Quarterly report pursuant to Section 13 or 15(d)

STOCK BASED COMPENSATION - Performance-Based Restricted Stock Units (Details)

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STOCK BASED COMPENSATION - Performance-Based Restricted Stock Units (Details) - Performance-Based Restricted Stock Units - shares
3 Months Ended 12 Months Ended
Mar. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Vested (in shares) 0 0 0
Forfeited (in shares) 0 120,000  
Outstanding (in shares) 550,000   124,300
Employee      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Granted (in shares)   670,000 124,300