Restructuring Charges - Reconciliation of Total Amounts Expected to be Incurred from Open Restructuring Plans Anticipated to be Realized (Detail) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Apr. 30, 2018	Apr. 30, 2017	Apr. 30, 2018	Apr. 30, 2017	Oct. 31, 2017
Restructuring and Related Costs [Line Items]
Total Amounts Expected to be Incurred	$ 25.5		$ 25.5
Restructuring charges	6.0	$ 5.1	10.1	$ 4.8
Amounts Remaining to be Incurred	15.4		15.4		$ 14.9
Employee Separation Costs
Restructuring and Related Costs [Line Items]
Restructuring charges	5.5		8.3
Other Costs
Restructuring and Related Costs [Line Items]
Restructuring charges	0.5		1.8
Rigid Industrial Packaging & Services
Restructuring and Related Costs [Line Items]
Total Amounts Expected to be Incurred	23.9		23.9
Restructuring charges			9.7
Amounts Remaining to be Incurred	14.2		14.2
Rigid Industrial Packaging & Services | Employee Separation Costs
Restructuring and Related Costs [Line Items]
Total Amounts Expected to be Incurred	19.1		19.1
Restructuring charges			8.0
Amounts Remaining to be Incurred	11.1		11.1
Rigid Industrial Packaging & Services | Other Costs
Restructuring and Related Costs [Line Items]
Total Amounts Expected to be Incurred	4.8		4.8
Restructuring charges			1.7
Amounts Remaining to be Incurred	3.1		3.1
Flexible Products & Services
Restructuring and Related Costs [Line Items]
Total Amounts Expected to be Incurred	1.6		1.6
Restructuring charges			0.4
Amounts Remaining to be Incurred	1.2		1.2
Flexible Products & Services | Employee Separation Costs
Restructuring and Related Costs [Line Items]
Total Amounts Expected to be Incurred	0.7		0.7
Restructuring charges			0.3
Amounts Remaining to be Incurred	0.4		0.4
Flexible Products & Services | Other Costs
Restructuring and Related Costs [Line Items]
Total Amounts Expected to be Incurred	0.9		0.9
Restructuring charges			0.1
Amounts Remaining to be Incurred	$ 0.8		$ 0.8