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STOCK-BASED COMPENSATION PLANS - Employee Stock Purchase Plan (Details) - Employee Stock Purchase Plan - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Purchase price as percent of trading value 92.00%    
Maximum shares available for issuance 200,000    
Threshold limit for shares to be purchased 400    
Value of shares purchased for issuance $ 25    
Common stock issued 19,481 13,017 0
Shares available for issuance 167,502 186,983 200,000