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STOCK-BASED COMPENSATION PLANS - Additional Information (Detail) (USD $)
3 Months Ended 1 Months Ended 3 Months Ended 1 Months Ended 3 Months Ended 1 Months Ended
Mar. 31, 2012
Management Stock Purchase Plan
Jan. 31, 2012
Stock Option and Incentive Plan 2003
Jun. 30, 2012
2003 and 2012 Stock Option and Incentive Plan
Jun. 30, 2012
2003 and 2012 Stock Option and Incentive Plan
Minimum
Jun. 30, 2012
2003 and 2012 Stock Option and Incentive Plan
Maximum
Mar. 31, 2012
Performance Shares
Long Term Performance Share Plan Twenty Zero Nine to Twenty Eleven
Mar. 31, 2012
Deferred Stock Awards
Defined Contribution Retirement Plan
Jan. 31, 2012
Stock Options
Stock Option and Incentive Plan 2003
Jun. 30, 2012
Stock Options
2003 and 2012 Stock Option and Incentive Plan
Feb. 28, 2012
Restricted Stock
Stock Option and Incentive Plan 2003
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                    
Stock based compensation, option granted   2,000 3,000              
Stock based compensation, expected volatility rate               53.34%    
Stock based compensation, expected life               5 years    
Stock based compensation, expected dividend rate               3.00%    
Stock based compensation, risk free interest rate               0.89%    
Stock based compensation, option granted, grant date fair value   $ 12.68   $ 12.07 $ 12.67          
Stock based compensation, vesting period               5 years 5 years 3 years
Stock based compensation, option granted, contractual life   10 years 10 years              
Stock based compensation, shares granted 7,195           2,322     7,050
Stock based compensation, shares granted, grant date fair value                   $ 35.76
Stock based compensation, number of shares vested           13,969