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Restructuring and Other Charges, net (Additional Information) (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Dec. 31, 2014 Person
Restructuring Cost and Reserve [Line Items]
Restructuring Charges	$ 2,200us-gaap_RestructuringCharges
Number of personnel eliminated	60
Personnel
Restructuring Cost and Reserve [Line Items]
Restructuring Charges	1,740
Facilities
Restructuring Cost and Reserve [Line Items]
Restructuring Charges	$ 488

- Definition

Amount of expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses related to a discontinued operation or an asset retirement obligation.

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