Financial Instruments and Fair Value Measurements - Additional Information (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended		12 Months Ended
	Apr. 30, 2014	Apr. 30, 2013	Apr. 30, 2014	Apr. 30, 2013	Oct. 31, 2013
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Approximate reclassification of net loss from accumulated other comprehensive income			$ 0.4
Interest rate swap agreements maturity year	2014		2014
Weighted average of variable interest rate	0.15%		0.15%		0.17%
Weighted average of fixed interest rate	0.75%		0.75%		0.75%
Realized losses on interest rate derivatives related to statement of operations	(0.2)	(0.2)	(0.4)	(0.4)
Other comprehensive losses on interest rate derivatives			0.4		0.6
(Gains) losses recorded under fair value contracts	(2.0)	1.3	0.2	(0.4)
Recognized amount of impairment charges	0		0
Interest Rate Derivatives [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Notional amount	150.0		150.0
Derivative number of instruments held	2		2
Foreign Currency Forward Contracts [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Notional amount	122.4		122.4		137.6
Rigid Industrial Packaging & Services [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Recognized amount of additional impairment related to net assets held for sale					4.6
Paper Packaging [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Recognized amount of impairment charges				$ 1.8