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COMMITMENTS AND CONTINGENCIES (Tables)
12 Months Ended
Dec. 31, 2014
COMMITMENTS AND CONTINGENCIES. [Abstract]  
Schedule of future minimum lease payments under all non-cancelable operating leases with an initial term in excess of one year
Amount  
(in thousands)  
2015 $ 2,455  
2016   1,304  
2017      
2018      
2019      
Thereafter                         
Total   $ 3,759