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SHARE-BASED COMPENSATION - Summary of Weighted Average Assumptions Used for Options Granted (Detail)
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Share-based Compensation Arrangement by Share-based Payment Award      
Dividend yield (in percentage) 0.00%    
Stock Option Plan      
Share-based Compensation Arrangement by Share-based Payment Award      
Expected life (in years) 5 years 6 years 6 years
Expected volatility (in percentage) 27.00% 26.60% 26.70%
Risk-free interest rate (in percentage) 0.40% 1.80% 2.70%
Expected forfeiture rate (in percentage) 0.00% 0.00% 0.00%