Annual report pursuant to Section 13 and 15(d)

STOCK-BASED COMPENSATION - Assumptions (Details)

v3.20.4
STOCK-BASED COMPENSATION - Assumptions (Details) - 2019 Performance Award II
12 Months Ended
Dec. 13, 2019
Dec. 12, 2019
Jan. 04, 2019
Dec. 31, 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Risk-free interest rate 1.53% 1.53% 2.57% 2.57%
Dividend yield 0.00% 0.00% 0.00% 0.00%
Expected volatility 65.00% 65.00% 85.00% 85.00%