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Restructuring and Other Charges Narrative (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Dec. 31, 2014	Dec. 31, 2013
Restructuring Cost and Reserve [Line Items]
Restructuring Charges	$ 2,668us-gaap_RestructuringCharges	$ 747us-gaap_RestructuringCharges
Workforce-related
Restructuring Cost and Reserve [Line Items]
Restructuring Charges	1,463	741
Facilities and other
Restructuring Cost and Reserve [Line Items]
Restructuring Charges	$ 1,205	$ 6

- 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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