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SHARE-BASED COMPENSATION - Summary of Restricted Stock Unit Activity (Detail) (Restricted Stock Units (RSUs), USD $)
In Thousands, except Share data, unless otherwise specified
6 Months Ended
Jun. 30, 2014
Restricted Stock Units (RSUs)
 
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]  
Balance beginning of period (units) 588,727
Granted (units) 214,188
Vested (units) (299,872)
Balance end of period (units) 503,043
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Roll Forward]  
Weighted Average Grant Date Fair Value, beginning of period (in USD per share) $ 9.37
Weighted Average Grant Date Fair Value, Awards granted (in USD per share) $ 0.00
Weighted Average Grant Date Fair Value, Awards vested (in USD per share) $ 0.00
Weighted Average Grant Date Fair Value, end of period (in USD per share) $ 8.64
Unamortized Compensation Expense $ 5,605 [1]
[1] Expected to be recognized over the next three years.