Quarterly report pursuant to Section 13 or 15(d)

LONG-TERM DEBT -Covenants (Details)

v3.20.1
LONG-TERM DEBT -Covenants (Details) - Senior Secured Notes
Mar. 31, 2020
USD ($)
September 30, 2020  
Line of Credit Facility [Line Items]  
Total leverage covenant ratio 5.75
Senior Secured Notes Due 2024  
Line of Credit Facility [Line Items]  
Cash and cash equivalents, allowed to deduct from adjusted EBITDA to debt ratio $ 15,000,000
Senior Secured Notes Due 2024 | December 31, 2020  
Line of Credit Facility [Line Items]  
Total leverage covenant ratio 5.50