0	0.2
Interest expense	4.5	4.4	12.7	13.1
Interest income	1.8	0.4	2.7	1.4
Income before income taxes	41.3	35.7	127.4	113.6
Packaging Systems [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Net sales	251.7	251.5	772.6	754.5
Operating profit	52.8	54.6	167.1	170.0
Delivery Systems [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Net sales	104.4	90.8	299.5	272.3
Operating profit	4.8	(0.1)	8.3	3.4
Intersegment Sales [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Net sales	(0.2)	(0.5)	(0.5)	(1.1)
Corporate [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Operating profit	(12.4)	(14.8)	(36.8)	(47.9)
Other Unallocated Item [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Operating profit	$ (1.2)	$ 0	$ (1.2)	$ 0