Segment Information (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Reportable segments			2
Net sales	$ 368.9	$ 344.5	$ 715.7	$ 683.9
Operating profit	54.1	42.5	93.4	85.9
Loss on debt extinguishment	0	0	0	0.2
Interest expense	4.2	4.1	8.2	8.7
Interest income	0.5	0.4	0.9	1.0
Income before income taxes	50.4	38.8	86.1	78.0
Packaging Systems [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Net sales	268.0	251.5	520.9	503.0
Operating profit	62.9	56.8	114.3	115.5
Delivery Systems [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Net sales	101.1	93.3	195.1	181.5
Operating profit	3.7	2.3	3.5	3.5
Intersegment Sales [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Net sales	(0.2)	(0.3)	(0.3)	(0.6)
Corporate [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Operating profit	$ (12.5)	$ (16.6)	$ (24.4)	$ (33.1)