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Restructuring and Other Charges Narrative (Detail) (USD $) In Millions, unless otherwise specified	9 Months Ended
	Jun. 30, 2014	Jun. 30, 2013
Restructuring Cost and Reserve [Line Items]
Inventory write-offs	$ 0.3
Accelerated amortization of prior pension losses		0.1
Polycold Manufacturing Operation
Restructuring Cost and Reserve [Line Items]
Expected severance cost	1.1
Severance cost	$ 0.9

Amount of expenses for special or contractual termination benefits provided to current employees involuntarily terminated under a benefit arrangement associated exit or disposal activities pursuant to an authorized plan. Excludes expenses related to one-time termination benefits, a discontinued operation or an asset retirement obligation.

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