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NET INCOME PER SHARE - Antidilutive Securities Excluded from Computation of Diluted EPS (Detail) (Restricted stock units)
In Thousands, unless otherwise specified
3 Months Ended 6 Months Ended
Sep. 30, 2014
Sep. 30, 2013
Sep. 30, 2014
Sep. 30, 2013
Restricted stock units
       
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]        
Restricted stock units (in shares) 0 123 0 201