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BUSINESS COMBINATIONS (Detail) - Business Acquisition, Pro Forma Information (USD $)
In Thousands, except Per Share data, unless otherwise specified
12 Months Ended
Jan. 31, 2012
Net sales and revenue (in Dollars) $ 684,615
Net income (in Dollars) $ 34,939
Basic net income per share $ 3.83
Diluted net income per share $ 3.80