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SHARE-BASED COMPENSATION AND BENEFIT PLANS (Other Share-Based Compensation) (Narrative) (Details) - Employee stock purchase plan [Member]
3 Months Ended
Mar. 31, 2021
Share-Based Compensation and Benefit Plans  
Employee stock purchase plan stock purchase percentage 85.00%
Restricted stock [Member]  
Share-Based Compensation and Benefit Plans  
Vesting period 3 years