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, 2013	Nov. 30, 2012	Nov. 30, 2013	Nov. 30, 2012
Business Combinations [Abstract]
Pro forma net sales	$ 141,758	$ 144,260	$ 446,762	$ 455,659
Pro forma net earnings	$ 9,747	$ 8,087	$ 30,439	$ 23,393
Pro forma earnings per share - diluted	$ 0.37	$ 0.31	$ 1.16	$ 0.90

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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