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EARNINGS PER SHARE - Additional Information (Detail) (Stock Options)
3 Months Ended 6 Months Ended
Jun. 30, 2012
Jun. 30, 2011
Jun. 30, 2012
Jun. 30, 2011
Stock Options
       
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]        
Shares that were not considered in computation of potential common shares for purposes of diluted EPS 75,000 77,750 50,000 53,750