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Basic and Diluted Earnings Per Share (Detail)
2 Months Ended
Mar. 31, 2014
Mar. 31, 2013
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]    
Incremental shares assumed issued on exercise of in the money 3,882,634 5,853,436
Stock Options
   
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]    
Incremental shares assumed issued on exercise of in the money 3,882,634 3,970,690
Warrants
   
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]    
Incremental shares assumed issued on exercise of in the money 0 1,882,746