EARNINGS PER SHARE - Additional Information (Details) (USD $)
12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]    
Exercise price of warrants 12.00  
Average per share price 7.92  
Warrant | Warrants to purchase common stock    
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]    
Antidilutive securities excluded from the calculation of diluted earnings per share (in shares) 581,807 14,000,000
Warrant | Warrant exchange    
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]    
Antidilutive securities excluded from the calculation of diluted earnings per share (in shares)   1,000,000