Segment Information (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Reportable segments	2
Net sales	$ 339.4	$ 316.3
Operating profit	43.3	41.7
Loss on debt extinguishment	0.2	0
Interest expense	4.6	4.3
Interest income	0.6	0.4
Income before income taxes	39.1	37.8
Packaging Systems [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Net sales	251.5	235.7
Operating profit	58.6	53.6
Delivery Systems [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Net sales	88.2	80.7
Operating profit	1.2	2.3
Intersegment Sales [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Net sales	(0.3)	(0.1)
Corporate [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Operating profit	(16.5)	(13.6)
Other Unallocated Items [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Operating profit	0	(0.6)
Convertible Debt Due 2047 [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Loss on debt extinguishment	$ 0.2