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Quarterly Financial Data (Unaudited) - Summary of Company's Unaudited Quarterly Results (Parenthetical) (Detail) (USD $)
In Thousands, unless otherwise specified |
12 Months Ended |
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Mar. 31, 2015
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| Quarterly Financial Information Disclosure [Abstract] | |
| Restructuring charge | $ 1,718us-gaap_RestructuringAndRelatedCostIncurredCost |
| Restructuring charge, net of tax | $ 1,164ghm_RestructuringAndRelatedCostIncurredCostNetOfTax |
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- Definition
Restructuring and related cost incurred cost net of tax. No definition available.
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- Details
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- Definition
Discloses the amount charged against the accrued restructuring reserves, or earnings if not previously accrued, during the period for the specified type of restructuring cost. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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