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Restructuring and Other Charges - Additional Information (Detail) | Mar. 31, 2014 | May 31, 2013
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Restructuring And Related Activities [Abstract] |  |
Reduction of global work force | 4.00%us-gaap_RestructuringAndRelatedCostNumberOfPositionsEliminatedInceptionToDatePercent | 7.00%us-gaap_RestructuringAndRelatedCostNumberOfPositionsEliminatedInceptionToDatePercent

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- Details
Name: | us-gaap_RestructuringAndRelatedActivitiesAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Definition Percentage of the total number of positions eliminated as of the balance sheet date since inception of the restructuring plan(s). + References No definition available. + Details
Name: | us-gaap_RestructuringAndRelatedCostNumberOfPositionsEliminatedInceptionToDatePercent
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant