XML 57 R46.htm IDEA: XBRL DOCUMENT v3.5.0.2
STOCK BASED COMPENSATION - Additional Information (Detail)
$ in Millions
9 Months Ended
Sep. 30, 2016
USD ($)
shares
Stock Options [Member]  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Unrecognized compensation expenses related to non-vested option awards $ 39.7
Weighted average period of recognition for unrecognized compensation expenses 3 years 1 month 21 days
Restricted Stock Units (RSUs) [Member]  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Weighted average period of recognition for unrecognized compensation expenses 3 years 7 days
Award vesting period annually
Ratio of share reserve related to RSUs granted | shares 2
Unrecognized compensation expenses related to RSUs $ 7.8
Restricted Stock Units (RSUs) [Member] | Minimum  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Award vesting period 3 years
Restricted Stock Units (RSUs) [Member] | Maximum  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Award vesting period 5 years