v3.19.3.a.u2
STOCKHOLDERS' EQUITY - fair value of PSU (Details) - 2019 PSU awards
$ / shares in Units, $ in Millions
12 Months Ended
Dec. 31, 2019
USD ($)
$ / shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Expected stock price volatility 45.00%
Expected dividend yield 9.23%
Risk-free interest rate 1.83%
Grant-date stock price | $ / shares $ 8.67
Requisite service period 4 years 7 months 6 days
Grant date fair value | $ $ 1.4