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STOCK-BASED COMPENSATION - SCHEDULE OF INFORMATION REGARDING RESTRICTED STOCK UNITS OUTSTANDING (Detail) - RSUs outstanding - USD ($)
$ in Millions
9 Months Ended
Sep. 30, 2017
Dec. 31, 2016
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
RSUs outstanding, number (in shares) 627,454 427,192
RSUs vested and expected to vest using estimated forfeiture rates, number (in shares) 507,542  
RSUs outstanding, Weighted Average Remaining Contractual Life (years) 1 year 4 months 24 days  
RSUs vested and expected to vest using estimated forfeiture rates, Weighted Average Remaining Contractual Life (years) 1 year 3 months 10 days  
RSUs outstanding, aggregate intrinsic value (in dollars) $ 5.1  
RSUs vested and expected to vest using estimated forfeiture rates, aggregate intrinsic value (in dollars) $ 4.1