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SHARE-BASED AWARDS AND STOCK OPTIONS - Valuation Assumptions (Details) - Employee stock option
6 Months Ended
Jun. 30, 2020
Jun. 30, 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Risk-free interest rate (as a percent) 1.24% 2.49%
Expected volatility (as a percent) 30.00% 30.00%
Dividend yield (as a percent) 0.39% 0.04%
Expected term (years) 5 years 5 years