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EARNINGS PER COMMON SHARE - Additional Information (Detail)
9 Months Ended
Sep. 30, 2011
Sep. 30, 2010
Antidilutive Stock Options
  
Earnings Per Share Disclosure [Line Items]  
Stock options and warrants with an exercise price greater than the average market price of the common shares not included in the computation of net income per diluted share1,267,705692,312
Antidilutive Warrants
  
Earnings Per Share Disclosure [Line Items]  
Stock options and warrants with an exercise price greater than the average market price of the common shares not included in the computation of net income per diluted share465,117465,117