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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
Nov. 30, 2016
Nov. 30, 2016
Business Combinations [Abstract]    
Pro forma net sales $ 97,803 $ 297,745
Pro forma net earnings $ 5,990 $ 19,957
Pro forma earnings per share - diluted $ 0.23 $ 0.77