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STOCK BASED COMPENSATION Status of PSUs (Details) - $ / shares
3 Months Ended 9 Months Ended
Sep. 30, 2021
Jun. 30, 2021
Mar. 31, 2021
Sep. 30, 2020
Jun. 30, 2020
Mar. 31, 2020
Sep. 30, 2021
Sep. 30, 2020
Shares                
Vested (in shares) 0 (57,000) (357,000) 0 (13,000) (300,000)    
Performance Stock Units                
Shares                
Non-vested at beginning of period (in shares) 1,815,532   1,352,438 1,587,607   1,664,650 1,352,438 1,664,650
Granted (in shares)             990,000 911,460
Forfeited (in shares) (16,290)     (14,851)     (161,946) (680,778)
Vested (in shares)             (381,250) (322,576)
Non-vested at end of period (in shares) 1,799,242 1,815,532   1,572,756 1,587,607   1,799,242 1,572,756
Weighted- Average Fair Value at Grant Date                
Non-vested at beginning of the period (in usd per share) $ 2.53   $ 2.50 $ 2.50   $ 2.53 $ 2.50 $ 2.53
Forfeited (in usd per share) 2.63     2.55     2.63 3.27
Granted (in usd per share)             2.62 2.65
Vested (in usd per share)             2.60 1.92
Non-vested at end of period (in usd per share) $ 2.53 $ 2.53   $ 2.41 $ 2.50   $ 2.53 $ 2.41