Segment Information (Details) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2015 USD ($)	Jun. 30, 2014 USD ($)	Jun. 30, 2015 USD ($)	Jun. 30, 2014 USD ($)
Segment Reporting [Abstract]
Number of reportable segments			2
Executive retirement and related costs	$ 10.9		$ 10.9
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Net sales	359.7	$ 368.9	695.6	$ 715.7
Operating profit (loss)	39.1	54.1	86.9	93.4
Interest expense	3.4	4.2	7.5	8.2
Interest income	0.4	0.5	0.8	0.9
Income before income taxes	36.1	50.4	80.2	86.1
Packaging Systems [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Net sales	259.6	268.0	502.1	520.9
Operating profit (loss)	61.8	62.9	122.7	114.3
Delivery Systems [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Net sales	100.6	101.1	194.1	195.1
Operating profit (loss)	4.0	3.7	3.5	3.5
Intersegment sales elimination [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Net sales	(0.5)	(0.2)	(0.6)	(0.3)
Corporate [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Operating profit (loss)	(15.8)	(12.5)	(28.4)	(24.4)
Other unallocated items [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Operating profit (loss)	$ (10.9)	$ 0.0	$ (10.9)	$ 0.0