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INCOME TAXES - Additional Information (Detail) - USD ($)
 3 Months Ended 6 Months Ended
Jun. 30, 2015
Jun. 30, 2014
Jun. 30, 2015
Jun. 30, 2014
Dec. 31, 2014
Income Tax Disclosure [Abstract]          
Income tax expense (benefit) $ 11,479,000 $ 436,000 $ 21,003,000 $ 627,000  
Effective tax rate 41.90% 5.10% 42.40% 6.60%  
Valuation allowance $ 0   $ 0   $ 0
Net deferred tax asset 12,081,000   12,081,000   16,373,000
Unrecognized tax benefits 340,000   340,000   5,400,000
Decrease in unrecognized tax benefits     5,100,000    
Decrease in unrecognized tax benefits is reasonably possible 340,000   340,000    
Tax benefit that, if recognized, would impact effective tax rate 340,000   340,000    
Accrued interest or penalties $ 25,000   $ 25,000   $ 23,000