Restructuring Charges - Reconciliation of Total Amounts Expected to be Incurred from Open Restructuring Plans Anticipated to be Realized (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended	6 Months Ended		12 Months Ended
	Apr. 30, 2014	Apr. 30, 2014	Apr. 30, 2013	Oct. 31, 2013
Restructuring and Related Cost [Abstract]
Amounts expected to be incurred		$ 13.4
Restructuring charges	3.9	6.5	1.2
Amounts remaining to be incurred		6.9		6.6
Employee Separation Costs [Member]
Restructuring and Related Cost [Abstract]
Restructuring charges	2.7	5.1
Asset Impairments [Member]
Restructuring and Related Cost [Abstract]
Restructuring charges		0.2
Other Restructuring Costs [Member]
Restructuring and Related Cost [Abstract]
Restructuring charges		1.2
Rigid Industrial Packaging & Services [Member]
Restructuring and Related Cost [Abstract]
Amounts expected to be incurred		8.4
Restructuring charges		3.3
Amounts remaining to be incurred		5.1
Rigid Industrial Packaging & Services [Member] | Employee Separation Costs [Member]
Restructuring and Related Cost [Abstract]
Amounts expected to be incurred		6.8
Restructuring charges		3.0
Amounts remaining to be incurred		3.8
Rigid Industrial Packaging & Services [Member] | Asset Impairments [Member]
Restructuring and Related Cost [Abstract]
Amounts expected to be incurred		0.2
Restructuring charges		0.2
Amounts remaining to be incurred
Rigid Industrial Packaging & Services [Member] | Other Restructuring Costs [Member]
Restructuring and Related Cost [Abstract]
Amounts expected to be incurred		1.4
Restructuring charges		0.1
Amounts remaining to be incurred		1.3
Flexible Products & Services [Member]
Restructuring and Related Cost [Abstract]
Amounts expected to be incurred		5.0
Restructuring charges		3.2
Amounts remaining to be incurred		1.8
Flexible Products & Services [Member] | Employee Separation Costs [Member]
Restructuring and Related Cost [Abstract]
Amounts expected to be incurred		2.5
Restructuring charges		2.1
Amounts remaining to be incurred		0.4
Flexible Products & Services [Member] | Asset Impairments [Member]
Restructuring and Related Cost [Abstract]
Amounts expected to be incurred
Restructuring charges
Amounts remaining to be incurred
Flexible Products & Services [Member] | Other Restructuring Costs [Member]
Restructuring and Related Cost [Abstract]
Amounts expected to be incurred		2.5
Restructuring charges		1.1
Amounts remaining to be incurred		$ 1.4