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Acquisitions - Summary of Operating Information on Pro Forma Basis (Detail) - USD ($) $ / shares in Units, $ in Thousands | 3 Months Ended | 9 Months Ended
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Nov. 30, 2014 | Nov. 30, 2014
Business Combinations [Abstract] |  |
Pro forma net sales | $ 153,155 | $ 465,891
Pro forma net earnings (loss) | $ (70,996) | $ (52,450)
Pro forma earnings (loss) per share - diluted | $ (2.76) | $ (2.02)

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