Restructuring Charges - Narrative (Detail) - 3 months ended Feb. 28, 2014 - USD ($)	Total
Restructuring and Related Activities [Abstract]
Workforce reduction, percent	2.00%
Gross restructuring charges	$ 1,026,980

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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