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
Nov. 30, 2014	Nov. 30, 2013	Nov. 30, 2014	Nov. 30, 2013
Business Combinations [Abstract]
Pro forma net sales	$ 146,971	$ 148,541	$ 447,341	$ 467,111
Pro forma net earnings (loss)	$ (71,179)	$ 10,072	$ (53,000)	$ 31,414
Pro forma earnings (loss) per share - diluted	$ (2.76)	$ 0.39	$ (2.04)	$ 1.20

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.

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

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The pro forma net Income or Loss for the period as if the business combination or combinations had been completed at the beginning of a period.

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The pro forma revenue for a period as if the business combination or combinations had been completed at the beginning of the period.

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