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SHARE-BASED COMPENSATION - Narrative (Details)
9 Months Ended
Sep. 30, 2015
USD ($)
shares
Restricted Stock Units (RSUs)  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Period for recognition of unamortized compensation expense 3 years
Granted (units) 262,555
Amended And Restated Equity Incentive Stock Plan  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Non Employee Directors Annual Equity Awards Amount | $ $ 90,000