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Acquisitions - Summary of Operating Information on Pro Forma Basis (Detail) (USD $) In Thousands, except Per Share data, unless otherwise specified | 3 Months Ended | 9 Months Ended
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Nov. 30, 2014 | Nov. 30, 2013 | Nov. 30, 2014 | Nov. 30, 2013
Business Combinations [Abstract] |  |  |  |
Pro forma net sales | $ 146,971 us-gaap_BusinessAcquisitionsProFormaRevenue | $ 148,541 us-gaap_BusinessAcquisitionsProFormaRevenue | $ 447,341 us-gaap_BusinessAcquisitionsProFormaRevenue | $ 467,111 us-gaap_BusinessAcquisitionsProFormaRevenue
Pro forma net earnings (loss) | $ (71,179)us-gaap_BusinessAcquisitionsProFormaNetIncomeLoss | $ 10,072 us-gaap_BusinessAcquisitionsProFormaNetIncomeLoss | $ (53,000)us-gaap_BusinessAcquisitionsProFormaNetIncomeLoss | $ 31,414 us-gaap_BusinessAcquisitionsProFormaNetIncomeLoss
Pro forma earnings (loss) per share - diluted | $ (2.76)us-gaap_BusinessAcquisitionProFormaEarningsPerShareDiluted | $ 0.39 us-gaap_BusinessAcquisitionProFormaEarningsPerShareDiluted | $ (2.04)us-gaap_BusinessAcquisitionProFormaEarningsPerShareDiluted | $ 1.20 us-gaap_BusinessAcquisitionProFormaEarningsPerShareDiluted

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- Definition The pro forma diluted net income per share for a period as if the business combination or combinations had been completed at the beginning of a period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(2)-(3) -URI http://asc.fasb.org/extlink&oid=25497992&loc=d3e1392-128463 + Details
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- Definition The pro forma revenue for a period as if the business combination or combinations had been completed at the beginning of the period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(2)-(3) -URI http://asc.fasb.org/extlink&oid=25497992&loc=d3e1392-128463 + Details
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