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LONG-TERM INCENTIVE EMPLOYEE COMPENSATION - Additional Information (Detail) - USD ($)
shares in Millions, $ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2016
Jun. 30, 2016
Jun. 30, 2015
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period 3 years    
Share-based Compensation Arrangement by Share-based Payment Award, Expiration Date 10 years    
Stock options exercised   0.4 0.3
Proceeds from the exercise of stock options   $ 8.8 $ 5.3
Restricted stock vested during period   0.3 0.2
Equity Based Awards [Member]      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Unrecognized compensation cost not yet recognized $ 29.0 $ 29.0  
Unrecognized compensation cost weighted-average period   2 years 3 days  
Liability Based Awards [Member]      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Unrecognized compensation cost not yet recognized $ 3.0 $ 3.0  
Unrecognized compensation cost weighted-average period   2 years 1 month 27 days  
Performance Stock Unit [Member]      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Restricted stock vested during period   0.2