Segment Information (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended		3 Months Ended		9 Months Ended		3 Months Ended		9 Months Ended		3 Months Ended		9 Months Ended		3 Months Ended		9 Months Ended		3 Months Ended		9 Months Ended		3 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012 Packaging Systems [Member]	Sep. 30, 2011 Packaging Systems [Member]	Sep. 30, 2012 Packaging Systems [Member]	Sep. 30, 2011 Packaging Systems [Member]	Sep. 30, 2012 Delivery Systems [Member]	Sep. 30, 2011 Delivery Systems [Member]	Sep. 30, 2012 Delivery Systems [Member]	Sep. 30, 2011 Delivery Systems [Member]	Sep. 30, 2012 Intersegment Sales [Member]	Sep. 30, 2011 Intersegment Sales [Member]	Sep. 30, 2012 Intersegment Sales [Member]	Sep. 30, 2011 Intersegment Sales [Member]	Sep. 30, 2012 Corporate [Member]	Sep. 30, 2011 Corporate [Member]	Sep. 30, 2012 Corporate [Member]	Sep. 30, 2011 Corporate [Member]	Sep. 30, 2012 Other Unallocated Items [Member]	Sep. 30, 2011 Other Unallocated Items [Member]	Sep. 30, 2012 Other Unallocated Items [Member]	Sep. 30, 2011 Other Unallocated Items [Member]	Jun. 30, 2012 Convertible Debt Due 2047 [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Reportable segments			2
Net sales	$ 303.8	$ 293.6	$ 944.9	$ 896.9	$ 215.9	$ 209.1	$ 687.4	$ 647.1	$ 88.2	$ 84.5	$ 258.1	$ 251.4	$ (0.3)	$ 0	$ (0.6)	$ (1.6)
Total operating profit	26.3	26.1	103.6	82.6	39.2	34.8	143.4	114.9	4.7	1.7	12.5	5.9					(16.0)	(9.1)	(46.2)	(32.2)	(1.6)	(1.3)	(6.1)	(6.0)
Loss on debt extinguishment	0	0	(11.6)	0																					(11.6)
Interest expense	4.4	4.5	13.2	13.8
Interest income	0.5	0.4	1.5	0.9
Income before income taxes	22.4	22.0	80.3	69.7
Purchase of convertible debentures (in hundredths)																									98.06%
Purchase Premium Paid Convertible Debt																									6.2
Write off of unamortized debt issuance costs																									4.4
Debt transaction costs																									$ 1.0