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STOCK-BASED COMPENSATION PLANS - Summary of restricted stock award activity (Details) - Restricted Stock [Member] - $ / shares
shares in Thousands
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Share-based Compensation Arrangement by Share-based Payment Award    
Granted but not vested at beginning balance 295 112
Granted 381 352
Forfeited (103)  
Vested (119) (169)
Granted but not vested at ending balance 454 295
Weighted Average Grant Date Fair Value, Beginning Balance $ 11.53 $ 5.28
Weighted Average Grant Date Fair Value, Granted 14.15 11.75
Weighted Average Grant Date Fair Value, Vested 10.92 7.76
Weighted Average Grant Date Fair Value, Forfeited 12.40  
Weighted Average Grant Date Fair Value, Ending Balance $ 13.69 $ 11.53