Segment Information (Details) (USD $) In Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2011	Jun. 30, 2010	Jun. 30, 2011	Jun. 30, 2010
Reportable Segment Information, Reconciled to Consolidated [Line Items]
Net sales	$ 307.9	$ 281.8	$ 603.3	$ 556.5
Total operating profit	27.8	30.5	56.5	59.4
Interest expense	4.6	3.9	9.3	7.9
Interest income	(0.3)	(0.1)	(0.5)	(0.2)
Income before income taxes	23.5	26.7	47.7	51.7
Separation costs, former President and COO	2.1
Packaging Systems [Member]
Reportable Segment Information, Reconciled to Consolidated [Line Items]
Net sales	222.2	200.9	438.0	399.8
Total operating profit	38.1	37.6	80.1	77.4
Delivery Systems [Member]
Reportable Segment Information, Reconciled to Consolidated [Line Items]
Net sales	86.4	82.0	166.9	158.9
Total operating profit	2.4	3.6	4.2	4.8
Intersegment [Member]
Reportable Segment Information, Reconciled to Consolidated [Line Items]
Net sales	(0.7)	(1.1)	(1.6)	(2.2)
Corporate [Member]
Reportable Segment Information, Reconciled to Consolidated [Line Items]
Total operating profit	(10.0)	(10.3)	(23.2)	(21.8)
Other Unallocated Items [Member]
Reportable Segment Information, Reconciled to Consolidated [Line Items]
Total operating profit	$ (2.7)	$ (0.4)	$ (4.6)	$ (1.0)